non-linear technique based on fractal method for describing gully-head changes associated with land-use in an arid environment in China
文献类型：期刊论文
| 作者 | Xiaodan Wang（王小丹） ; Xianghao Zhong（钟祥浩） ; Shuzhen Liu（刘淑珍） ; Mai-He Li（李迈和） |
| 刊名 | CATENA
 |
| 出版日期 | 2008 |
| 卷号 | 72期号:1页码:106-112 |
| 关键词 | Fractal curvature |
| 合作状况 | 国际 |
| 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 Longchuan 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 Pτ, ΔPτ = change in the fractal curvature Pτ, ΔD = 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 (Pτ, ΔPτ, ΔD) 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. |
| 语种 | 英语 |
| 公开日期 | 2010-11-03 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2418]  |
| 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） |
| 推荐引用方式 GB/T 7714 | Xiaodan Wang,Xianghao Zhong,Shuzhen Liu,et al. 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 | Xiaodan Wang,Xianghao Zhong,Shuzhen Liu,&Mai-He Li.(2008).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 | Xiaodan Wang,et al."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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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