生态与农村环境学报2009，Vol.25Issue(3)：35-38,4.
不同水分处理下农田黑土水分特征
Effect of Water Treatment on Water Regime in Farmland Black Soil
摘要
Abstract
A stationary field experiment was carried out to investigate effect of water treatment on farmland water regime,using a neutron probe.Results show that after a long-term experiment soil water storage in the 0-110 cm soil layer followed an order of suitable water treatment>rainfall treatment>dry treatment with the first two being 23.4% and 12.9%,respectively,higher than the last.During the soybean growing season,soil water storage in all the treatments displayed a trend of seasonal variation,such as declining-rising-declining-rising,which was closely related to rainfall distribution during the season.In terms of moisture consumption by soybean,the three treatments followed a decreasing order of suitable water treatment>rainfall treatment>dry treatment,and their value was 459.4,420.3,and 326.4 mm,respectively.Soybean water consumption varied slightly between treatments at all growth stages,during the period (2008-05-01-2008-06-15) when they were free of the influence of water control,but significantly in the period when they were under the influence of water control.The water-inflow/water-consumption ratio demonstrated that the black soil was quite high in capability of adjusting water regime.Water use efficiency of the dry treatment,the rainfall treatment and the suitable water treatment was 3.9,4.8 and 5.4 kg·hm-2·mm-1,respectively,indicating that irrigation could enhance water use efficiency in normal years in black soil.关键词
水分处理/黑土/农田/土壤水Key words
water treatment/black soil/farmland/soil moisture分类
农业科技引用本文复制引用
邹文秀,韩晓增,李良皓,王守宇,王凤仙..不同水分处理下农田黑土水分特征[J].生态与农村环境学报,2009,25(3):35-38,4.基金项目
中国科学院知识创新工程(KZCX3-SW-NA3-27,KSCX1-YW-09-09) （KZCX3-SW-NA3-27,KSCX1-YW-09-09）
国家重点基础研究发展计划(2005CB121103) （2005CB121103）
