基于水足迹理论的宁夏水资源安全评价

The Water Resources Security Assessment of Ningxia Based on Water Footprint Theory

基于水足迹理论和计算模型及水资源安全评价指标,以宁夏2012年统计数据为依据,计算了该区2012年的水资源足迹,并对水资源利用现状进行了评价。研究表明:12012年宁夏总的水资源足迹为100.894亿m3,人均水资源足迹为1 558.953m3/人;2农业是宁夏水资源消耗量最大的产业,水资源足迹达到84.715亿m3,占本地生产服务用水量的63.086%;3宁夏水资源匮乏度为93.377%,水资源压力指数为124.280%,水资源利用处于不可持续状态。因此,可通过调整产业结构,转变消费理念和消费结构,从外流域调水和发展虚拟水贸易等方式缓解地区水资源压力,实现区域水资源可持续利用。

The thesis calculates the water footprint of 2012 in Ningxia,and evaluates the current situation of water resources utilization based on water footprint theory,computation model and assessment indicator of water resources security according to the statistical data of 2012.The study shows that：In 2012,the total number of Ningxia＇s water footprint was 100.894×10^8 m^3.And the average number was 1 558.953 m^3 per capita;The largest industry of water consumption was agriculture,whose water footprint reached up to 84.715×10^8 m^3,occupying 63.086% of the total water footprint in Ningxia;The degree of water resources scarcity and water resources stress indicator were 93.377%and 124.280%respectively,which demonstrated the unsustainable state of water use.In response to these circumstances,some measures,such as adjusting the industrial structure,transforming the consumption structure and perception,diverting water from outside basin,developing virtual water trade and the like,should be taken to realize the sustainable utilization of water and ensure the safty of water resources.