摘要
在冀中南冬小麦生育期内，对麦田土壤2m土体储水量的周年变化规律进行了分析。结果表明：小麦从播种到收获2 m土体总储水量呈显著降低趋势，到小麦收获时2 m土体总储水量减少了134.6 mm；各土层含水量均呈减少趋势，其中0～40 cm土层含水量降幅最大，150 cm 以下土层含水量降幅最小。说明土壤含水量的变化随土层深度的增加而逐渐变小，小麦对150 cm以下土壤水利用较少。
In the middle south of Hebei Province during the growing season of winter wheat , the annual variation of 2 m soil water storage in wheatfield were analyzed.The results showed that 2 m soil total water storage from wheat sowing to harvest was significantly decreased, at wheat harvest stage 2 m soil total water storage reduction of about 134.6 mm.The soil water content of each layer was decreased , the soil water content in the layer of 0-40 cm soil had the largest decline, which below 150 cm layer with minimum water fall.The changes of soil water content gradually reduced with the increase of soil depth, the soil water below 150 cm layer was used less by wheat.
出处
《河北农业科学》
2014年第3期57-59,104,共4页
Journal of Hebei Agricultural Sciences
基金
国家科技支撑计划课题(11149152A)
河北省小麦产业化体系项目
关键词
麦田
土壤水分
含水量
变化规律
Wheatfield
Soil moisture
Water content
Variation
