摘要
对2009—2019年我国主要粮食作物产量和生产消耗虚拟水量进行测算,量化分析伴随主粮贸易虚拟水的流动状况和趋势,在此基础上评估主粮贸易对我国水资源压力的影响方向以及影响程度。结果表明,2009—2019年我国粮食产量和虚拟水消耗量呈上升趋势,同时虚拟水贸易规模也明显扩大,对我国水资源压力有缓解作用,其中大豆的虚拟水贸易影响程度最大。因此,建议根据粮食作物单位质量含水量不同,合理规划粮食作物种植结构,并充分考虑多方面因素的影响后确定进出口规模和结构。
The yield of major food crops and the virtual water consumption in production in China from^(2)009 to 2019 were estimated,and the flow status and trend of virtual water associated with major grain trade were quantitatively analyzed.On this basis,the direction and degree of impact of major grain trade on water resource pressure in China were evaluated.The results showed that China's grain yield and virtual water consumption showed an upward trend during 2009-2019,and the scale of virtual water trade also significantly expanded,which had a alleviating effect on China's water resource pressure,among which soybean virtual water trade had the greatest impact.Therefore,it is suggested that food crop planting structure should be reasonably planned according to different water content per unit mass of food crops,and the scale and structure of import and export should be determined after considering the influence of various factors.
作者
赵一丹
陈红
ZHAO Yi-dan;CHEN Hong(College of Economics and Management,Northeast Forestry University,Harbin,Heilongjiang 150040)
出处
《安徽农业科学》
CAS
2022年第4期69-73,78,共6页
Journal of Anhui Agricultural Sciences
基金
黑龙江省哲学社会科学研究规划项目(21JYB149)
黑龙江省经济社会发展重点研究课题(20209)。
关键词
虚拟水
主粮贸易
水资源压力
可持续性评价
作物生产
Virtual water
Major grain trade
Water resource pressure
Sustainability evaluation
Food crop production
