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Assessing the general health of the Fakhran watershed in South Khorasan using the conceptual Pressur-State-Response model
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Hojjat Sahragard   , Hadi Memarian * , Javad Chezgi , Seyed Mohamad Tajbakhsh , Reza Chamani |
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Abstract: (39 Views) |
| Today, the spread of various human and natural factors and the intensification of their negative effects have caused the performance of watersheds to encounter problems and the needs of stakeholders are not properly met. Therefore, this study has attempted to evaluate the health of the Fakhran watershed in South Khorasan and identify the factors affecting it. Accordingly, using the conceptual approach of Pressure-State-Response (PSR) and 11, 9 and 12 criteria in the pressure, state and response indices were determined to determine the health status in different sub-watersheds. As the results showed, the pressure index ranged from 0.43 to 0.83, the state index from 0.33 to 0.65 and the response index from 0.33 to 0.57 in different sub-watersheds. Also, the health index has assigned values between 0.36 and 0.61. In other words, the pressure, state, response, and health indices were placed in the relatively healthy, moderate, moderate, and moderate categories with average values of 0.67, 0.50, 0.47, and 0.54, respectively. In terms of effectiveness, household migration (1.5%) and the ratio of residential areas to watershed area (5%) had the greatest contribution to reducing health, and the ratio of irrigated-garden lands to dry land (4.0%) and the number of water sources (9.0%) had the least impact on health. As the results show, principled decision-making on population control, residential area distribution, and agriculture by local communities and provincial managers can increase the health of the Fakhran watershed and promote the health of sub-watersheds. |
Article number: 7 |
| Keywords: Ecosystems, Monitoring, Destruction, Remote Sensing, Sustainable Management |
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Type of Study: Research |
Subject:
Special
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