hamed eskandari; moslem borji; Mehdi Ghorbani
Abstract
Local initiatives have been defined as specific collective activities without external support or incentives in order to control either ground or surface waters. One of the most important of approaches in water resources management is community-based water management. Social structures of water resources ...
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Local initiatives have been defined as specific collective activities without external support or incentives in order to control either ground or surface waters. One of the most important of approaches in water resources management is community-based water management. Social structures of water resources are one of the aspects of indigenous knowledge in the management of water resources and it is necessary to analyze the social structures associated with it. The main objective of this paper is to identify aspects of indigenous knowledge related to the sustainable water resources management in Roozkin Village - Sarduyeh- Jiroft County. In this study, based on anthropological methods and qualitative approaches, including direct and participatory observation and organized interviews with 32 informed respondents (farmers) was used. In Roozkin Village, a certain social structure governs on the management of water resources in the region dating back more than 100 years. Cooperation in water resources management is considered as fundamental principle in this village and the social roles of Arbab and Zaim are among social initiatives of this village in management of water resources. In this village, 10 associations or local groups have been formed for managing water resources and each group is composed of Arbab and Zaim. In general, it could be noted that indigenous knowledge and local traditions in the village are factors influencing on sustainability of water resources and also it could be concluded that they will be effective in the promotion of socio-ecological resilience in the face of environmental crises such as drought.
Moslem Borji Hassan Gavyar; Hadi Eskandari Dameneh; Hassan Khosravi
Abstract
Nowadays, temperature increase, rainfall decrease and its effect on the time dynamics of carbon fixation cycle still are faced by many uncertainties. Net Primary Production (NPP) is one of the main factors of carbon cycle; precipitation and temperature measurement are known as two useful tools to study ...
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Nowadays, temperature increase, rainfall decrease and its effect on the time dynamics of carbon fixation cycle still are faced by many uncertainties. Net Primary Production (NPP) is one of the main factors of carbon cycle; precipitation and temperature measurement are known as two useful tools to study different ecosystems stability and resilience in terms of climate. Hence, in this study, NPP distribution affected by climate parameters of temperature and precipitation have been investigated in four ecosystems of forests, grassland, irrigated agriculture and rain fed agriculture during the period of 2003-2010. Considering climate conditions of biomes, NPP estimation at regional scale was done based on the NASA Moderate Resolution Imaging Spectroradiometer (MODIS) MOD17 NPP product. The results showed that the regression relation was weak between NPP and rainfall for four studied ecosystems, in the other words, low coefficient between these two variables has caused no justified relationship between them. The regression relation between temperature and NPP in forests, pastures and rain-fed agriculture ecosystems follows quadratic equations with determined coefficient over 0.55. The results of this study show that the forest ecosystem resilience to water and temperature tensions is more than other ecosystems, and irrigated agriculture has the least resilience
