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.
喀斯特峡谷区干旱灾害下的水资源工程性保障研究——以花江石漠化综合示范区顶坛小流域为例
- Title:
- 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
- 关键词:
- 干旱; Palmer干旱指数; 水资源; 石漠化; 优化配套
- Keywords:
- drought; Palmer drought model index; water resources; karst rocky desertification; optimization matching
- 分类号:
- S423;TV211
- 摘要:
- 选取贵州花江石漠化综合示范区顶坛小流域，采用Palmer干旱指数来确立旱度指标，分析降水量、蒸散量、径流量和土壤有效水分储存量来反映当地的水文情况，提供干旱信息，为干旱的规划、监测和预报提供依据。结果表明，示范区现有水利工程不够科学合理，水利设施不配套，应对干旱极端气候的工程性保障手段不足。干旱会加剧石漠化。根据花江峡谷区地表水资源丰富这一特点，用管路将现有水利工程进行优化配套，建立管网状微型水利系统，并对北盘江这一地表河流的水进行逐级抽提，通过石漠化综合治理工程的实施，减缓地方性工程性缺水，增进水利设施在干旱灾害下的应急调控能力，增进水资源在灾害下的可持续利用性。
- Abstract:
- 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.
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备注/Memo
收稿日期:2012-09-20;改回日期:2012-11-20。
基金项目:喀斯特高原峡谷石漠化综合治理技术与示范（2011BAC09B01）；石漠化及其生态恢复的土壤动物群落效应研究（黔科合J字[2012]2281号）
作者简介:于晨曦(1986-),男,黑龙江齐齐哈尔人,在读硕士,主要从事喀斯特水资源开发利用研究。E-mail:yuchenxi@126.com
通讯作者:陈浒(1965-),男,贵州遵义人,教授,主要研究方向:喀斯特石漠化生态恢复。E-mail:gy_chenhu@163.com