To play a certain guidance in the disposition of the water resources and the production distribution of the crops,this text calculates and compares the entropy theory in four provinces of northwest with four provinces in central section.

• 为对水资源在我国各省份的配置以及农作物在各省份的生产布局起一定的指导作用,从虚拟水角度出发,通过分别计算并比较西北4省和中部4省的熵权,可以看出,应该充分发挥熵权大的省份的生产优势;