Assessing the Impact of the Implementing the Operation of Land Surface Rainwater Catchments on the Conditions of Pastures (Case Study: Arid and Semi-Arid Pastures of Dehloran Region)
The purpose of this research is identification of the capabilities of drainage basin beneficiaries who make an appropriate environment for the exploitation of natural areas through utilization of past experience. A wide range of pastures of the country are located in the arid and semi-arid regions and their water resource management is more important than that of other regions due to the limitations of drinking water and the fragility of the pasture’s ecosystems in these regions. Thus, it is very important economically and environmentally as one of the important tools for producing wealth in the objectives of resistive economy. Water shortage, excessive water or its inaccessibility in pastures will lead to non-essential use of this highly valuable resource. The current pattern of water consumption is incompatible with the arid climate in Iran. It also creates obstacles for achieving the country’s goals for development goals and makes them difficult to achieve. The only suggested solution for solving this problem is controlling and inhibiting surplus water and floodwaters from rainfalls with the aim of accumulating rainwater in pastures. In this research, the methods used for collecting rainwater include pitting, embankment, terracing, water cisterns and Faroes.The purpose of this research is the assessment of the effect of the operation of rain water catchments on the economic returns of arid and semi-arid regions along with optimal productivity of pastures in order to implement the aims of the objectives of resistive economy in natural resources sector. This assessment is conducted by using two methods of internal return rate (IRR) and benefit-cost ratio (BCR). The results showed that according to the project’s profitability (2.04 percent) and internal return rate (0.63 percent), the obtained BCR index is larger than one. Therefore, implementation of the project is justified and it brings high income for ranchers living near the project area. According to the obtained results, the reason is 60 percent due to increased production by the use of corrective actions and 35 percent due to the protection which indicates the positive impact of different corrective actions on vegetation and pastures soil.
Iranian Journal of Rainwater Catchment Systems, Volume:3 Issue: 1, 2015
57 - 64  
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