贵州省喀斯特地区水资源现状承载力评价

从水资源现状承载力的角度区分正向指标和负向指标,选取人均年供水量、城镇人均生活用水量、农村人均生活用水量、农田灌溉年用水量、万元工业增加值用水量、人均粮食年产量、年人均GDP、生态环境用水率、森林覆盖率、石漠化面积比重、污径比为评价指标,运用正交投影法对贵州省喀斯特地区水资源现状承载力进行了评价.评价结果表明,贵州省各地区水资源现状承载力从大到小为贵阳市、遵义市、黔东南州、黔南州、铜仁市、黔西南州、六盘水市、安顺市、毕节市.

Assessment of Water Resources Carrying Capacity Status in Karst Areas of Guizhou Province

Indexes of evaluation were divided into positive type and negative type on the basis of current water resources carrying capacity.Some assessmental indexes including per capita water supply,urban per capita water consumption,rural per capita water consumption,irrigative water consumption of cropland,industry water consumption of ten thousand increased value,per capita grain output,per capita GDP,the proportion of environmental water consumption,the proportion of forest distribution,the proportion of rock-desertification area,the ratio of waste water and flow were selected to evaluate current water resources carrying capacity in Karst area of Guizhou province based on orthogonal projection method.The evaluation results showed that the status of water resources carrying capacity of various regions of Guizhou province from large to small was Guiyang city,Zunyi city,Qiandongnan state,Qiannan state,Tongren city,Qianxinan state,Liupanshui region,Anshun city and Bijie city.