河北省小麦-玉米水足迹区域差异及成因分析  

Regional difference and cause analysis of water footprint of wheat and maize in Hebei province

作　　者：王月英[1,2] 刘科伟 孙贵先[3] WANG Yueying;LIU Kewei;SUN Guixian(College of Urban Environmental Science,Northwest University,Xi’an 710127,China;Shaanxi Institute of Urban and Rural Planning and Design,Xi'an 710021,China;Agriculture and Rural Bureau of Lulong County of Hebei,Luolong 066400,China)

机构地区：[1]西北大学城市与环境学院,陕西西安710027 [2]陕西省城乡规划设计研究院规划设计所,陕西西安710021 [3]河北省卢龙县农业农村局,河北卢龙066400

出　　处：《河北农业大学学报》2020年第1期140-147,共8页Journal of Hebei Agricultural University

基　　金：国家科技支撑计划资助项目(2015BAL01B04);陕西省自然科学基础研究计划(2018JM5109).

摘　　要：为量化河北省主要粮食作物小麦—玉米对水资源的利用情况,基于水足迹理论和量化方法,核算和分析了2001—2015年河北省小麦—玉米生产水足迹时空变化情况和特征,并利用通径分析对小麦—玉米水足迹空间变化影响因素进行研究。结果表明2001—2015年,河北省小麦—玉米单位质量水足迹呈现明显的下降趋势,小麦和玉米单位质量水足迹平均值分别为1210.4 m3/t(绿水16%、蓝水56.1%、灰水27.9%)和1012.1 m3/t(绿水40.3%、蓝水26.5%、灰水33.3%);区域气象条件和农业生产水平的差异性是小麦—玉米空间变化的主要原因,其中气象因子占主导地位,平均风速和降水量对小麦水足迹影响最大,平均气温和日照时数对玉米水足迹影响最大。In order to quantify the utilization of water resources by wheat and maize,which are the main food crops in Hebei province,the spatial and temporal changes and characteristics of wheat-maize production water footprint in Hebei province from 2001 to 2015 were calculated and analyzed based on water footprint theory and quantitative methods.The results of path analysis on the spatial variation of wheat-maize water footprint showed that the water quality of wheat-maize per unit in Hebei province showed a significant downward trend from 2000 to 2015.The average values of water footprint of wheat and maize per unit were 1210.4 m3/t for wheat(16%for green water,56.1%for blue water,27.9%for grey water)and 1012.1 m3/t for maize(40.3%for green water,26.5%for blue water,33.3%for grey water).The regional meteorological conditions and agricultural production level are the main reasons for the spatial change of wheat and maize,and meteorological factors are dominant.Average wind speed and precipitation have the greatest impact on wheat water footprint,and average temperature and sunshine hours have the greatest impact on maize water footprint.

关 键 词：河北省 水足迹 空间差异 通径分析 

分 类 号：S273[农业科学—农业水土工程]