[1]YU Chen-xi,CHEN Hu,XIONG Kang-ning.Study on the Sustainable Utilization of Water Resources under the Drought Disaster in Karst Valley Area—A Case Study of Dingtan Watershed in the Huajiang Demonstration Zone[J].Research of Soil and Water Conservation,2013,20(03):305-309.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 03
Page number:
305-309
Column:
Public date:
2013-06-28
- Title:
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Study on the Sustainable Utilization of Water Resources under the Drought Disaster in Karst Valley Area—A Case Study of Dingtan Watershed in the Huajiang Demonstration Zone
- Author(s):
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YU Chen-xi1,2, CHEN Hu1,2, XIONG Kang-ning1,2
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1. Institute of South China Karst, Guizhou Normal University, Guiyang 550001, China;
2. State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China
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- Keywords:
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drought; Palmer drought model index; water resources; karst rocky desertification; optimization matching
- CLC:
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S423;TV211
- DOI:
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- Abstract:
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The wide application of drought model into ecological restoration in drought season provide more reasonable foundation for water resource’s exploration and management.In this article, choose Dingtan small watershed of Huajiang karst rocky desertification integrated management and demonstration area in Guizhou for example and establish drought indexes based on Palmer drought model. And also, the local hydrology condition factors including precipitation, evaporation, runoff volume and soil available water has been analysed, which provide drought information and basis for projecting, monitoring and forecasting. Results indicate that the present water conservancy projects are unreasonable and water conservancy facilities are unfit, which are not enough when extremely drought climate, meanwhile, drought climate will aggravate rocky desertification. According to surface water resource characters in Huajiang gorge areas, assembly optimize the present hydrology projects by use of pipeline, establish pipe-network micro irrigation systems and pump water from Beipan River step by step based on rocky desertification integrated management, which can relieve engineering water shortage. Consequently, enhancing emergency control ability of water conservancy facilities in drought disaster season can improve the usage of water resource forward.