京津走廊麦田蒸散及其与地下水位变化关系研究_舒云巧.pdfVIP

14 3 Vol.14 　No.3 2 0 0 6 7 - July, 　2006 Chinese Journ l of Eco Agriculture 京津走廊麦田蒸散及其与地下水位变化关系研究＊ ＊＊ 舒云巧 陈素英　雷玉平　郑　力 (　　050021) - 　　利用区域遥感模型rGIS ET 分析1992 年4 月至200 1 年4 月京津走廊麦田蒸散及其与地下水位变化结 表明, 同一县内麦田蒸散量空间变异明显, 10 年来麦田耗水呈减少趋势, 但由于补给滞缓性等原因地下水位持续下 降。且地下水位的季节变化和冬小麦用水密切相关, 蒸散量的空间变化可间接反映地下水位采水变化。遥感技术 可能为较准确估算小单位地下水用水量提供依据。 　遥感　蒸散　冬小麦　地下水 - The relationship between evapotranspiration inwheat field and the groundwater level in Beijing Tianjin Corridor.SHU - - - Yun Qi o, CHEN Su Ying, LEI Yu Ping, ZHENG Li (Center for Agricultur l Resources Rese rch, Institute of Genetics nd Development l Biology, Chinese Ac demy of Sciences, Shiji zhu ng 050021, Chin ), CJ EA, 2006, 14 (3):71 ～74 - Abstract　By using the region l ev potr nspir tion (ET )model, rGIS ET, the rel tionship between ev potr nspir tion in - w he t field nd the ground w ter level in Beijing Ti njin Corridor in April from 1992 to 200 1 w s n lyzed.The results show th t the sp ci l v ri tions of ET in county re signific nt, the w ter consumption of whe t field trends to reduce in recent 10y e rs, but the groundw ter level sust in blly decre ses bec use the supply is slowly .The se son l ch nge of groundw ter level is closely rel ted to the w ter used by w inter w he t, the sp ci l ch nge of ET m y indirectly reflect the mount of groundw ter. Key words　Remote sensing, Ev potr nspir tion, Winter w he t, Groundw ter (Received M r.5, 2005;revised April 14, 2005) , 。,,, 200 ～300mm ,, ,。(ET ) , 。,、、、