| 基于WPI模型的赣江流域水资源贫困评价 |
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| 引用本文： | 曹茜,刘锐.基于WPI模型的赣江流域水资源贫困评价[J].资源科学,2012,34(7):1306-1311. |
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| 作者姓名： | 曹茜 刘锐 |
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| 作者单位： | 1. 北京师范大学,北京,100875
2. 北京师范大学,北京100875 中科宇图资源环境科学研究院,北京100101 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(编号:2008ZX07526-008-05) |
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| 摘 要： | 以流域为单元对水资源贫困水平进行评价,可以为流域的可持续发展提供决策依据。本文以水贫困理论为基础,在调查和分析赣江流域水资源现状的基础上,应用WPI方法,从水资源状况、供水设施状况、资源利用能力、资源使用效率及资源利用对环境状况的影响五个方面选择16个指标,用主成分分析法确定指标权重构建综合指数模型,建立一套流域水资源贫困评价指标体系和评价模型,对赣江流域水资源贫困水平进行评估。评估结果表明,赣江流域水资源贫困状况有所改善,水环境质量呈逐年变好趋势,从水资源管理角度来看,环保投资指数成为影响水资源贫困水平的主要控制因子。
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| 关 键 词： | 水资源 水贫困 主成分分析 赣江流域 GIS WPI模型 |
| 收稿时间： | 2/5/2012 12:00:00 AM |
Assessment of Water Poverty in Ganjiang Basin Based on WPI Model |
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| CAO Qian and LIU Rei.Assessment of Water Poverty in Ganjiang Basin Based on WPI Model[J].Resources Science,2012,34(7):1306-1311. |
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| Authors: | CAO Qian and LIU Rei |
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| Institution: | School of Geography, Beijing Normal University, Beijing 100875, China;School of Geography, Beijing Normal University, Beijing 100875, China;Institute of Resources and Environment Science, MAPUNI, Beijing 100101, China |
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| Abstract: | Water poverty is defined as the lack of water in nature or the capacity to use water, and can be divided into two levels : natural level and eco-social level. With The author treated watershed as a basic unit, this paper has for study to builtd a reasonable water poverty assessment index system, use WPI model and made appropriate modifications based on the watershed situation, which. The assessment of water poverty is decided by multiple ingredients. The new index system includes natural resource, access, capacityital, usage and environment to assess the water poverty in Ganjiang Basin. Among them, natural resource Access sub-system refers to the use of groundwater and surface water resources. The access use sub-system reflects the degree of public access to clean water and water security. The capacity sub-system reflects the impact of socio-economic conditions onto the water industry by, considering all aspects of integrated water management. The usage sub-system reflects the efficient use of water use efficiency in industry, agriculture and other departments and the environment sub-system includes potential pressure suffered by water quality and ecological environment, which reflects the impact of resource utilization on environmental impact of resource utilization. In this paper, weights of the indexes in each sub-system werewere determined by PCA (Principal Component Analysis) method. The theory of WPI was used in Ganjiang Basin and data for analysis were collected from Jiangxi Province Statistic Yearbooks (2008-2010), Jiangxi Province Environment Statistic Yearbooks (2008-2010), Jiangxi Province Environmental Comprehensive Improvement Examination Results (2008-2010), Jiangxi Province National economic and social development Statistic Yearbooks, and field survey results fromin Jiangxi Province Environmental Protection Office. In terms of regional exploratory spatial data analysis, the basin could be classified into three categories. The assessment rResults showed that the situation of water poverty inof Ganjiang Basin wasere better in 2007-2009, but while slightly a little worsereduce in 2009 due to, there are problems in management; the situation in Nanchang city was relatively severer, because of the pressure of population and polluting enterprises, while. Whereas thatat in Xinyu city, Pingxiang city, which are which located in the middle of the basin, wasere better. This coincides with water pollution situation in Ganjiang Basin. The bad water poverty situation sudden fall into a bad situation in Jian city mainly results from, its deep reason is the decrease plummeted of environmental protection investment index and, the pollution control investment, while reducing the environmental protection investment index is the main manipulative indicator for while the growth of the GDP, which further causes water poverty aggravated.Tthe good situation of water poverty in Ganjiang Basin was getting better, and the environmental protection investment index is the main manipulative indicators. Therefore, Tthe government needs to increase investment and effortsstrength in environmental protection, to better protect the environment and control pollution. |
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| Keywords: | Water resource Water poverty WPI PCA Ganjiang Basin GIS |
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