Streamflow and soil moisture of agroforestry and grass watersheds in hilly area

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）

	Streamflow and soil moisture of agroforestry and grass watersheds in hilly area
	Liu, GC1 ; Tian, GL 2; Shu, DC 3; Lin, SY 3; Liu, SZ 1
刊名	PEDOSPHERE
	2004-05-01
卷号	14 期号:2 页码:263-268
关键词	agroforestry soil moisture streamflow
ISSN号	1002-0160
通讯作者	Liu GC
合作状况	国际
英文摘要	A study was conducted in a hilly area of Sichuan Province, Southwestern China, to compare the streamflow and soil moisture in two upland watersheds with different land use patterns. One was an agroforestry watershed, which consisted mainly of trees with alder (Alnus cremastogyne Burkill) and cypress (Cupressus funebris Endl.) planted in belts or strips with a coverage of about 46%, and the other was a grassland primarily composed of lalang grass (Imperata cylindrica var. major (Nees) C. E. Hubb.), filamentary clematis (Clematis filamentosa Dunn) and common eulaliopsis (Eulatiopsis binata (Retz.) C. E. Hubb) with a coverage of about 44%. Streamflow measurement with a hydrograph established at the watershed outlet showed that the average annual streamflow per 100 mm rainfall from 1983 to 1992 was 0.36 and 1.08 L s(-1) km(-2) for the agroforestry watershed and the grass watershed, respectively. This showed that the streamflow of the agroforestry watershed was reduced by 67% when compared to that of the grass watershed. The peak average monthly streamflow in the agroforestry watershed was over 5 times lower than that of the grass watershed and lagged by one month. In addition, the peak streamflow during a typical rainfall event of 38.3 mm in August 1986 was 37% lower in the agroforestry watershed than in the grass watershed. Results of the moisture contents of the soil samples from 3 slope locations (upper, middle and lower slopes) indicated that the agroforestry watershed maintained generally higher soil moisture contents than the grass watershed within 0-20 and 20-80 cm soil depths for the upper slope, especially for the period from May through July. For the other (middle and lower) slopes, soil moisture contents within 20-80 cm depth in the agroforestry watershed was generally lower than those in the grass watershed, particularly in September, revealing that water consumption by trees took place mainly below the plow layer. Therefore, agroforestry land use types might offer a complimentary model for tree-annual crop water utilization.
学科主题	S152
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Soil Science
研究领域[WOS]	Agriculture
关键词[WOS]	CHINA ; CONSERVATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000220909200019
公开日期	2010-11-15
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/2543]
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
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Georgia, Inst Ecol, Athens, GA 30602 USA 3.Sichuan Univ, Chengdu 610015, Peoples R China
推荐引用方式 GB/T 7714	Liu, GC,Tian, GL,Shu, DC,et al. Streamflow and soil moisture of agroforestry and grass watersheds in hilly area[J]. PEDOSPHERE,2004,14(2):263-268.
APA	Liu, GC,Tian, GL,Shu, DC,Lin, SY,&Liu, SZ.(2004).Streamflow and soil moisture of agroforestry and grass watersheds in hilly area.PEDOSPHERE,14(2),263-268.
MLA	Liu, GC,et al."Streamflow and soil moisture of agroforestry and grass watersheds in hilly area".PEDOSPHERE 14.2(2004):263-268.