河北省主要农作物虚拟水含量时空格局分析  

Analysis of Temporal and Spatial Patterns of Virtual Water Content of Main Crops in Hebei Province

作　　者：潘佩佩 苗嘉欣 温佳昱 王晓旭 李林思 张泽浩 PAN Peipei;MIAO Jiaxin;WEN Jiayu;WANG Xiaoxu;LI Linsi;ZHANG Zehao(School of Geographical Sciences,Hebei Normal University,Laboratory of Environmental Evolution and Ecological Construction of Hebei Province,Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change,Hebei Shiiazhuang 050024,China;Beijing Capital Planning and Design Engineering Consulting and Development Limited Company,Beijing 100045,China;Natural Resources and Planning Bureau of Hebei Xiong'an New District Management Committee,Hebei Xiong'an 071800,China)

机构地区：[1]河北师范大学地理科学学院,河北省环境演变与生态建设实验室,河北省环境变化遥感识别技术创新中心,河北石家庄050024 [2]北京市首都规划设计工程咨询开发有限公司,北京100045 [3]河北雄安新区管理委员会自然资源和规划局,河北雄安071800

出　　处：《河北师范大学学报（自然科学版）》2024年第4期325-337,共13页Journal of Hebei Normal University：Natural Science

基　　金：河北省社会科学基金(HB20GL042)。

摘　　要：基于CropWat模型计算河北省1995-2015年主要农作物的虚拟水含量,并分别从省域、区域和县域尺度分析其时空分布格局.研究结果表明:河北省主要农作物需水量总体呈下降趋势,与降水量的变化趋势相反.1995-2015年河北省农作物虚拟水含量最高为棉花,其次为小麦、玉米和蔬菜,4种农作物虚拟水含量总体呈波动降低趋势,其中棉花波动幅度最大,小麦和玉米变化趋势相似,蔬菜变化幅度最小.从空间格局变化看,1995-2015年不同区域主要农作物虚拟水含量变化特征存在差异,整体减少较为明显.县域尺度上虚拟水含量变化均呈减少区多于增加区的特征,且存在高值与低值集聚区.从虚拟水含量视角对农作物耗水量进行分析,可为河北省农业种植结构优化与水土资源可持续利用提供决策依据.Based on CropWat model,the virtual water content of main crops was calculated at provincial,regional and county scales in Hebei province from 1995 to 2015,and the spatial and temporal distribution patterns were analyzed.Results showed that the water requirement of main crops in Hebei province showed decreasing trend,which was opposite to the trend of precipitation.From 1995 to 2015,the virtual water content of cotton was the highest,followed by wheat,corn and vegetables.In general,the virtual water content showed fluctuating downward trend,with cotton having the largest fluctuation,wheat and corn having similar trend,and vegetables having the smallest variation.From the perspective of spatial distribution pattern,there were differences in the change patterns of virtual water content of main crops in different regions from 1995 to 2015,and the decrease was more obvious.At county scale,the variation characteristics of virtual water content showed more decrease areas than increase areas,and there were high and low values aggregation areas.The crop water consumption was analyzed from the perspective of virtual water content in this study,which could provide decision-making basis for the sustainable development of agriculture and water resources in Hebei province.

关 键 词：虚拟水含量 蒸散量 作物需水量 CropWat 

分 类 号：F304[经济管理—产业经济] S51[农业科学—作物学]