Economy

Common development capitals such as financial (economic) capitals, human capital, physical capital, environmental capital and social capital are considered as key elements in analyzing the potentials of development for people, organizations, societies and even governments. By presenting the concept of social capital, planning strategies are formed by cooperative, communicative and interactional planning along with an approach to people's participation and according to sustainable development framework which concentrate on some indicators such as assessment of social capital, sustainability, flexibility and participation; considering a relative advantage, every district and settlement had freedom of action in putting sustainable development policies into practice in this type of planning. From an international development perspective, social capital has a special position as a part of movement toward development using a "bottom-up" design. Regarding this, the amount of relations and impacts of different types of capitals are studied because of the great importance of different types of capitals especially social capital in rural development. The most important questions in this study are as follow:

This study is conducted by a geographical approach, and a descriptive-analytic method which is based on qualitative and quantitative research method. For determining the sample population size out of 1162 villages with more than 20 households in Khorasan Razavi province, 67 villages were in accordance with all the criteria in table 2. Since these villages are homogenous in three levels, 18 villages (6 villages in each level) from 14 counties were categorized randomly in GIS environment and were chosen by Hawths Analysis Tools. Statistical population encompasses of two grouping including local people of the village and local officials (council members and municipal official). To evaluate the validity and stability of questionnaire, SPSS software has been used. According to this method, by using KMO Test, validity of determinative indicators of social capital, economic capital, human capital, physical capital and environmental capital are 0.071, 0.72, 0.58, 0.64 and 0.57 respectively and for the whole questionnaire, this number is 0.68. According to the results of construct validity test, Cronbach's Alfa coefficient which is obtained from the designed questionnaire for evaluating different types of development capitals in the studied villages is equal to 0.89, therefore, the validity of the questionnaire is confirmed.

Discussion and Conclusion
Today, one of the challenges that rural development face to, is neglecting social capital; recognition of social capital leads to facilitating the process of rural development planning for experts in this field and also it is followed by rural inhabitants' contribution for better implementation of the plans. Regarding to theories and studies in this field, it can be said that different types of development capitals are interrelated and interchangeable. In pursuing development issues especially sustainable rural development, social capital is extremely focused in recent decades. Since many researchers and experts believe that social capital is subordinate to other capitals, this study aims to evaluate the impacts of different types of capitals including economic capital, human capital, environmental capital and physical capital on social capital in rural districts and also it aims to determine their relationships. Results showed a meaningful relation between economic capital, human capital and social capital and a lack of meaningful statistical relation between environmental and physical capital and social capital in studied villages. Moreover, according to the results, coefficient of determination (R2) for economic capital is 0.0906 and coefficient of determination for human capital is 0.176 and these two indicators had the most impact on social capital respectively. In other words, economic capital determines 90.6 % of social capital rate and human capital determines 17.6% of social capital rate in studied villages.

Introduction
Pressure on production resources and the environment is getting higher due to increased population and the need for food, especially in developing countries. Thus, the preservation of natural resources and proper allocation of inputs must be considered in production. Sustainable agriculture suggests a framework for human needs without harming the environment and the proper and optimal use of natural resources while taking into account the rights of future generations. Achieving sustainable agricultural development is possible only if productive factors such as labor and social capital are regarded alongside physical capital. Social capital, a complement to other forms of capital, is a prerequisite for achieving sustainable development, especially in rural communities. Development in rural areas requires the expansion of trust, participation and communication and cohesion among farmers. Social capital is a factor that compensates for the deficiency of other capital inputs and binds other inputs like glue. This study investigated social capital and its role in facilitating and accelerating sustainable development in the villages of the north of Sirjan County. 

 Methodology
This study first evaluated the different dimensions of social capital and sustainable development using different items with the Likert scale. The required data were collected using a questionnaire that validity and reliability were examined among a sample of 195 farmers living in the northern villages of Sirjan County. After calculating the social capital indicator and sustainable development indicator, we investigated the effect of social capital on various dimensions of sustainable agriculture using the Seemingly Unrelated Regression Equations (SURE). 

Discussion and conclusion
According to the results of the research, the social capital indicator was calculated at 0.57 on average, and in terms of dimensions, trust is 0.55, participation and social relations is 0.58 and norms, and social cohesion is 0.60. The economic, social, environmental and institutional dimensions of sustainable development were determined to be 0.44, 0.51, 0.49 and 0.40, respectively. The amount of economic and institutional dimensions is below average, which shows the instability of most of these dimensions among farmers. The other two dimensions are in the middle level. The results of seemingly unrelated regression equations showed that the variables of farmer age, years of experience in agriculture, net income of agriculture, social capital, participation in training courses and type of irrigation system have a positive and statistically significant effect on the economic dimension of sustainable agriculture. Variables of education level, membership in agricultural cooperatives, participation in training classes and social capital have a positive and significant effect on social sustainability, and the variables of type of irrigation system, social capital, net income and education have a significant positive effect on environmental sustainability. In addition, the results showed that farmers with higher education and those who are members of agricultural cooperatives feel more institutionally stable, and these variables have a positive effect on promoting institutional sustainability.
Low efficiency and productivity, the staggering cost of inputs, have left no income for them and have led to poor quality and welfare life for them. This has caused farmer dissatisfaction and has led young people to migrate to cities and work in industrial sectors. As it was observed, the variable of social capital has a positive effect on all four dimensions of stability, but its effect on institutional stability is not statistically significant.
Since the calculated social capital is not at a high level among farmers, besides its significance in sustainability, it is necessary to pay attention to proper planning to improve different dimensions of social capital and eliminate the existing shortcomings to achieve higher levels of sustainability. Effective training courses in rural areas are really important due to the lack of transportation facilities in farmers' living regions. In addition, the presence of skilled professionals and experts will increase the trust in the training among farmers. Creating suitable living facilities and equitable distribution of facilities in villages, improving infrastructure, and access of farmers' children to quality schools. The life expectancy and desire of farmers, especially young people, to stay in the villages will be increased when donors and rich farmers participate in improving living conditions in rural areas. 
 

Introduction
The declining trend of the rural economy, the spread of poverty, and unemployment show that, in practice, the vital development goals in rural areas have failed. The sustainability of the rural economy is a vital corridor to achieving national economic sustainability. Economic sustainability in rural areas means strengthening the foundations of the rural economy to economic security in terms of access to sustainable livelihoods, economic stability, beneficial employment, reliable financial resources and environmentally friendly technology using human resources. Today, it is necessary to pay attention to economic sustainability, considering the challenges facing developing countries. In the current situation, attention to economic sustainability becomes more necessary, given the challenges and bottlenecks that settlements face.
On the other hand, discovering, understanding, and recognizing spatial patterns leads to a better understanding of phenomena and their relationships, actions, and interactions at the space level. The analysis of the elements of geographical space facilitates the mutual understanding of the phenomena and helps to simplify and create order in a vague and complex reality. Based on objective facts, rural settlements in Langaroud County need better economic stability. This issue is evident in cases such as high unemployment, poverty, low agricultural production, etc. Accordingly, the sustainable development of the rural economy is considered a goal to solve the problems and issues of rural areas in the study area. Therefore, this study seeks to answer two questions: First, what spatial pattern does the economic sustainability of rural settlements in Langroud County follow? And second, what is the relationship between the geographical location of rural areas and their level of economic stability?

 Methodology
In terms of purpose, research is part of applied-developmental research. It is also descriptive-analytical in terms of analysis method. Research information was collected through field study and the use of the village questionnaire, and library-documentary studies. SPSS, GIS and Excel software have also been used to analyze the data. The study's statistical population is the Rural managers of more than 20 households in the city of Langroud, with 110 Rural managers in 7 villages, which has been done in total.

Discussion and conclusion
According to the research findings, in connection with the first purpose of the research (identifying the spatial pattern of economic sustainability of rural settlements in the study city), it was found that the spatial pattern of economic sustainability and its components (justice, stability, welfare), According to the results obtained from the general statistics of G, the statistics of general Moran and also the statistics of G, is random and one of the most important reasons is the randomness of the spatial pattern of the villages of the city, while in the research (2016) ), The spatial model of economic stability has been clustered; In his research, the spatial pattern of the villages was scattered, but the studied features formed a cluster, but in the present study, the spatial pattern of the villages was random, and the studied features were also random. The giver is that the studied villages have not been affected as much as possible by the surrounding villages. Concerning the second goal, namely the difference in geographical location and the level of economic stability of villages, studies have shown that sustainable villages are located in the plains of the city and as the natural and elevation position of villages goes to the foothills, Their economic stability is also reduced due to the recreational conditions of the mountain villages and the lack of easy access to the city, their dispersion, and the low population of these areas. Therefore, the research hypothesis related to the second question is confirmed that there is a difference between the natural and geographical location of villages and their level of economic stability. These results are consistent with the results of the research of Ghadiri Masoom et al. (2010), who concluded that the villages with the highest level of economic stability are located in the plains, like the current study that economically sustainable villages. There are villages located in the plains with large populations that are more extensive, have a natural location and good communication, and the level of job diversity is relatively higher in them.
According to the obtained results, it can be said that, in general, economic stability in the villages of Langroud county is at a weak level. The natural and communication situation of the villages is one of the most important factors that affect their level of economic stability; As the natural position of the villages moves towards the foothills, the level of economic stability decreases compared to other villages located in the plains. The results indicate that among the villages of Langroud county, the distribution of coefficients of economic stability components has been considerable. In other words, in each of the components of economic stability, several specific villages have the highest level of stability. Furthermore, economic stability in components has not occurred between common villages except in very few cases. In this regard, it can be acknowledged that despite some criteria as good economic stability. Other criteria, such as income level, job opportunities, and investments, are low. There were villages that, for example. The level of economic justice is high, and the level of economic stability is low. Therefore, the economic stability of villages has three components and various indicators that achieving the most desirable state requires the alignment and integration of all components and criteria of economic sustainability. Therefore, with a one-dimensional view of this process, we can not expect the desired results. However, it requires a comprehensive view and attention to all economic sustainability components in Langroud county's villages.