济南市部分农作物产品虚拟水含量的研究

Study on virtual water content of parts agricultural products in Jinan City

基于虚拟水的理论,利用标准彭曼公式和Cropwat软件,对济南市2008年的部分农作物产品虚拟水含量进行了计算分析。结果表明:小麦的虚拟水净进口量为-77477.9×103m3,属于虚拟水出口型作物,稻谷、棉花、豆类和花生果的虚拟水净进口量都是正值,属于虚拟水进口型作物。但总的来说,虚拟水的出口大于进口,这直接危及到济南市的水资源安全。针对这一现状,提出了通过虚拟水贸易和调整农作物种植结构的途径来实现济南市水资源的安全和可持续利用发展。

According to the theory of virtual water,using standard Pengman formula and Cropwat software,the paper calculated and analyzed the virtual water content of part agricultural products in Ji＇nan City in 2008.The results showed that the net importing virtual water quantity for the wheat was-77477.9×103m3,belongs to virtual water export type farm crop,net importing virtual water quantity for the rice valley,cotton,bean and peanut were all positive,they belong to virtual water import type farm crops.But generally speaking,the export of virtual water is more than the import of that which directly endanger the safety of water resources in Ji＇nan City.Aim at the actuality,the paper put forward virtual water trade and adjustment farm crop plant structure to carry out the safety of water resources and sustainable development in Ji＇nan City.