Studies on Water Consumption Characteristics and Crops Rotation Effects in Plateau of Northern Hebei Province

作     者：ZHANG Li-feng, BIAN Xiu-ju and LIU Yu-hua(Hebei Agricultural University, Bonding 071001 ) 

作者机构：Hebei Agricultural University Baoding 071001 

出 版 物：《Agricultural Sciences in China》 (中国农业科学（英文版）)

年 卷 期：2002年第1卷第1期

页      面：76-80页

学科分类：082802[工学-农业水土工程] 08[工学] 0828[工学-农业工程] 09[农学] 0815[工学-水利工程] 0903[农学-农业资源与环境] 

基　　金：the National Key Project Foundation(96-004-04-03) 

主　　题：Rotation Water consumption WUE LER Plateau of north Hebei Province 

摘      要：Experiments were carried out in 1994 - 1998 to study crop rotation and its effects on crop water consumption characteristics of field with sandy chestnut soil in the Plateau of north Hebei Province. Five crops including spring wheat, oat, pea, flax and potato were examined. There was little difference in field water consumption among the crops during the growing season. WUE varied significantly in a range of 1. 347 -11.177kg · ha-1 · mm-1 among crops and 11.44% - 46.66% among previous crops. It was pointed out that the land equivalent ratio (LER) can be used as an index to evaluate the biological effects of crop rotation comprehensively. The 2-4 year crop rotation patterns with higher LER were estimated in the paper.