| 基于GIS的西安市雨水收集潜力估算 |
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| 引用本文： | 宋进喜,宋令勇,何艳芬,马晓兵.基于GIS的西安市雨水收集潜力估算[J].干旱区地理,2009,32(6). |
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| 作者姓名： | 宋进喜 宋令勇 何艳芬 马晓兵 |
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| 作者单位： | 1. 西北大学环境科学系,陕西西安,710127
2. 西国土测绘工程院,陕西西安,710054 |
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| 基金项目： | 国家自然科学基金项目(50609021); 陕西省自然科学研究项目(2003D17)资助 |
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| 摘 要： | 随着城市化进程的加快,城市地表水污染的加重,地下水超量开采引发的一系列问题,城市用水量严重不足,开发利用雨水资源已经成为解决城市缺水问题的一个重要的途径。定量研究城市雨水资源可供收集利用量可为开展城市雨水资源化利用提供理论基础。以西安市绕城高速以内为研究区域,把其汇水面划分为九类,以GIS为工作平台,计算出每种类型汇水面的面积,并确定了各自的径流系数。通过对西安市近45年降雨量的分析,结合降雨总量、理论可收集雨水量和实际可收集雨水量的计算公式,在降水保证率为50%和75%的条件下,估算出西安市绕城高速公路内1年可收集的雨水量分别为1.11×108m3和0.93×108m3,大约相当于西安市2005年用水量11.4×108m3的9.7%和8.1%。
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| 关 键 词： | 西安市 降水 GIS 可收集雨水 |
GIS-based estimation of potential amount of rainwater for utilization in Xi'an City |
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| SONG Jin-xi,SONG Ling-yong,HE Yan-fen,MA Xiao-bing.GIS-based estimation of potential amount of rainwater for utilization in Xi'an City[J].Arid Land Geography,2009,32(6). |
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| Authors: | SONG Jin-xi SONG Ling-yong HE Yan-fen MA Xiao-bing |
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| Institution: | SONG Jin-xi1,SONG Ling-yong1,HE Yan-fen1,MA Xiao-bing2(1 Department of Environmental Sciences,Northwest University,Xi'an 710127,Shaanxi,China,2 Shaanxi Instiute of Surveying and Mapping of Land,Xi'an 710054,China) |
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| Abstract: | With the acceleration of urbanization,surface water has heavily been polluted and groundwater has been over-exploited,the situation of water shortage becomes very serious for most cities in northwest China.Rainwater utilization has been playing a great role in water resource development.Urban rainwater utilization has been caused great attention and well studied by researchers,which has been regarded as the most direct and effective way to supply water resources for urban demand.Xi'an,as the capital of Shaa... |
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| Keywords: | Xi'an City precipitation GIS potential volume of rainwater for utilization |
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