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As basic production and living materials, water resources is essential for social-economic development, and is increasingly becoming the limiting factor of regional economic sustainable development. Naiman County is located in the south edge of Horqin sandy land, which faces great challenge of water resources shortage. In this paper, a case study on the security assessment of water resources is carried out in Naiman County, Inner Mongolia Autonomous Region by selecting 19 indexes to build up the index system of water resources security evaluation under the framework of Driver-Pressure-Status-Impact-Response model. Then with the help of GIS technology, the spatial characteristics of water resource safety is quantitative analyzed by calculating water resource safety index(WRSI). Results show that the water resource status is in bad 作者简介:李向前(1990—),男,天津市大 港人,硕士研究生,主要从事生态安全评价. E-mail:lixq264@nenu.edu.cn *通讯作者:佟志军(1977—),男,辽宁兴城 人,副教授,硕士生导师,主要从事 3S技术 及其在灾害风险评价与应急决策应用与开发 研究. E-mail:gis@nenu.edu.cn condition in Naiman as a whole, and the value of WRSI is significant differences within the region. Relatively low areas are mainly concentrated in the northwest, and relatively high areas are mainly concentrated in the southeast. In general, the safety level of water resources has the ascending trend from northwest to southeast.

Assessment of Water Resources Security in Semi Arid Area based on GIS-A Case Study in Naiman County, Inner Mongolia