Response of soil moisture variation to precipitation and mulching measures

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	Response of soil moisture variation to precipitation and mulching measures
	Li Fa-Dong; Song Xian-Fang
	2005
关键词	Agriculture Moisture Precipitation (meteorology) Soils Straw Water conservation
英文摘要	Response of soil moisture to precipitation and mulching measures was investigated based on the continuous observation information in plots with no-mulching, straw-mulching and granule-mulching. The results show that individual rainfall event is difficult to infiltrate into up to 30 cm depth from surface during the dry season, especially when soil moisture is lower than 20% at 30 cm depth. As for the responsive time, at 30 cm, it is the shortest in granule-mulching plot, followed by straw-mulching plot and longest in no-mulching plot. At 60 cm, shortest responsive time is observed in straw-mulching plot and longest in no-mulching. At 100 cm, soil moisture increases first in granule-mulching plot and 10-h delay takes place in straw-mulching plot compared with that of straw-mulching and it's the slowest in no-mulching. The soil moisture at 30 cm depth in no-mulching plot is 0.13 and 0.07 cm³/cm³ lower than those of granule- and straw-mulching. It indicates the mulching measure is good for the storage of soil moisture. Although infiltration ability at 60 cm is more powerful in straw-mulching plot than that in granule-mulching plot, the latter's ability of water conservation is better than the former's.
出处	Beijing Linye Daxue Xuebao/Journal of Beijing Forestry University
卷	27 期:5 页:37-41
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24383]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li Fa-Dong,Song Xian-Fang. Response of soil moisture variation to precipitation and mulching measures. 2005.