Rainfall infiltration on hilly slopes under various lithology and its effect on tree growth in the dry-hot valley

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）

	Rainfall infiltration on hilly slopes under various lithology and its effect on tree growth in the dry-hot valley
	Yang, Z ; Xiong, DH; Zhou, HY ; Zhang, XB
刊名	SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE
	2003-12-01
卷号	46 期号:S 页码:110-119
关键词	dry-hot valleys lithologic property rainfall infiltration tree growth
ISSN号	1006-9321
通讯作者	YANG Zhong
合作状况	其它
英文摘要	Revegetation is very difficult in dry-hot valleys in China. Rainfall infiltration capability on hilly slopes is one of the key factors determining soil moisture conditions and tree growth in the dry-hot valley. Low rainfall infiltration often results in soil drought on slopes under the dry-hot valleys climate. Rainfall infiltration capability varies greatly with the difference of slope lithologic porosity. The infiltration rates of five lithologic slope-types, Schist Slope, Grit Slope, Gravel Slope, the slightly eroded Mudstone Slope and the intensively eroded Mudstone Slope, are 1.40-8.67, 6.33, 0.69-2.20, 0.6-1.3 and 0.03-0.63 mm/min, respectively. With its viscid compact soil body and low infiltration capability which causes little infiltrating rainfall, mudstone slope can afford little effective supply to soil water and leads to serious drought of soil in dry seasons, resulting in cessation of growth or even wide-spread death of trees due to physiological damage for the excessive deficit of water in dry season and also the low productivity of stands. Hence, it is extremely difficult to restore vegetation on this type of slope. The other four lithologic slope-types, however, with well-developed soil crevice, high infiltration capability and thus more infiltrating rainfall, can afford more available soil water supply and the trees on them can obtain better growth and relatively higher productivity, compared with those on Mudstone Slope. Revegetation in dry-hot valleys is controlled by the soil moisture conditions of different slope-types, and it can be implemented by relying on the dominative life-form plant species, the suitable spatial arrangement of different life-forms of arbor-shrub-herb species, and the establishment of ecological community relationship between vegetation and soil moisture in habits. On the other hand, ground making measures for forestation and the runoff-collecting engineering measures to increase the rainfall infiltration are the major keys of revegetation techniques in dry-hot valleys.
学科主题	P642.22
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
收录类别	SCI
语种	英语
WOS记录号	WOS:000222748100010
公开日期	2010-11-29
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/2654]
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成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Minist Water Resources, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Yang, Z,Xiong, DH,Zhou, HY,et al. Rainfall infiltration on hilly slopes under various lithology and its effect on tree growth in the dry-hot valley[J]. SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE,2003,46(S):110-119.
APA	Yang, Z,Xiong, DH,Zhou, HY,&Zhang, XB.(2003).Rainfall infiltration on hilly slopes under various lithology and its effect on tree growth in the dry-hot valley.SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE,46(S),110-119.
MLA	Yang, Z,et al."Rainfall infiltration on hilly slopes under various lithology and its effect on tree growth in the dry-hot valley".SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE 46.S(2003):110-119.