| 华北平原灌溉需水量时空分布及驱动因素 |
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| 引用本文： | 马林,杨艳敏,杨永辉,肖登攀,毕少杰.华北平原灌溉需水量时空分布及驱动因素[J].遥感学报,2011,15(2):324-339. |
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| 作者姓名： | 马林 杨艳敏 杨永辉 肖登攀 毕少杰 |
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| 作者单位： | 1. 中国科学院,农业水资源重点实验室/河北省节水农业重点实验室,中国科学院,遗传与发育生物学研究所农业资源研究中心,河北,石家庄,050021;中国科学院,研究生院,北京,100049
2. 中国科学院,农业水资源重点实验室/河北省节水农业重点实验室,中国科学院,遗传与发育生物学研究所农业资源研究中心,河北,石家庄,050021 |
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| 基金项目： | 中国科学院重大子课题海河流域治理工程生态环境效应遥感监测与评估（编号：KZCX1-YW-08-03-04）；国际科技合作项目南水
北调受水区水资源管理与农业面源污染控制技术研究（编号：2009DFA21690） |
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| 摘 要： | 采用华北平原14个气象站点2002年-2007年的降水资料、76个站点的0-80 cm厚度的土壤参数以及ETWatch系统计算的蒸散发量数据,运用水分平衡原理计算了灌溉需水量的空间分布;利用相关及多元逐步回归分析方法,定量分析了研究区灌溉需水量的主要驱动因素.结果表明:从山前平原到滨海平原,多年平均灌溉需水量分别为28...
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| 关 键 词： | 华北平原 ETWatch 蒸散发 灌溉需水量 多元逐步回归 驱动因子 |
| 收稿时间： | 8/11/2010 9:59:29 AM |
| 修稿时间： | 8/11/2010 9:59:29 AM |
The distribution and driving factors of irrigation water requirements in
the North China Plain |
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| MA Lin,YANG Yanmin,YANG Yonghui,XIAO Dengpan and BI Shaojie.The distribution and driving factors of irrigation water requirements in
the North China Plain[J].Journal of Remote Sensing,2011,15(2):324-339. |
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| Authors: | MA Lin YANG Yanmin YANG Yonghui XIAO Dengpan and BI Shaojie |
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| Institution: | Center for Agriculture Resource Research, Institute Genetic and Developmental Biology, CAS |
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| Abstract: | This study analyzes the spatial and temporal distribution of irrigation water requirement in North China Plain using soil water balance, precipitation and evapotranspiration. The soil parameters are taken from 76 sites, precipitation data from 14 meteorological stations and evapotranspiration estimated by ETWatch model for the period 2002-2007. The study further analyzes the quantitatively relationships among irrigation water requirement, precipitation and cultivated crop-area using multiple regression correlation analysis. The results show an increasing irrigation water requirement from the coastal to the piedmont regions of the study area. Annual average irrigation water requirements are respectively 172 mm, 238 mm, 282 mm in the Taihang Mountain piedmont, the middle plain and the coastal region. The main driving factors of irrigation water requirement are precipitation and the cultivated areas of wheat and vegetables. In the study area, precipitation is inversely related with irrigation water requirement. There is a high irrigation water requirement in counties with high cultivated areas of wheat and vegetables. On the other hand, low irrigation water requirement is in counties with high cultivated areas of cotton and soybean. |
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| Keywords: | North China Plain ETWatch evapotranspiration irrigation water requirement multiple regression correlation driving factor |
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