金沙江干热河谷元谋盆地冲沟沟头形态学特征研究

doi:10.13249/j.cnki.sgs.2005.01.63

地理科学 ›› 2005, Vol. 25 ›› Issue (1): 63-67.doi: 10.13249/j.cnki.sgs.2005.01.63

金沙江干热河谷元谋盆地冲沟沟头形态学特征研究

王小丹, 钟祥浩, 范建容, 李辉霞

中国科学院、水利部成都山地灾害与环境研究所, 四川成都 610041

收稿日期:2004-01-01 修回日期:2004-05-08 出版日期:2005-01-20 发布日期:2005-01-20
基金资助:
中国科学院、水利部成都山地灾害与环境研究所青年基金资助。

Study on the Morphological Characteristics of the Gully Heads in Yuanmou Basin, Arid River Valley of Jinsha River, China

WANG Xiao-Dan, ZHONG Xiang-Hao, FAN Jian-Rong, LI Hui-Xia

Institute of Mountain Hazards and Environment, Chinese Academy of Science and Ministry of Water Conservancy, Chengdu, Sichuan 610041

Received:2004-01-01 Revised:2004-05-08 Online:2005-01-20 Published:2005-01-20

摘要/Abstract

摘要： 金沙江干热河谷因独特的气候类型——干、热、降水集中,冲沟侵蚀破坏十分严重。从冲沟沟头形态学特征的角度,运用分形几何学理论,以金沙江干热河谷元谋盆地的冲沟为研究对象,对沟头的分形弯曲度和土壤分形特征进行分析,揭示不同土地利用方式下,沟头空间形态、土壤形态与冲沟发育的相关关系及不同沟头形态所反映的自然环境特征差异性,这对研究冲沟的空间格局和动态监测提供了新的思路,对冲沟侵蚀治理,防止土地劣化具重要的理论指导意义。

Abstract: Due to the unique climate characteristics such as arid and concentrated rainfall, gully erosion is very serious in the arid river valley of the Jinsha River. Based on morphological characteristics of gully heads, this paper applied fractal geometrical theory to analyze fractal curvature and fractal dimension of soil particle-size distribution of the gullies investigated, and discovered the correlation between gullies' morphology and development under different land-use patterns. As a result, it could indicate that the difference of natural environmental characteristics reflected by changes of gully morphology and provide a new way for studying spatial structure and monitoring dynamic growth of gullies. In additional, the paper has an important theoretical guiding meaning for controlling gully erosion and preventing land degradation.

中图分类号:

S157.1

王小丹, 钟祥浩, 范建容, 李辉霞. 金沙江干热河谷元谋盆地冲沟沟头形态学特征研究[J]. 地理科学, 2005, 25(1): 63-67.

WANG Xiao-Dan, ZHONG Xiang-Hao, FAN Jian-Rong, LI Hui-Xia. Study on the Morphological Characteristics of the Gully Heads in Yuanmou Basin, Arid River Valley of Jinsha River, China[J]. SCIENTIA GEOGRAPHICA SINICA, 2005, 25(1): 63-67.

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金沙江干热河谷元谋盆地冲沟沟头形态学特征研究

Study on the Morphological Characteristics of the Gully Heads in Yuanmou Basin, Arid River Valley of Jinsha River, China

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