虚拟水理论与黑龙港区域农业用水结构调整的启示

Enlightenment of Virtual Water Theory and Agricultur＇al Water Structure Adjustment in the Heilonggang Region

分析了黑龙港区域沧州市、衡水市水资源现状和供需变化趋势。立足耗水最多的产业一畜牧农业，应用虚拟水理论，对黑龙港区域沧州市、衡水市2005年主要农产品和动物产品的虚拟水含量进行r计算和分析，结果表明：粮食作物所包含的虚拟水总量是当年实体水用水的5．6倍。主要肉蛋奶产品虚拟水含量达到62．911亿m2，是相应实体用水量的19．0倍。据此，提出调整农业产业结构，减少小麦播种面积，缓解水资源短缺压力等措施。

The paper analyzes the current water resources situation and the supply and demand trends of Cangzhou City and Hengshui City in the Heilonggang region. Based on the most wate〉consumption indusiry livestock and agriculture,by the virtual water theory, we calculate and ana [yze the virtual water content of the major agricultural and animal products in Cangzhou and Hengshui. The results show that virtual water con tained in food crops is 5. 6 times of the total water volume in the water entity. The virtual water content of main meats, eggs products reaches to 6. 2911 billion ma, 19 times the corresponding entity water consumption. Accordingly,it proposes the measures as agricultural structure adjustment,to reduce wheat acreage and other measures to ease the pressure of water shortages.