TILLAGE EFFECTS ON THE SPATIAL AND TEMPORAL VARIATIONS OF SOIL-WATER

被引：62

作者：

ZHAI, R ^{[1
]}

KACHANOSKI, RG ^{[1
]}

VORONEY, RP ^{[1
]}

机构：

[1] UNIV GUELPH, DEP LAND RESOURCE SCI, GUELPH N1G 2W1, ONTARIO, CANADA

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 01期

关键词：

D O I：

10.2136/sssaj1990.03615995005400010029x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

We examine the effect of tillage on the spatial and temporal variability of soil water content of the surface layer (0-0.2 m) under a corn crop. The plots are located near Guelph, ON, Canada, on a Typic Hapludalf (loam) soil. Soil water recharge from rainfall was distributed systematically in space because of canopy interception and subsequent stemflow. Crop residue on the soil surface of the no-till treatments intercepted a significant amount of rainfall and reduced soil water recharge by 14 and 35% in the SNT and LNT treatments, respectively. The tillage treatments affected the temporal dependence of the spatial variability of soil water and the spatial dependence of the temporal variability. -from Authors

引用

页码：186 / 192

页数：7

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