Abstract
To balance the needs and actual or potential facilities, mankind has tried along with time. Water, ground, soil, road is from environmental factors forming a living place while one or more factors may play more important role depending on some situations. The culture is created due to people interactions and is progressing longitudinally and affects human activities. Ignoring the environment makes the debate impossible on cultural and behavioral conditions. Culture creates sites and phenomena around the spaces and places. Architecture is one of the main sites of culture in environment. Natural characteristics in the region of Ghahestan made the Ismailia – in the Islamic middle centuries - to establish defensive buildings due to cultural and religious conditions. The results made them to be in accordance with the political and natural conditions of the time. In spite of some environmental limitations, they provided their need in the environment and caused some sort of cultural and environmental accordance in the region. This study introduces the Kouh Zardan castle of Zirkouh city in South Khorasan. This castle has spent two different residence eras. The castle was used as a defensive place at the first era may be known as Saljooghi. Ilkhani’s were the second residents.The main question of the research is, what role has the natural geography of the area played in the castle of Castle Zardan Mountain architecture? The castle of Zardan Mountain has been built with regard to the environmental conditions of the area and the impact of the environment in the castle architecture space is not only in the use of native materials, but other factors such as climate, altitude, distance and proximity to water resources, geological structure and ... has played a key role in the formation of the castle. This paper is descriptive and analytical and its data has been through library resources and field surveys.
Keywords: Kouhzardan Castle, Architecture, Environment, Culture, Vegetation, Water resources.

Introduction
The breadth of the land of Iran, along with the diversity of its posterity, has created a situation in which the inhabitant should think in a special area of thought with creativity and sharpness in order to maintain, maintain and maintain their place of residence (Pazoki Tohruidi , 1376: 101). Environmental conditions, especially the climate, soil type, water resources, etc., can play a crucial role in the formation of a civilization (Wylie, 2007: 11). Among other factors that make use of these conditions in the environment, culture is. Culture is the result of an interpretation that humans themselves and their relationships with each other and nature (Abedi Sarvestani and Shah Vali, 1391: 2). If one looks at one of the applications of culture, then architecture as an outlook for human beings is one of the important aspects of culture that is studied in the geographic area as a perspective (Fayaz et al., 2011: 92). In many parts of Iran, there are works of old castles that have been constructed with the administrative and political conditions of their period and connect with their surroundings and create a solid structure. Quhistan is one of the places that has caused a favorable environment for the construction of the Ismaili dome in the Middle Ages due to its mountainousness due to the desert of central and loot, the plain called Afghanistan and the political and religious conditions. Castle Mountain Zadran One example of this type of castles, in South Khorasan province is located in the city Zirkouh the height of the mountain fortress Zadran on it and mastery of the environment, a perfect opportunity to the mountain’s topography around The fort is composed of mountainous and plain. In this article, the geographic conditions of the area and its impact on the architecture of Castle Zardan Mountain are discussed.

Castle Zardan Mountain
Castle Zardan Mountain is located in South Khorasan province, Zirkouh city and Zardan village, and is based on the point (UTM) at latitude and longitude 747004/3707960 with an average elevation of 1,770 meters above sea level. Castle Zardan Mountain is located above a single mountain (between 50 to 90 degrees) and overlooks the surrounding plains. The length of the castle is 100 meters and its width is 80 meters with an area of 8000 square meters and a height of 92 meters from the surrounding environment. The castle is based on a nearly square shape (Nasrabadi, 1391: 111). The architectural features of the castle include the remains of several towers, parts of the fence, the walls of the castle’s interior spaces, water cabinets, and several chamber-covered rooms. Citadel of the castle is located in the highest castle space. Some of the architectural spaces of the fortress are crafted in the rock form, so that rocks from the bed of this space can be used as building materials for the walls. In view of the architectural space of the castle building, it is seen that most of the residential spaces of the castle are opposite to the cold weather of the winter, so as to see some kind of compatibility with the winds of the area in this castle. For the construction of Ismaili castles, in addition to choosing it geographically, in the harsh areas, the villages near the fortress were chosen according to the Shiite religion, especially the Shiite Ismaili, as well as the environmental facilities including the water they had. Castle Zardan Mountain is located in a relatively blue area and today it is rich in agriculture. In the choice of castle, the environment was also considered vegetation, so that if materials such as bricks and pottery or melting metals were used for molding weapons, it was possible to make furnace with regard to vegetation.

Conclusion
Climatic factors have created buildings and spaces that are consistent with the environment, which is in fact the outlook for warm and dry regions, which expresses the complex relationships of man with its rough environment, so that architecture is the most obvious type of landscape (peasant, 1382: 68-67). Among these architectural views, it is possible to construct an Ismaili dome in most parts of Iran, especially in Qehistan. Castle Zardan Mountain is one of the Ismaili castles in Ghahistan, which is built according to the environmental conditions of the area and is related to some kind of architectural complexes of the castle with surrounding environment. Environmental factors were also very influential in the construction of the Castle Zardan Mountain due to cultural and historical factors, while how to form the fortress in order to adapt to natural conditions is more than anything else related to its surroundings. The influence of the environment in the castle architecture was not limited to the use of indigenous materials, but other factors such as climate, elevation, distance and proximity to water resources, geological structure, etc., also played a key role in the formation of the castle. In general, the most important factor is the formation of a water culture, access to water, and whether these water structures can be seen inside or outside the castle. But from other points of view, the castle landscape architecture is surrounded by the surrounding environment around the castle. The communication route is also seen in the perspective of the castle of Mount Zardan and other Isma’ili castles close by. The Castle Zardan Mountain is located on a single high mountain point with a steep pitch towards the surrounding area, for the sake of ease with the surrounding area and connecting with other Ismaili castles in the landscape.

Abstract
The rock art heritages all across Iran have a exceptional importance compared to the rock arts of the world. For example, the Bistoon rock art complex is listed on the World Heritage Sites and some others, like Naghsh-e-Rustam, are located in the cultural landscape of World Heritage. The entities of such rock heritages to an evolving environment, have been threatened, especially with the increase in air pollutants. Threats of Environmental Pollutants might have endangered the Integration of these Cultural Landscapes. The presence of these pollutants is due to the presence of large and small pollutant industries, especially petrochemical complexes. For the first step, it is necessary to evaluate different methods of monitoring air pollutants on rock cultural heritage. Various methods of environmental measurements have been used to assess the condition of the rock heritage. These monitoring techniques can be divided into direct and indirect methods. The main research question is about the advantages and disadvantages of each of these two methods for choosing the suitable rock heritage monitoring system. In this article, next to gathering information from objective observations and theoretical studies, the data were obtained through qualitative analysis. In this article, after examining the characteristics of these two methods, the type of direct monitoring required has been identified to identify air pollutants and control the rock heritage. Meanwhile, new conservation experiences in historic sites can reduce concerns about energy infrastructure constraints and reduce the cost of continuous monitoring of rock heritage. Therefore, the results will be applied in addition to having fundamental and theoretical values.
Keywords: Rocky Heritage, Air Pollution, Environmental Monitoring, Naqsh-e Rostam.

Introduction
Monitoring is the periodic measurement of the environment that compared to the data obtained and the predetermined characteristics (Thomson, 1965). In cultural heritage sites, it is necessary to examine the process of environmental change over the short, medium and long terms, in relation to the historical impact and development centers. It also analyzes whether the two issues of conservation and economic development have been compromised (Íñigo et al., 2006). Continuous monitoring can be considered as a criterion for decision-making in the conservation of cultural heritage and provide shared benefits to heritage sites with the goal of improving site management and preventive conservation (Smith, 1991).
Research Objectives and Necessity: The main objective of this paper is to evaluate air pollutant monitoring methods in rock heritage. The gradual expansion of cities and industries has made it unavoidable to change historic and ancient spaces even in the most remoted areas. This has become a challenging debate about the World Heritage Sites and the cultural landscape around the, and more and more important is how to control the side effects of this condition, so environmental measurements are certainly the first step.
Research Questions and Hypothesis: In the present study, while reviewing the advantages and disadvantages of direct and indirect monitoring methods in rock heritage, has been analyzed a more appropriate system for monitoring of such heritages. It seems that in order to select an effective monitoring method, should be evaluated their impact on measuring the quality of changes in the site and to determine its scale and method according to the objective.
Methodology: In this paper, while classifying environmental pollutants, it is emphasized the necessity of choosing an appropriate monitoring approach. Also have been investigated different methods and experiences of measuring and monitoring air pollutants and have been analyzed the advantages and disadvantages of direct and indirect monitoring techniques for selecting the most suitable rocky heritage monitoring system.

Context
Generally, environmental pollutants are divided into several major categories Which include: 
1) Small and Large Industries 2) Large Scale Agriculture and 3) Road Vehicles, that each of these sources produce all kinds of environmental pollutants and can damage the rock structures (Likens Gene E., 2013: 259). Large groups of pollutants are SOx, NOx and COx that have been identified and measured for many years by sensor monitoring (Frassoldati et al., 2005). Monitoring sensor are continuously developing and they are advanced enough to be able to detect the type and concentration of different types of Nitrogen oxides, Sulfur and Carbon oxides both in situ (without the need for a laboratory) and at time (not after time) (Yu et al., 2015: 250 ؛Zhang Y. et al., 2018: 224). In this respect, techniques SPME (Solid Phase Microextraction), DLLME (Dispersive Liquid-Liquid Microextraction) and etc., have been very effective in extracting environmental pollutants (Tang et al., 2011; Farré et al, 2010). There are two main options for monitoring: direct monitoring (active or passive methods) or indirect monitoring (structurally or using extraction methods). Direct monitoring measures and records the amount of air pollutants at specific time periods. In contrast, passive monitoring measures the effect of air pollutants on monuments indirectly at specified times, which are usually longer.

Conclusion
Choosing an effective strategy for rock heritage management with the objective of preventive conservation against air pollutants, it needs to understand the structure of the object, the environment around it and the relationship between the two. In addition to scientific studies, this  is partly dependent on the value and significance of the object from a social and cultural point of view. The advantages and disadvantages of using direct and indirect monitoring methods for selecting the appropriate rock heritage monitoring system and its measurable variables are presented and summarized in Table 1. Therefore, it would be far more useful to have a direct monitoring system for rocky heritage and it is a strategy for treatment and preventive conservation. It should be noted that any strategy definition does not necessarily mean conservation of the objects and it is necessary to continue the environmental monitoring after adopting preventive conservation, in order to determine the effectiveness of the methods and, if necessary, to revise and correct the methods.

Abstract
The study of human remains derived from burial and non-burial contexts is one of the subcategories of Archaeometry. According to these studies, archaeological researchers, with the help of physiologists, have quantitative and quantitative aspects of the remnants of past humans, including age, Sex and the use of medical tests, especially pathology, diseases and causes of death. The topic of interdisciplinary studies in the Khorasan area, due to the lack of material evidence until the present decade, lacked any research, although the importance of Khorasan has always been mentioned in this cycle. In the last decade, according to the approach of researchers in this field, the subject of quantitative studies has flourished. In this regard, the human remains of three burials belonging to the late bronze age from the Shahrak-e-Firouzeh site were used to determine the age and gender of the samples, as well as to identify the ethnic race in the study of physical anthropology. In this research, human skeletons of the Shahrak-e-Firouzeh site were first cleaned up. Finally, with the participation of the Medical Society of Isfahan, the determination of age, gender and race was performed on the basis of morphology and anthropology. Then extracted DNA was isolated and dental samples were taken. The results of physical anthropology studies on the samples indicated that, the samples studied belong to the population of Shahrak-e-Firouzeh site, which is of age in both adolescents and adults (2 adolescents and 1 adult) and sexually belonging to two male and female groups. Men and women). In relation to the mortality rate and demographic average of the Shahrak-e-Firouzeh community, due to the low volume of samples, it cannot be clearly summoned, but according to the current samples and the number of burials, it shows the high rate of low-mortality in the Shahrak-e-Firouzeh Site. 
Keywords: Shahrak-e-Firouzeh, Age, Gender, Bronze Age, Environmental Damage.

Introduction
The study of human remains from burial and non-burial contexts can be considered in the following subcategories of Archaeometry. For these studies, archaeological researchers, with the help of the physiologists, have quantitative and quantitative aspects of the remnants of past humans, including Age, gender, and using medical tests, diseases and causes of death. The present study is one of the interdisciplinary studies in the field of physical and genetic anthropology in the cultural field of Khorasan. After the accidental discovery of the Shahrak-e-Firouzeh site during construction, in 2009, the first excavation season on this site was run by Hassan Basafa, and so far, four archaeological excavations have been conducted on this site. The ancient site of the Shahrak-e-Firouzeh in the northwest of Neyshabur with 36 ° 12 ‘longitude and 58 ° 47’ longitude, is located in the Firoozeh construction site on the eastern side of the river Farub Ruman. Among the cultural materials discovered on this ancient site (third and fourth seasons) are human burial remains buried in the Late Bronze Age. What this research seeks to answer is determining the age and gender, as well as the impact of the environment on the mortality rate of the Shahrak-e-Firouzeh community on the small scale, as well as the impact of post-sediment processes on samples.
The present study was conducted in two ways: library studies and laboratory studies in a descriptive and analytical manner and using the approaches of physical anthropology. In the style of library studies, information on the history of research on human remains has been gathered, and in analyzes and adoption of study methods. Also, in the section on human anthropometric studies, based on the evidence on the teeth, the suture on the skull, the size and texture of the femur bones, pelvic size and other evidence, it has been attempted that the age group, gender group, Skeleton height, samples of the campus Shahrak-e-Firouzeh site are evaluated. It should be noted that tests on the determination of age and gender on skeletal specimens have been carried out under the supervision of specialists in Isfahan Medical Sciences. Based on physical anthropology studies, the results are divided into two groups of adolescents and adults in terms of age and gender in both males and females, and also indicates the high mortality rate at the young age of the Shahrak-e-Firouzeh community, which can be The most important factors are the unsuitable environment conditions due to the impact of the hydrological effects of the river along the settlement.  

Identified Traces
The study samples of this study include two skulls and a complete skeleton in this section to examine how to determine the age and gender of these remnants. The first one, a skull is roughly average. The thickness of the existing bones, the shape of the lower jaw, the posterior bumps, the rigid bone tissue, the maximum length, width and height of the skull, as well as the shape of the forehead of the sample is steep, which according to these characteristics is the first example of a man’s skull. Considering the formation of the teeth type, especially the third molar, considering the low erosion of the crown of the teeth and the presence of enamel of the teeth, as well as the qualitative aspects of the skull joints, in particular the closure of the crown part of the seam which is characteristic of individuals 25 years and the closure of the section of the seam At the age of 35, the age of this sample can be determined between the ages of 25 and 34. 
The second specimen is a relatively small, medium-sized cranium found in a gravel gorge. The fineness of the skull bones, the shape of the lower jaw, the nasal blade, Peshafi’s flatness, the smooth tissue of the bones, the maximum length, the delicacy of the cavity bumps, the width and height of the skull, as well as the form of the forehead of the sample, directly and without the prominence of the cavity above, Paying attention to these features is the second example of a woman’s skull. Finally, by examining bone tissue, skull volume, elegance, flattening of the skull structure, non-prominence in the post-serous bone, ear hole, root canal examination, and the time of their formation, the last tooth formed in the jaws of the sample, which is the second lower molar, as well Maximum length, width, face width, forehead bone, can be attributed to a teenage girl between the ages of 11 and 16. The third example is the complete human skeleton that is obtained from burial with a hole structure. Examining the height index of the sample, as well as the fineness of the ribs, the destruction of the toes and the hand of the skeleton, as well as the failure to weld the joints of the hip, the age-specific sample belongs to a teenager of 11 to 16, but due to the lack of sufficient evidence for gender identification In this sample, the sex group has not been identified.

Conclusion
As mentioned in the text, the establishment of the Shahrak-e-Firouzeh Site is one-period site belonging to the final phase of the Bronze Age (2100 to 1500 BC), located next to one of the important rivers of Neyshabur Plain, called Farub Ruman, which originates from the Binalud Mountains. The gradual continuation of the accumulation of flood and alluvial layers over several years or decades on the surface of this establishment caused excessive moisture to penetrate the ancient bedding of the studied samples, as well as washing the surface of the surrounding area by flooding, also solving the harmful mineral elements, including salt It is found in Neyshabur Plains and other harmful mineral salts with alluvial layers, which caused the greatest damage after the sedimentation process on the studied specimens. In addition to high humidity, which causes the decay and degradation of most parts of the bone samples studied, the heavy flood layers on the substrate also cause compression of the anterior substrate and fracture of different bone sections. According to physiological anthropological studies, the samples belong to people from the Shahrak-e-Firouzeh community, which are of age in both adolescents and adults (2 adolescents and 1 adult) and sexually belonging to two male and female groups (men and women).

Abstract
South Rudbar Plain, with an area of more than 6000 square kilometers, is one of the important archaeological areas in the southeast of the Halil-Rood cultural area. This area, due to its favorable environmental conditions, including the permanent water of the Halil-Rood River, the fertile and vast plains, and the pasture heights in the northern part, as well as due to its geographical capacity and the communication route between Sindh and Sistan to Jiroft, was the foundation for the presence of human societies with the livelihood structures such as sedentary lifestyle and nomadic. As a result of two seasons of Archaeological surveys in South Rudbar plain during the last two decades, a number of ancient settlements were identified in this area. However, in these surveys, the focus is on pre-historic sites, while the sites of the Islamic era have not been studied deeply and completely, and only their GPS points have been recorded and incomplete descriptions of them have been provided. Therefore, answers have not yet been provided to questions about the role and influence of environmental factors on the distribution of Islamic settlements and the formation of livelihood organizations. In the following article, for the first time, the effect of environmental factors on Settlements of the Islamic era in Rudbar plain was studied with an analysis based on the findings of two archaeological surveys, documentary studies, and the preparation and interpretation of GIS maps. For this purpose, the settlements of Rudbar plain were divided into two time periods based on relative dating: “first to early middle Islamic centuries” and “late centuries (from the 10th century AH onwards)”. Then, environmental factors such as altitude above sea level, resources water, amount and direction of the slope of the lands, soil characteristics, and condition of roads in connection with settlement evidence were analyzed. The results of the research show that the most important factors affecting the formation, distribution, and organization of the livelihood of the Rudbar plain settlements in the Islamic era are the Halil-Rood River and the Aqueducts as the water sources in the peripheral parts, the trade route of Jiroft to Sind and Sistan, and the unevenness of the north and northeast for benefit from the potential of animal husbandry.
Keywords: South Roudbar, Environmental Factors, Distribution of Residence, GIS, Islamic Archaeology.

Introduction
The environment and its substrates are very important in examining the distribution pattern of ancient sites in a region. According to archaeological research, Rudbar plain has been a suitable place for human societies to live since at least the Copper Age (cf. Daneshi and Eskandari, 2016). This area as a commercial crossing (Yacoubi, 1963: 62) and one of the important areas of agricultural and livestock production (Sarhadi, 2017: 24), is very important in the archaeological studies of the Halil Road cultural area. However, the settlements of the Islamic era in the Rudbar plain do not have a share in the previous archeological studies and there are questions about this, which of the environmental factors and at what qualitative and quantitative level is effective in the distribution of settlements in the Rudbar plain in the south of Halil Roud cultural region during the Islamic era?
Based on this, the main purpose of this research is to investigate and analyze environmental factors affecting the formation and development of the Islamic settlements of Rudbar plain with a focus on geological features, altitude, water resources, and trade routes. Despite the numerous narratives of the early Islamic geographers about this region (see: Yaqoubi, 1963; Ibn Hawqal, 1966; Istakhari, 1994), no independent research has been done to identify and investigate the Islamic era settlements in Rudbar plain; and this issue shows the necessity and importance of this research. Also, the results of this research can help to understand the roots of the urban culture of this region in the early Islamic Middle Ages. 
The current research is historical research and a descriptive-analytical method was used. Research data has been collected by documentary and field methods. 

Discussion
The statistical database under study includes 53 sites and historical monuments, which are divided into two groups of settlement evidence, “first to seventh century AH” and “late Islamic centuries (Safavid and Qajar)” based on relative chronology (Tables 1 and 2). In order to explain the impact of environmental factors on the location of these sites and evidence, a geographic information system (GIS) has been used.

1. The effect of the height coefficient on the distribution of settlements
To explain the effect of height above sea level on the formation of the landscape and the distribution of the studied settlements, the height of the Rudbar plain is classified into eight classes (Figure 3, Chart 1). The largest number of cultural evidence representing the settlements of the Islamic era have been formed in this region at an altitude between 500 and 600 meters above the surface of open water, while only 4 sites have been found at an altitude of less than 400 meters above sea level. It seems that the large number of settlements at altitudes between 500 and 600 meters, which exactly covers the slopes of Rudbar Plain, is proof of the predominance of nomadic livelihoods in the Rudbar Plain during the Islamic era, and on the other hand, the small number of sites at an altitude of less than 400 meters can be analyzed in relation to the swampy condition of the Rudbar plain and the greater extent of the Jazmurian bed in the past.

2. The effect of water resources on the distribution of settlements
According to the maps obtained from GIS, most of the sites and evidence related to the settlements are located at a close distance from the surface water network, especially the Halil Rood River (Figure 4, Diagram 2). So, 17 sites, equivalent to 32% of the sites, were developed less than 5 kilometers away from Halil Rood River and under the direct influence of this water source. Another source of water is the Aqueduct. Among the sites of the Rudbar plain, especially those located on the edge of the plain and on the surface of the alluvial cone, were developed in connection with this water source (Figure 5).

3. The influence of the roads on the distribution of settlements
South Rudbar Plain was one of the important communication crossings of the Islamic era due to its location on the old communication and trade route from Indus to Jiroft (Yaqoubi, 1963: 62). According to the explanations of geographers about this ancient road, the current route of Rudbar to Iranshahr has been determined as a part of the aforementioned ancient route and the sites found have been investigated based on this route. As a result of this analysis, 17 sites with a significant linear extension in the west-east direction are located at a distance of 500 meters to 5 kilometers from this main communication road of the region (Figures 6 and 7, Diagram 3).

4. The influence of the slope of the land and its direction on the distribution of settlements
Based on the distribution map of sites and cultural materials related to the settlement of Islamic centuries in the Rudbar plain, we are facing a relatively flat land (Figure 8, Diagram 4). Regardless of the slope of the heights, we are facing a large and relatively flat plain where all the sites found were developed on a bed with a maximum slope of 5%. In fact, in terms of the relationship between the location of the sites and the slope of the land, no significant pattern can be defined. The settlements are located in various slope directions, including south, southeast, and southwest (Figure 9). Considering that the Rudbar plain is one of the tropical areas of the Halil River basin, it seems that the direction of the slope with a southern tendency is not logical. Therefore, it is clear that other environmental factors play a more important role in choosing a place of residence.

5. The effect of land use on the distribution of settlements
As a result of the land classification of Rudbar Plain based on the type of land use in the present era, four types of land use including pasture, agriculture, slopes, and the bed of Jazmurian Lake were investigated. Referring to the output map according to the type of land use, it seems that this factor played a decisive role in the distribution of settlements (Figure 10, Diagram 5). Considering the location of the settlements in connection with pasture and agricultural lands, the pattern of distribution can be interpreted in direct relation with the nomadic livelihood structure with a wider level and the agricultural structure with a smaller level during the Islamic era in the Rudbar Plain.

Conclusion
Rudbar plain is at the southern end of the Halil Rud cultural landscape and corresponds to the current city of Rudbar Jonoob. This region has been the foundation for the presence of human societies during the Islamic era due to its environmental talent, including the permanent water of the Halil River, fertile plains, and pasture heights, as well as being located on the ancient Sind-Jiroft trade route. Based on the analysis of settlement distribution and settlement evidence of the Islamic era and taking environmental factors into consideration, it seems that the cultural landscape of Rudbar plain during the Islamic era was mostly influenced by the variables of altitude, land use, and roads. As a result of the analysis, out of a total of 54 sites and settlement effects found, 50 points are affected by surface water sources such as Halil Rood River and aqueducts, as well as in connection with large pastures and small agricultural lands. Four other local evidence of settlement in the eastern end of the central plain, due to the lack of environmental facilities where they were formed, can only be explained in connection with the ancient road from Indus to Jiroft. Apart from these last four cases, the location of 13 sites/artifacts in the central plain of Rudbar, in addition to showing the relationship with other factors such as height and land use, has also been influenced by the road factor. In general, under the influence of the geographical and ecological factors of the Rudbar plain, the dominant livelihood of the people of the region during the Islamic era was formed based on providing resources through animal husbandry, agriculture, and trade.

Abstract
It is possible to study the climate adaptability of past and present architecture by benefiting from the sciences of archeology, architecture, geography, applied climatology and paleoclimatology. Conducting such studies in connection with the complex of Persepolis in Marvdasht plain belonging to the Achaemenid period adds new information to the scope of our knowledge of the architecture of the mentioned period. The current research seeks to evaluate three main questions: 1) What were the physical components of the architecture of Persepolis complex in order to adapt it to climatic conditions? 2) How effective were these components in line with the mentioned issue? And 3) What were the non-physical heating or cooling arrangements of the complex? The necessary information has been collected by library and field methods and analyzes of four software, AutoCAD, Climate Consultant, Ecotect, and DesignBuilder in the field of energy and architecture and processed in a descriptive-analytical way. The physical components of the architecture of the complex include its orientation towards the south with a northwest-southeast stretch, high density and height of buildings and the creation of passages with a small width, the use of mud-brick in the construction of walls and the creation of a flat covering of wooden beams, the installation of side doors and windows in the walls. South in most of the buildings are the construction of the pillared porch at the entrance of most of the buildings. These components are effective in using the radiant heat of the sun to heat the residents in some hours in the time range from October to April. However, the application of these solutions from November to March (1632 hours in total) is not enough, and heat production was needed. Probably, in order to achieve thermal comfort, the residents had time management in holding gatherings and used non-physical heating arrangements similar to portable open fire-place from the palaces of the Assyrian Empire. Finally, the climatic adaptability of the complex to the Marvdasht plain and the adoption of suitable heating and cooling measures in it have ensured the thermal comfort of the residents.
Keywords: Environmental Archeology, Persepolis Complex, Thermal Comfort in Achaemenid Architecture, Climatic Adaptability.

Introduction
Creating ecological stability between man-made and nature is necessary for the continuation of life. Architecture is one of the aspects of human life that has a direct relationship with climatic conditions. The formation of native architectural styles throughout history shows the extent of knowledge of the ethnic groups from the climatic conditions of the surrounding environment, which is based on the reading of the geographical, historical and social background of the region (Moazzen & Sad berenji, 1400: 168). When the climatic conditions in a region are favorable, human life is formed and continues there. These conditions are different in different parts of the world and it is necessary to use elements in the architectural body of the building with the aim of complying with the mentioned conditions. Archaeological evidence shows that humans have been aware of this issue since prehistoric times and have taken steps towards the optimal use of natural factors and reducing their negative consequences. The architecture of the residential and religious buildings discovered in Tepe Zagheh (Malek Shahmirzadi, 2011: 326-327) and the architectural works obtained from the V cultural period of the Tepe Sagzabad (Talaei, 2015: 145-145) are proof of such knowledge. By adopting suitable cooling and heating measures in the architectural body of the building, a mental condition is created in the residents that express their satisfaction with the thermal conditions of the environment, and it is called the thermal comfort range (Hejazizadeh & Karbalai Darei, 2014: 22).
Historical documents and archaeological data related to the Achaemenid Empire have been discovered from different parts of their territory, and architectural remains are among these discoveries. The architectural complex uncovered in the vicinity of Persepolis in Marvdasht plain is one of the architectural remains left over from the Achaemenid period. The architecture of this complex is in a way that has certain proportions and the Peymoon system (Javnmardi & et al., 2018: 123). The architectural body of each building must match the climatic conditions of the surrounding environment as much as possible in order to ensure the thermal comfort of its inhabitants. If the physical adaptability of the architecture is not enough, cooling and heating measures are taken to produce cold or heat in the building. The problem of the current research is to know the physical components of the architecture and the heating and cooling solutions thought in the architecture of the Persepolis complex in accordance with the climatic conditions of the Marvdasht plain, which can bring information about the adaptation of the architecture to the climatic conditions in the Achaemenid period.

Identified Traces
The physical components of the Achaemenid architecture of Persepolis, in order to implement these arrangements, include the orientation of the complex in relation to the azimuth of sunlight towards the south with a northwest-southeast extension, which is exposed to an average of the maximum amount of solar radiation energy and its optimal value. Due to the gradual construction of the complex, the high density and height of the buildings has caused the creation of passages and two courtyards with a small width, which has reduced the area of the movement field of unfavorable winds, shading the openings on hot days and causing a lot of failure in the passages. The use of mud-brick in the construction of walls and the creation of a flat covering of wooden beams with a large thickness, which has a high capacity and thermal delay, prevents the loss of heat on cold days and reduces the entry of heat from the outside into the interior of buildings on hot days. Installing openings in the northwest-southeast azimuth is an average of the maximum radiant heat (east) and optimal (east-west with south view) azimuths, and the amount of heat received from sunlight is suitable for hot and cold days of the year. Most likely, the doors and windows are closed on cold days. The construction of pillared porches in most buildings also played a role in adjusting the air inside. Applying these solutions in most of the hours from November to March, which is calculated as a total of 1632 hours, is not enough to ensure the thermal comfort of the residents of the complex, and heat production is needed.

Conclusion
Considering the great and well-studied achievements of the architects and master craftsmen of Persepolis in various architectural, technical and artistic fields, it is expected that they will have significant achievements in the field of adaptation of architecture to the environment and heating and cooling arrangements. Based on the analysis of the climatic conditions of Marvdasht Plain and the thermal comfort of its residents, it is more necessary to comply with the heating measures compared to the cooling measures in the architecture of a building in the mentioned area for climate adaptation and providing the thermal comfort of the residents. Natural heating measures include the use of heat from sunlight, which relieves the cold stress of the residents in some hours in the time range of October to April. The cooling arrangements also include shading on the openings and natural air ventilation, which provides thermal comfort to the residents from April to May and from September to October in some hours and in the middle days of the two mentioned periods at all hours of the day and night. There was no need for cooling during the year. In this collection, wall-mounted heaters similar to the examples of the third floor of Babajan Tepe Lorestan have not been identified. For this reason, it is likely that the inhabitants used portable metal fire-place similar to the Assyrian types and provided the necessary heat. Finally, the present research shows that the architects of Persepolis complex, as well as having mastered various architectural techniques, also had sufficient knowledge in relation to various aspects of climate adaptability and the adoption of heating and cooling measures in order to ensure the thermal comfort of the residents in different months of the year.