Showing 147 results for Type of Study: Applicable
Hossein Jahantigh, Esmail Rashidi, Abdolhossein Adel Zadeh,
Volume 24, Issue 73 (6-2024)
Abstract
Objectives: The purpose of this article, the relationship between maximum temperature of Kerman province geopotential height at 500 hPa to avoid risks and losses are extreme temperatures.
Method: In this paper, the approach has been used in the circulation to peripheral circulation patterns will be assessed based approach to environmental data. Therefore, we used two databases. First Base event database environment (surface). In this regard, the surface temperature is selected stations Kerman province. The maximum temperature of the stations in the period 01.01.1368 to 01.01.1398 for 30 years to 10957 the number of days were obtained from the meteorological province. Another database contains data that the data of geopotential height at 500 hPa
Mr Mohsen Kalantari, Mr Hossein Tahmasebi Moghadam, Ms Bahareh Akbari Monfared,
Volume 24, Issue 74 (9-2024)
Abstract
only be implemented when the aforementioned land uses have balanced distribution across the city. In this regard, the present study is to investigate and evaluate learning land uses from the perspective of spatial justice for attain of the learning city approach in Zanjan; And the main goal of this research is to find out the spatial equilibrium in the distribution of learning land uses of Zanjan city, in order to develop the learning city approach. The research method was descriptive-analytical and data collection has done by using the library-documentary method. In addition, in order to analyze the findings, after describing the basic concepts of the learning city and taking into account the principles and indicators governing it, from two indicators of capacity and social justice have been used in the framework of comparing per capita and desirable levels, Nearest Neighborhood (NN) and entropy techniques. The results of the analysis of the distribution of learning land uses in the current situation indicate that the distribution of these land uses in the city are concentrated and clustered, with spatial imbalances. In such a way they show very high qualitative and quantitative differences between the three urban areas, especially indicated in the eastern margin of district two. Such a problem has hampered the development of the learning city approach in Zanjan and has resulted in the concentration of these services in the center of the city and their shortage in the peripheral areas as made a profound inequalities between the residential areas of the city. Therefore, the results of the research provide suggestions for reorganizing learning land uses to establish a spatial justice approach at the city level.
Tooba Alizadeh, Majid Rezaei Banafsheh, Hashem Rostamzadeh, Gholamreza Goodarzi, Hedar Maleki, Hamzeh Alizadeh,
Volume 24, Issue 74 (9-2024)
Abstract
The aim of this study was to identify the epicenter and co-occurrence factors of dust storm wave from 1 to 3 November 2017 in Kermanshah. To investigate the synoptic conditions of the causes of this phenomenon, from the European Central Center (ESMWF) mid-term weather forecast data set with a resolution of 0.125 degrees of arc including, geopotential height, omega, sea level pressure, orbital and meridional components, humidity. The Lagrangian method of HYSPLIT model was used to orient the source of dust particles. in this study, dust storm WRF-chem was simulated using a paired numerical weather forecasting model. Finally, through the processing of MODIS satellite images, its scope was determined. Examination of HYSPLIT tracking maps shows that two general paths for dust transfer to the area can be identified. 1- The northwest-southeast route, which passes through dust cores formed in the deserts of Iraq and Syria, transports dust to the western half of Iran. 2- Southwest to west of Iran and Kermanshah, which is the main source of dust on November 2 and 3, The source of the particles is Kuwait, northern Saudi Arabia and part of Iraq. The spatial distribution of the dust interpreted by the MODIS sensor images is consistent with the spatial distribution of the dust concentration simulated by the WRF-chem model.
Faeghe Zirdabi Oskouei, Solmaz Babazadeh Oskouei,
Volume 24, Issue 74 (9-2024)
Abstract
The decline of social and economic status and functional and physical disorders of these contexts along with the very severe decline in the quality of the urban environment are among the reasons that have persuaded urban policymakers and planners to provide new strategies and solutions in the face of its problems. Accordingly, the futures research approach can keep peoplechr('39')s eyes open for possible future events, opportunities, and risks; Reduces ambiguities, doubts and erosive concerns of people, increases the ability of society and people to make smart choices. In this regard, the purpose of this study is to investigate the key drivers affecting the promotion of dysfunctional urban contexts with a future research approach in the Sartpooleh neighborhood of Sanandaj. This research is applied in terms of purpose and according to the studied components, the approach is descriptive-analytical method and environmental and Delphi scanning technique has been used to identify variables and indicators. Then, a semi-structured questionnaire was distributed among 45 experts in the field of urban issues. The data were analyzed using MICMAC software. The results showed that the urban system, especially in the worn-out tissue section of Sartpooleh neighborhood (in Sanandaj) is going through unstable conditions. Also, according to the analysis, 19 factors as key drivers such as authoritative management methods to renovate worn-out tissue, centralism, timely injection of funds when renovating worn-out tissue directly and variables focusing on improvement and renovation in comprehensive and detailed plans. Citizenschr('39') right to intervene in construction, paving the way for the entry of the private sector and balancing and achieving social justice were indirectly introduced to improve the quality and performance of worn-out structures.
Dr Mohammad Ebrahim Afifi,
Volume 24, Issue 75 (12-2024)
Abstract
Among the natural hazards, without a doubt, the flood is known as a natural disaster. In this research, Shannon entropy model was used to prepare a flood sensitivity map. First, 34 flood watersheds were selected from Firoozabad basin, and then these 34 points were classified into two groups. With 22 points, 65 percent of the points for training and modeling, and 12 points, 35 percent of the locations that were not used in modeling were used for validation. First, a map of the status of the floods was developed and Then, 10 factors, slope, tilt, lithology, land use, NDVI, SPI, TWI, altitudes, rainfall and distances from the river were selected as flood factors in Firoozabad basin. Prioritizing the effective factors in the occurrence of flood by Shannon entropy index showed that the NDVI layers (2.03), rainfall (0.00), distance from the river (1.89), SPI (385.1), elevation classes (999 (0/19), gradient with weight (0,932), lithology (478/0), TWI (379/0), and land use (280/0), respectively (0/184) have the highest and the least impact Flood events. Based on the results of the ROC curve, the predicted surface area under the curve with 35% of the validation data is equal (91.42%) and for the success rate with 65% of the equal education data (92.53%).
Mrs Khadije Khatiri, Mrs Iran Ghazi, Mr Nemat Hasani,
Volume 24, Issue 75 (12-2024)
Abstract
Natural disasters cause severe financial and human damage. Crisis management means purposefully shifting the flow of affairs in a controllable manner with the intention of returning things to pre-crisis conditions as soon as possible. Therefore, the main purpose of this article is to present a model of social capital development in urban water crisis management.The study method is descriptive-survey. In order to collect information, interviews and questionnaires were used and for data analysis, SPSS software, AHP analysis method, regression and T were used. Statistical community including crisis and water crisis managers; Also, all residents of Karaj were in the period between 1396 and 1395, which was estimated as a statistical sample of 350 people using Cochran's table.The results of statistical analysis showed that from the perspective of statistical sample individuals, the amount of social capital was lower than the desired level. Also, the relationship between social capital indicators was significant. Also, the results of couple comparison of main criteria using AHP analysis prioritized the indicators of social trust with 0.433 coefficient, incentive policy criterion and change in attitude space with 0.355 coefficient, criterion The interactive and value infrastructure of the society with a coefficient of 0.277, the interaction with a coefficient of 0.203, and finally the criterion of non-alienation with the government with a coefficient of 0.199 showed the fifth priority.The study shows that countries' ability to deal with crises has a lot to do with crisis management policy, promoting social capital in society and developing a spirit of cooperation and motivating participation among the people is one of the important solutions.
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Farzad Karami, Hamid Barghi, Yousof Ghanbari,
Volume 24, Issue 75 (12-2024)
Abstract
Good governance, having the most important principles and criteria for public participation, accountability, accountability, centralism, transparency, efficiency and effectiveness, justice and equality, consensus and legitimacy is one of the new management approaches and new approaches to development and poverty reduction, especially poverty. This study aimed was to conduct a comparative analysis of the goog governance model in rural areas with an emphasis on the villages of the central part of Poldakhtar and Mosian section of Dehloran. The statistical population of the study, according to Cochran's formula, is 284 heads of households living in the villages of the two central parts and Mosian. Inferential data analysis was performed using t-test, and the sample villages were ranked in terms of rural governance status using The Topsis method. The results obtained from The Topsis method show that the governance situation in Mosian section of Dehloran Township is better than the central part of Poldakhtar Township, and the one sample t-test showed that the average of all components of rural good governance is above average and their significance level is an amount less than 0.05. The results of Levin test also show that there is a significant difference between the two central parts and Mosian regarding governance and its components, apart from responsibility (±1/96). Furthermore, In Mosian section, the average components (participation, accountability, and transparency) were higher than the central part of Poldakhtar Township and in the components (legality, collective agreement, justice, efficiency, and effectiveness) were less than the central part of Poldakhtar Township.
Sara Ferdosi, Hasanali Faraji Sabokbar, Alireza Darbaneh Astaneh, Fazileh Khani,
Volume 24, Issue 75 (12-2024)
Abstract
The development of sustainable entrepreneurship plays a critical role in promoting human well-being and environmental preservation. To achieve this objective, it is essential to understand the factors affecting the emergence of entrepreneurial opportunities in different regions. Therefore, this study aims to explore these factors through a descriptive-analytical survey, with data collected from documentary research and field surveys. The number of experts was 52 who were purposefully sampled using the snowball method. The study employed four indicators and 28 items, which were measured using the Likert scale. A sample of 439 individuals, consisting of 387 villagers and 52 experts, participated in the study. The selection of the 387 villagers was determined using Cochran's formula from a statistical population of 215,104 people. Descriptive statistics, such as mean and standard deviation, as well as inferential statistics, including one-sample t-test and one-way analysis of variance, were used to analyze the data. The results of the one-sample t-test revealed that all indicators examined in the study were statistically significant at a confidence level above 95%. These findings suggest that the villagers' perception of these indicators is positive, given that the observed mean value (3.1) is assumed to be positive. Furthermore, the evaluation statistics, such as the multiple determination coefficient and adjusted coefficient of determination, indicated that the transcendental model provides a better understanding of the factors influencing entrepreneurial opportunities and the key areas of entrepreneurship. The analysis of the transcendental model demonstrated that government subsidies, investment and facilities, product insurance, and education are the most influential factors in the formation of entrepreneurial opportunities. Additionally, the most important sectors for creating and developing entrepreneurship were found to be handicrafts, home-based jobs, oil and gas, medicinal plants, and date production. Overall, the results highlight the region's significant potential for natural, economic, and industrial entrepreneurship, emphasizing the necessity for the government to prioritize investment in entrepreneurship.
Mehdi Hemati, Sadegh Besharatifar, Mohsen Agaee,
Volume 24, Issue 75 (12-2024)
Abstract
The standard of health is one of the fundamental human rights throughout the world. Today, the healthy city approach is considered as one of the dominant approaches in urban and rural studies and even on a national scale. The present study was descriptive-analytical with the aim of analyzing the stability of neighborhoods in the city of Bandar Mahshahr from the perspective of healthy city indicators, in the form of three components of economic, social and environmental and 22 sub-indicators based on 2016 statistics in different neighborhoods of Bandar Assess and evaluate Mahshahr. Using T.Test test in SPSS software to measure the overall stability of the studied indicators, then the weights obtained from the critical method and Idas technique in the GIS environment compared to the ranking and leveling of neighborhoods in the integrated index in terms of The indicators of a healthy city were taken and in the last step, through the path analysis model in pls software, the most effective factor related to sustainability in Mahshahr city neighborhoods were measured and extracted. The analysis of the findings shows that out of 35 neighborhoods studied Only 1, 2, 6, 11 neighborhoods are in a stable and developed condition in terms of having healthy city indicators,.
Keywords: sustainable, sustainable neighborhoods, healthy city, Idas technique, Mahshahr port city
D.r Mostafa Shahinifar,
Volume 24, Issue 75 (12-2024)
Abstract
Urban public spaces have become increasingly vital in the functioning of cities, serving as primary sites for citizen interactions. These spaces play a significant role in understanding human behavior and in shaping behavioral settings. This article examines the factors that influence the establishment of behavioral patterns in Azadi Square, the main square in Kermanshah. Despite its communicative function, the social role of this square remains limited. The research conducted for this article employed a descriptive and survey-based methodology. Data collection techniques included observation, photography, face-to-face interactions, and physical presence within the study area. Additionally, interviews were conducted with randomly selected individuals based on pedestrian flow in the square. Each interview lasted an average of approximately 12 minutes. Analysis of behavioral pattern maps in the area revealed a mismatch between the form and function of Azadi Square. Dynamic and static activities within the square were of short duration, while the haphazard arrangement of details hindered its visual expression. The lack of human-scale dimensions in the space resulted in a decline in quality for activities such as meetings, exercise, play, sitting, stopping, and even walking. Overall, the quality of Azadi Square in Kermanshah has not adequately met the functional needs of its users. Consequently, this research emphasizes the importance of understanding the relationship between behavioral patterns and the environment, enabling designers to enhance the quality of such spaces.
Dr Samaneh Jalilisadrabad, Eng. Somayeh Jalilisadrabad,
Volume 25, Issue 76 (3-2025)
Abstract
Public spaces and social interactions have a reciprocal relationship. The rapid urbanization, limited land availability, and neglect of these spaces in urban development initiatives have resulted in a scarcity of open and green areas per capita, consequently reducing social interactions. District 10 of Tehran, as the most densely populated area, suffers from a lack of both quantity and quality in public and open spaces. Furthermore, issues such as physical deterioration, disrupted urban landscapes, a high tenant rate, low social security, and a transient population have further diminished the quality of existing public spaces and the level of social interaction in this particular district. Hence, the aim of this study is to explore the potential for enhancing public spaces in order to promote social interactions in District 10 of Tehran. The chosen research methodology is descriptive-survey, with data collected through documentary and field studies. The SWOT and QSPM techniques have been employed for analysis. The findings reveal that various factors play a significant role in facilitating social interaction in public spaces. These factors include the diversity of activities, integration of land use, social inclusion, accessibility to public transportation, social security, memorability, safety, engagement of all senses, readability, visibility, flexibility, availability of urban furniture, materials used in urban furniture and pavements, climate comfort, and environmental health. Moreover, creating favorable conditions for the presence of children and the elderly would lead to increased supervision and social security. The superior scenario proposes a set of strategies, including aggressive strategies (SO1: Enhancing social security in existing public spaces, SO2: Promoting the development of open and green spaces on a per capita basis, SO4: Establishing local hangout spots and micro spaces for community gatherings, SO5: Allocating multicultural and artistic spaces, sports venues, etc.) and conservative strategies (ST1: Repurposing inactive municipal-owned spaces, ST2: Encouraging greater citizen participation in social activities). Ultimately, six prioritized strategies are identified, resulting in the formulation of 18 policies and 31 action plans.
Mr Masihollah Mohammadi, Prof Behrooz Sobhani,
Volume 25, Issue 76 (3-2025)
Abstract
Relative humidity is considered to be one of the most important climatic parameters and atmospheric phenomena. The purpose of the present study is to evaluate the regional algorithms for estimating relative humidity using remote sensing data in Hormozgan province. To this end, MOD05 and MOD07 products were employed to estimate total perceptible water, air temperature, and sea-level pressure Additionally, MOD35 was used for cloud verification, , resulting in the identification of 2190 cloudless images with 95% confidence level for analysis. radiosound data of Bandar Abbas ststion and synoptic stations Covering entire Hormozgan Province. were used to evaluate the results. The findings demonstrated high accuracy of the algorithms and experimental model, with acceptable R² and RMSE values between Modis product and ground data. These results align well with ground station measurements. The province's climate was determined to be semi-desert with a long warm season and a short cool period. Further analysis revealed a strong correlation between sea-level pressure and total perceptible water (TPW) with the region's topography. Maximum TPW and sea-level pressure values were recorded in coastal lowlands, while minimum values occurred in the highlands. Based on zoning maps, Hormozgan province can be divided into four regions based on relative humidity: from very dry conditions with less than 20% relative humidity in the highlands to humid areas with over 65% relative humidity along the coast.
Mr Arsalan Mehrvarz, Dr Agil Madadi, Dr Fariba Esfandyari, Mr Masoud Rahimi,
Volume 25, Issue 76 (3-2025)
Abstract
River morphology holds significant importance in the fields of geomorphology and river management and engineering. The marginal sections of rivers have consistently undergone changes in their riverbeds due to various social and economic factors. The Dare Ourt River, located in the Ardabil province, represents a permanent river that has experienced frequent floods and alterations in its channel morphology in recent periods. In this study, the Dare Ourt river was thoroughly analyzed using the Rosegen model at levels one and two. To conduct this study effectively, detaied data such as 1:2000 river topographic maps, hydrometric data, and boundary conditions from the Ardabil Regional Water Authority were collected and utilized. Furthermore, the HEC-RAS hydrodynamic model was employed to extract the primary indices of the Rosegen model with greater accuracy. The outcomes revealed that the majority of the river sections exhibit a C6c type, characterized by an alluvial substrate. Additionally, other dominant types observed within the four examined ranges include B6c, E6b, F6, and D. Field visits also confirmed a transition in the river type from C to F within range 4, which presents challenges for the reconstruction and restoration of the river in type F. As a recommendation, it is advised to implement restrictions to prevent the river from transitioning into type F.
Dr Esmaeil Najafi, Mr Abolfazl Faraji Monfared, Dr Mehdi Ahmadi,
Volume 25, Issue 76 (3-2025)
Abstract
The extent of mountainous and desert areas in Iran has caused the emergence of well-known geomorphological phenomena. Alluvial fans are landforms found in various locations. Identifying and evaluating their impacts can be valuable for natural hazard management and land use planning. In this study an attempt hs been made to evaluate the status of tectonic activities in the south of the slopes of the Kharqan mountain range in the northeast of Hamedan province. Different maps were utilized to examine the development process of alluvial fans and present evidence of tectonic activity, including the Gozal Valley, Karafs, and several smaller alluvial fans. The findings of this study revealed that tectonic activity in the Gozal Valley cone remains active, while the alluvial fans located between the Gozal Valley are inactive. Further evidence in the bed of the Gozal Valley cones suggests tectonic changes caused by fault activity, resulting in the alteration of the riverbed's drainage pattern and subsequent destruction and erosion of the surrounding areas. Additionally, changes in drainage patterns and sediment depth on the surface of alluvial fans can be attributed to tectonic activities within these fans. Geological logs illustrate both prolonged, slow periods and active periods during various geological eras in the study area. Ultimately, tectonic activity initiated with a lengthy, sluggish phase, followed by continued tectonic activities and fluctuations.
Dr Shahrivar Rostaei, Dr Rahim Heydari Chyaneh, Mr Ayoub Zoghi,
Volume 25, Issue 76 (3-2025)
Abstract
The occurrence of earthquakes and the losses and damages caused by it have always imposed a serious threat to the city, residents and assets, so that it has made planners and city managers to provide logical and scientific solutions to make cities safer. Securing cities against earthquakes will not be achieved only by creating strong structures, and we must take steps to reduce urban vulnerability through optimizing urban land use. The purpose of this study is to determine the optimal urban areas for the development of the city with the aim of reducing the vulnerability of Sanandaj. For this purpose, KNN method has been used as a model with relatively high accuracy to evaluate the optimal land use of Sanandaj city with an emphasis on earthquake risk. The obtained model output shows that about 32% of the city area is in optimal condition and district 2 with 42.78% equivalent to 406 hectares and district 4 with 50.85% equivalent to 658 hectares provide an optimal condition for the development of the city, towards reducing urban vulnerability and increasing urban land use optimization. The general condition of the city is not suitable in terms of optimality and the neighborhoods located in districts 1 and 2 are in a very inappropriate condition due to high population and residential density, very poor permeability and low adaptation of land uses. In evaluating the model, the value of the area below the curve is 0.951, which indicates the desirable performance of the model in examining the subject.
Doc. Zahra Ghassabi, Doc. Hoshang Ghaemi, Mr. Ebrahim Mirzaei,
Volume 25, Issue 76 (3-2025)
Abstract
The structure of deep moist convection can be influenced by various factors, including wind shear, available potential energy of convection, relative humidity, and vertical distribution of these variables. Among these factors, wind shear plays a more significant role in the creation of convection. The interaction between large-scale and synoptic-scale processes, along with the adjustment of available potential energy for convection and the presence of convection inhibitors, creates conditions suitable for the development of convection. The large-scale average reduces the convection inhibitor, while even small vertical velocities, such as a few centimeters per second, can have a noticeable impact on the environment's sounding. The presence of potential instability is also considered an important factor in initiating deep moist convection. When the temperature reaches the critical point and the convection inhibitor is removed, moist deep convection begins. If an air parcel rises above the lower stable layer with low relative convective inhibition energy and high relative free convective potential energy, it supports the development of deep moist convection. The initiation of updrafts by warm air masses and the subsequent development of convection depend on parameters like vertical wind shear and the inversion cap of the environment, among others. Large-scale convective systems can be triggered with less forcing due to the significant uplift of the air mass from the surface to the convection level along the front.
Mr Meysam Zekavat, Dr Mansoure Tahbaz, Dr Mohammad Reza Hafezi,
Volume 25, Issue 76 (3-2025)
Abstract
Buildings are the primary consumers of energy in the country, accounting for approximately 30-50% of total energy consumption. In our country, around 33% of energy is allocated to residential, commercial, and public buildings. The objective of this study is to examine the impact of a building's orientation on its energy consumption. The research is focused on the common 4 and 5-story residential buildings in District 5 of Tehran, specifically on Ferdous Sharq Blvd. The research adopts a descriptive-analytical methodology based on both organizational and field data collection. Six similar residential blocks in different lighting positions were selected to gather data. These blocks share identical characteristics in terms of land area, infrastructure area, number of floors, heating and cooling systems, and other factors. The only distinction among them is their location within a passage. Subsequently, Design Builder software was employed to simulate and compare their energy consumption. The findings of the research reveal that the average energy consumption, with a precision of 98%, for the northern blocks is 7,261 kilowatt hours per square meter per year, while for the southern blocks it is 11,247 kilowatt hours per square meter per year, and for the overall blocks it is 5,254 kilowatt hours per square meter per year. This is approximately three times the ideal building's energy consumption. The northern blocks consume about 5% more energy than the southern blocks. A block that receives light from three sides (north, south, and west) consumes about 11% more energy than the average, whereas a block that receives light from two sides (north and south) consumes about 5% less energy than the average. The north blocks have an energy label of D, whereas the south blocks, except for the end block that receives light from three sides (north, south, and west), have an energy label of C. Consequently, the south blocks generally demonstrate better energy consumption performance.
Dr Hafez Mahdnejad, Dr Ahmad Zanganeh,
Volume 25, Issue 76 (3-2025)
Abstract
Innopolis Daedeok is a beacon of scientific excellence and technological innovation, serving as the nerve center of South Korea's research endeavors. By leveraging the presence of esteemed research institutions and universities, this hub has created a fertile ground for commercializing cutting-edge technologies. The research methodology employed is descriptive-analytical and developmental in nature. The findings indicate that Innopolis Daedeok is strategically divided into five distinct regions, spanning 27.7 square kilometers, to achieve its operational objectives. Notably, 11% of South Korea's Ph.D.-level researchers are affiliated with Innopolis Daedeok. Currently, a workforce of 22,000 researchers and employees is engaged in advanced research, with 10% of the country's research workforce concentrated in this hub. The spatial expansion of Innopolis Daedeok has unfolded in four stages: the establishment of the Daedeok Science Town (1973-1993), the creation of innovation (1993-1997), the formation of an innovation cluster (1998-2003), and the growth stage of the innovation cluster (2004 to present). This evolution has enabled Innopolis Daedeok to become a global innovation hub, with a unique triple helix model of government, industry, and academia collaboration. The development and evolution model of Innopolis Daedeok is characterized by three distinct stages: the initial stage (science park model), the development stage (technopolis model), and the maturity stage (innovation cluster model). This model serves as a benchmark for other innovation hubs, highlighting the importance of strategic planning, collaboration, and investment in research and development.
Zeinab Ebrahimighalelani, Dr Javad Khoshhal Dastjerdi, Dr Hojatolah Yazdanpanah,
Volume 25, Issue 77 (6-2025)
Abstract
plants needs a certain amount of heat at the time of planting and during its growth period, The temperature requirements of the 704 single-cross cultivar of maize in Moghan weather conditions have been found in this study to determine its temperature requirements in its different growing stages in order to investigate the feasibility of its planting in the north west regions of Iran. Daily weather statistics presenting the minimum, maximum and average temperature of 51 Synoptic stations from Meteorological Organization of Iran have been used in this study, their statistical periods range from 1 to 30 years (1365-1395), the statistics and information about 5 main phenology stages of 704 single-cross variety maize which are recorded continually in Agricultural Weather Service of Moghan station in Pars Abad from 1390 to 1391 are provided. Then the 15-day averages from April 21st to July 22nd is obtained. The relationship between the temperature and the height in the linear regression is calculated .Map of heat supply date for seed sowing in all stations from the first half of May was drawn in the GIS. The plant collective growth degree days and the number of days in every phenology phase are calculated for all of the stations and the related maps are plotted.Then,the final map plotted by combining the layers thermal, height, slope and land use in the study area. The results of this study only 27.6% of the study area is able of maize cultivating.
Jalil Badamfirooz, Leyla Sharifi,
Volume 25, Issue 77 (6-2025)
Abstract
By evaluating the functions and ecosystem services of protected areas, it is possible to help planners and decision makers of land management and sustainable development in the region and the country. The present study specifically assesses water and soil resources in the Gando Protected Area and the economic valuation of these services. In order to model the ecosystem services of water balance, soil protection and water quality, a hydrological model -WWPSS- based on RS data was used. The simulation was performed using a series of one-degree square meters (one hectare) on a monthly scale. In order to evaluate the economy, the Invest model and the alternative cost method were used. The results showed that the total water produced in this region is 401,205,344 m3 per year. Also, the minimum, maximum and average water budget of all three are negative and are equal to -1492.76, -38.04 and -639.24 mm per year, respectively, which indicates the lack of rainfall and the intensity of evapotranspiration in this region. The average potential of surface water pollution is 4.5% and this area prevents erosion of 2 tons per hectare per year. The real economic value of water production and soil protection in 2019 with inflation reform of 20.18%, 67.54 and 2729.65 billion rials, respectively, is estimated. Three scenarios with discount rates (combined) of 8, 12 and 15% in 5, 10, 15- and 30-year periods were used to determine the economic value of the functions of these resources. The results showed that for example; With a discount rate of 15% and over a period of 30 years, the economic value of water production and soil protection will reach 4471.82 and 180.730 billion rials, respectively. totally, the economic value of water production and soil protection is 0.35 and 14.17% of the total value of the region.
