نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشگاه زابل
2 استاد گروه زراعت دانشکده کشاورزی، دانشگاه زابل
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Objectives: Sistan, as one of the arid regions highly vulnerable to climate change, requires sustainable management of water and soil resources. Therefore, assessing the sustainability of agricultural systems in this region is crucial. The main objective of this research is to evaluate the efficiency and ecological sustainability of a wide range of crops in Zahak and Hirmand counties as examples of arid regions in the country.
Materials and Methods: For this research, data related to the inputs and outputs of agricultural production systems were collected through interviews with farmers and meteorological data. Subsequently, using emergy analysis, all system flows were converted to emergy units. Finally, by calculating emergy footprint indicators, the ecological sustainability of agricultural systems was evaluated.
Results: The results showed that wheat and alfalfa systems, respectively, with 7.28E+08 and 2.87E+10 global hectares per year, had the highest ecological capacity in Zahak and Hirmand counties. However, the analysis of carrying capacity and emergy footprint indicated that Zahak is in a surplus ecological state, while Hirmand is in a deficit state. These findings indicate that Zahak has a greater capacity to support its current agricultural activities, while Hirmand is under more pressure from natural resources and is at risk of environmental degradation.
Conclusion: This research demonstrated that emergy analysis is an effective tool for assessing the sustainability of agricultural systems in arid and semi-arid regions. The results of this study can serve as a baseline for future studies and monitoring changes in the sustainability of agricultural systems.
کلیدواژهها [English]
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