| Dynamic Mechanisms for Evolution of Mountain Rural Settlements and Soil Conservation in Upper Yangtze River Basin |
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| 作者姓名： | WANG Qing CHEN Yong |
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| 作者单位： | [1]School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China [2]Institute of Environment and Regional Development, Sichuan University, Chengdu 610064, Sichuan, China |
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| 基金项目： | Supported by the Key Social Research Project of Education Ministry （04JZD0010） |
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| 摘 要： | This paper presents the logic relationship between rural settlement reconstruction and soil conservation in the Upper Yangtze River. Firstly, by introducing the concepts of ＂flow＂ and ＂intercepted flow＂, we probe into the dynamic mechanism on interaction between ecological and environmental system, and then point out that the ＂intercepting sites＂ are physical conditions for establishment of human settlements in mountains. Secondly, by using ecological theories, ＂flow＂, ＂source＂, and ＂sink＂, material cycle and energy flow in mountains have been discussed. Thirdly, according to dissipative structure theory and thermodynamic laws, a hypothesis has been proposed that ＂entropy flow＂ is a dynamic force for settlement evolution. Finally, it is argued that a project for soil conservation is set to control and utilize flows so rural settlements can be supported and farmers＇ life improved.
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| 关 键 词： | 土壤保持 长江上游 截流 熵 地面沉降 |
| 文章编号： | 1007-1202（2007）04-0710-05 |
| 收稿时间： | 7 December 2006 |
| 修稿时间： | 2006-12-07 |
Dynamic mechanisms for evolution of mountain rural settlements and soil conservation in Upper Yangtze River basin |
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| WANG Qing CHEN Yong.Dynamic Mechanisms for Evolution of Mountain Rural Settlements and Soil Conservation in Upper Yangtze River Basin[J].Wuhan University Journal of Natural Sciences,2007,12(4):710-714. |
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| Authors: | Wang Qing Chen Yong |
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| Institution: | (1) School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China;(2) Institute of Environment and Regional Development, Sichuan University, Chengdu, 610064, Sichuan, China |
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| Abstract: | This paper presents the logic relationship between rural settlement reconstruction and soil conservation in the Upper Yangtze
River. Firstly, by introducing the concepts of “flow” and “intercepted flow”, we probe into the dynamic mechanism on interaction
between ecological and environmental system, and then point out that the “intercepting sites” are physical conditions for
establishment of human settlements in mountains. Secondly, by using ecological theories, “flow”, “source”, and “sink”, material
cycle and energy flow in mountains have been discussed. Thirdly, according to dissipative structure theory and thermodynamic
laws, a hypothesis has been proposed that “entropy flow” is a dynamic force for settlement evolution. Finally, it is argued
that a project for soil conservation is set to control and utilize flows so rural settlements can be supported and farmers’
life improved.
Biography: WANG Qing(1967–), male, Professor, research direction:regional economics and human geography. |
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| Keywords: | rural settlement entropy soil conservation project intercepted flow |
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