辽宁省用水效率影响因素分析

Influencing factors of water utilization efficiency in Liaoning Province

为了向不同地区制定切合实际的水资源管理政策提供理论依据，利用辽宁省14个城市1999-2005年的用水效率数据，以用水效率为因变量，对影响用水效率的因素进行回归分析。结果表明：影响城市用水效率差异的主要因素中，人均GDP、第三产业比重与用水效率呈正相关，而人均水资源量、人均生活用水量与用水效率呈负相关；对经济发展程度不同的地区来说，用水效率的影响因素虽略有不同，但人均GDP是它们共同的影响因素，说明一个地区经济发展水平的高低对地区水资源的利用效率有重要作用。

In order to provide rational theoretical basis to the practicable water resources management policies for different regions,the water utilization efficiency was regarded as the dependent variable,and the regression analysis method was employed to study its influencing factors by use of the data of water utilization efficiency of 14 cities of Liaoning Province from 1999 to 2005.The test results show that there are 4 factors to influence the water utilization efficiency in cities.The relationship among the water utilization efficiency,per-capita GDP and weight of the tertiary industry is in positive correlation,and the relationship among the water utilization efficiency,per-capita water resources amount and per-capita domestic water amount is in negative correlation.For the economic development regions with different levels,the factors for the water utilization efficiency are a bit different,but the per-capita GDP is the commonfactor,indicating that the development level of economy in a region is important to its water utilizaiotn efficiency.