Arid
DOI10.1007/s12665-013-2476-y
Soil-hydrological properties response to grazing exclusion in a steppe grassland of the Loess Plateau
Wu, Tie-Niu1,2; Wu, Gao-Lin1,3,4; Wang, Dong1,3,4; Shi, Zhi-Hua1
通讯作者Shi, Zhi-Hua
来源期刊ENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
EISSN1866-6299
出版年2014
卷号71期号:2页码:745-752
英文摘要

Soil-water characteristics are necessary for water quality monitoring, solute migration and plant growth. Soil-water characteristic curve (SWCC) is a relationship between suction and water content or degree of saturation. However, little information is available concerning the impacts of grazing exclusion management on soil-water characteristics. Here, the soil-water characteristics of grasslands, which were excluded grazing for 5 (GE5) and 15 years (GE15), were studied. The saturated hydraulic conductivity (K (s)), SWCC, particle composition, field capacity and some other indexes were determined. Results showed that the clay content and K (s) of grassland soil were higher for GE15 than GE5. For both treatments, in low suction condition (a parts per thousand currency sign100 kPa), the water holding capacity of 0-10 cm soil was the best. Water holding capacity of topsoil decreased gradually with the increasing of suction, and it reached the strongest when the suction reached 600 kPa. In all soil water suction, the water holding capacity of subsoil was the weakest. The van Genuchten expression was applicable for most of the samples, except 20-30 cm of GE5 and 10-20 cm of GE15. Dual porosity equation was applicable for all the samples. The soil-water capability and soil structure of which was fenced for 15 years is superior to that of 5 years. This study suggests that the enclosure management improved the soil structure and soil-water capability.


英文关键词Grazing exclusion Arid-grassland Soil-water characteristic curve The Loess Plateau
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000329996200022
WOS关键词HYDRAULIC CONDUCTIVITY ; WATER CHARACTERISTICS ; LIVESTOCK EXCLUSION ; CHINESE LOESS ; CENTRIFUGE ; MANAGEMENT ; ORIGIN ; AREAS
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
来源机构西北农林科技大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181821
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China;
2.Shaoyang Univ, Urban Construct Dept, Shaoyang 422000, Hunan, Peoples R China;
3.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China;
4.Minist Water Resource, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Wu, Tie-Niu,Wu, Gao-Lin,Wang, Dong,et al. Soil-hydrological properties response to grazing exclusion in a steppe grassland of the Loess Plateau[J]. 西北农林科技大学,2014,71(2):745-752.
APA Wu, Tie-Niu,Wu, Gao-Lin,Wang, Dong,&Shi, Zhi-Hua.(2014).Soil-hydrological properties response to grazing exclusion in a steppe grassland of the Loess Plateau.ENVIRONMENTAL EARTH SCIENCES,71(2),745-752.
MLA Wu, Tie-Niu,et al."Soil-hydrological properties response to grazing exclusion in a steppe grassland of the Loess Plateau".ENVIRONMENTAL EARTH SCIENCES 71.2(2014):745-752.
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