土壤水对降水和地表覆盖的响应

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 成都山地所知识仓储（2009年以前）

	土壤水对降水和地表覆盖的响应
	欧国强
刊名	北京林业大学学报
	2005
卷号	27 期号:5 页码:37-41
关键词	土壤水降水覆盖太行山区
其他题名	Response of soil moisture variation to precipitation and mulching measures
通讯作者	张秋英
合作状况	其它
中文摘要	文试图通过坡面径流场试验，对无覆盖、秸秆覆盖和石子覆盖的径流小区内土壤水进行连续定位观测，以期探讨太行山区土壤水对降水和覆盖方式的响应．结果表明，长期干旱条件下，特别是当30cm土层土壤含水量低于20％时，单次降水很难入渗至30cm以下；从响应时间看，在30cm深处，石子覆盖响应最快，秸秆覆盖次之，无覆盖响应最慢；在60cm深处则不同，秸秆覆盖响应最快，石子覆盖次之，无覆盖响应最慢；100cm处石子覆盖土壤水最先增加，而秸秆覆盖则滞后了10h，无覆盖响应最慢；无覆盖处理30cm土壤含水量比石子覆盖平均低0．13cm^3／cm^3，比秸秆覆盖平均低0．07cm^3／cm^3，表明覆盖有利于土壤水的保存．秸秆覆盖对60cm土层入渗的效果比石子好，然而，石子覆盖的保水效果却好于秸秆覆盖．
英文摘要	Response of soil moisture to precipitation and mulching measures was investigated based on the continuous observation informat ion 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 t ime 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 0113 and 0107 cm3Pcm3 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.
分类号	S715.3
资助信息	中国科学院知识创新工程重要方向项目(KZCX3SW323);中国科学院地理科学与资源研究所所长基金(DW862).
语种	中文
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/572]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
推荐引用方式 GB/T 7714	欧国强. 土壤水对降水和地表覆盖的响应[J]. 北京林业大学学报,2005,27(5):37-41.
APA	欧国强.(2005).土壤水对降水和地表覆盖的响应.北京林业大学学报,27(5),37-41.
MLA	欧国强."土壤水对降水和地表覆盖的响应".北京林业大学学报 27.5(2005):37-41.