Distribution of Shrubland and Grassland Soil Erodibility on the Loess Plateau

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Distribution of Shrubland and Grassland Soil Erodibility on the Loess Plateau
	Zhang, Xiao; Zhao, Wenwu; Wang, Lixin; Liu, Yuanxin; Feng, Qiang; Fang, Xuening; Liu, Yue
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
	2018-06-01
卷号	15 期号:6 页码:-
关键词	soil erodibility models shrubland grassland Loess Plateau
ISSN号	1660-4601
文献子类	Article
英文摘要	Soil erosion is one of the most severe problems facing environments and has increased throughout the 20th century. Soil erodibility (K-factor) is one of the important indicators of land degradation, and many models have been used to estimate K values. Although soil erodibility has been estimated, the comparison of different models and their usage at a regional scale and, in particular, for different land use types, need more research. Four of the most widely distributed land use types were selected to analyze, including introduced and natural grassland, as well as introduced and natural shrubland. Soil particle size, soil organic matter and other relevant soil properties were measured to estimate soil erodibility in the Loess Plateau. The results show that: (1) the erosion productivity impact calculator (EPIC) model and SHIRAZI model are both suitable for the Loess Plateau, while the SHIRAZI model has the advantage of fewer parameters; (2) introduced grassland has better ability to protect both the 0-5 cm soils and 5-20 cm soils, while the differences between introduced and natural shrubland are not obvious at a catchment scale; (3) the K values of introduced grassland, natural grassland, introduced shrubland and natural shrubland in the 0-5 cm layer vary from 0.008 to 0.037, 0.031 to 0.046, 0.012 to 0.041 and 0.008 to 0.045 (thm(2)h/(MJmmhm(2))), while the values vary from 0.009 to 0.039, 0.032 to 0.046, 0.012 to 0.042 and 0.008 to 0.048 (thm(2)h/(MJmmhm(2))) in the 5-20 cm layer. The areas with a mean multiyear precipitation of 370-440 mm are the most important places for vegetation restoration construction management at a regional scale. A comprehensive balance between water conservation and soil conservation is needed and important when selecting the species used to vegetation restoration. This study provides suggestions for ecological restoration and provides a case study for the estimate of soil erodibility in arid and semiarid areas.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40513]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Xiao,Zhao, Wenwu,Wang, Lixin,et al. Distribution of Shrubland and Grassland Soil Erodibility on the Loess Plateau[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2018,15(6):-.
APA	Zhang, Xiao.,Zhao, Wenwu.,Wang, Lixin.,Liu, Yuanxin.,Feng, Qiang.,...&Liu, Yue.(2018).Distribution of Shrubland and Grassland Soil Erodibility on the Loess Plateau.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,15(6),-.
MLA	Zhang, Xiao,et al."Distribution of Shrubland and Grassland Soil Erodibility on the Loess Plateau".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 15.6(2018):-.