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中国农业科学（英文版）2004，Vol.3Issue(12)：905-913,9.
A Method for Estimation of Wheat Yield Loss Caused by Drought in Northwestern China
A Method for Estimation of Wheat Yield Loss Caused by Drought in Northwestern China
摘要
Abstract
To develop a suitable method for monitoring wheat yield loss caused by drought for dry farming areas in northwestern China, daily ET0 and ETc were calculated using Kc and FAOPM from 1961 to 2000, and wheat evapotranspiration with an interval of 10 days was estimated with soil water balance equation for the mountainous areas in southern Ningxia, China. Actual water consumption and water requirements of wheat during growing season was calculated using soil water balance equation by correcting leakage of soil water and run-off of precipitation every year. A model for estimation of yield loss by drought was established based on crop growth-water consumption function and yield potential. The results show that it is an effective method for monitoring drought and estimating yield loss. This method is suitable for monitoring drought and estimating yield loss of wheat in dry farming areas in northwestern China.关键词
Drought/Monitor/Yield loss estimationKey words
Drought/Monitor/Yield loss estimation引用本文复制引用
LIU Jing,WANG Lian-xi,MA Li-wen,WU Wan-li,LIU Yu-lan,SUN Yin-chuan..A Method for Estimation of Wheat Yield Loss Caused by Drought in Northwestern China[J].中国农业科学（英文版）,2004,3(12):905-913,9.基金项目
This work was supported by the Science and Technology Department of Ningxia Hui Autonomous Region, China (2003006). （2003006）
