A non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China

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）

	A non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China
	Wang, Xiaodan1,2 ; Zhong, Xianghao1,2 ; Liu, Shuzhen 1,2; Li, Mai-He 1,2,3
刊名	CATENA
	2008
卷号	72 期号:1 页码:106-112
关键词	fractal curvature gully development gully head land use morphology
ISSN号	0341-8162
通讯作者	Wang, Xiaodan
英文摘要	Only few studies have focused on quantifying and/or modeling changes in gully-head shape. The present paper proposed a non-linear technique based on fractal method for describing gully-head changes quantitatively, and carried out a case study in the Yuanmou Basin in the Lomachman River Valley, Yunnan Province, southwest China. Seventy-seven gullies under 5 different land-uses were investigated in 1998 and again in 2002. For the study period, the gully-head retreat rate in different land-uses showed a decreasing order BL (bare land)> FL (farmland for only crops)> OC (mixture of orchards and crops)> FG (combination of forest and grass)> FSG (combination of forest, shrubs and grass). Correspondingly, the three proposed fractal characteristics (the fractal curvature P-iota, Delta P-iota,=change in the fractal curvature P-iota, Delta D=change in the fractal dimension D) of the gully-heads followed the same order BL > FL > OC > FG > FSG, also. These findings suggested that the three parameters (P-iota, Delta P-iota, Delta D) proposed can sensitively reflect the gully-head changes associated with land-use, and may be used as feasible parameters for understanding and predicting gully development under land-use change and global change. 0 2007 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
研究领域[WOS]	Geology ; Agriculture ; Water Resources
关键词[WOS]	SOIL-EROSION ; MEDITERRANEAN ENVIRONMENTS ; GLOBAL CHANGE ; SEDIMENT ; MODELS ; WATER ; DIMENSIONS ; TILLAGE ; SPAIN
收录类别	SCI
语种	英语
WOS记录号	WOS:000251296300011
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/10531]
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_山地表生过程与生态调控重点实验室中国科学院水利部成都山地灾害与环境研究所
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China 3.Swiss Fed Inst Forest Snow & Landscape Res, WSL, CH-8903 Birmensdorf, Switzerland
推荐引用方式 GB/T 7714	Wang, Xiaodan,Zhong, Xianghao,Liu, Shuzhen,et al. A non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China[J]. CATENA,2008,72(1):106-112.
APA	Wang, Xiaodan,Zhong, Xianghao,Liu, Shuzhen,&Li, Mai-He.(2008).A non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China.CATENA,72(1),106-112.
MLA	Wang, Xiaodan,et al."A non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China".CATENA 72.1(2008):106-112.