| SLOPE LITHOLOGIC PROPERTY, SOIL MOISTURE CONDITION AND REVEGETATION IN DRY-HOT VALLEY OF JINSHA RIVER |
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| 作者姓名： | XIONGDong-hong ZHOUHong-yi YANGZhong ZHANGXin-bao |
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| 作者单位： | [1]ChengduInstituteofMountainHazardsandEnvironment,ChineseAcademyofSciences＆MinistryofWaterConservancy,Chengdu610041,P.R.China [2]ChengduInstituteofMountainHazardsandEnvironment,ChineseAcademyofSciences＆MinistryofWaterConservancy,Chengdu610041,P.R.China／／GraduateSchoolofChineseAcademyofScierices,Beijing100039,P.R.China |
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| 基金项目： | Under the auspices of the National Natural Science Foundation of China (No .30470297)and theNationalBasicRe-searchProgram ofChina (973 Program)(No .2003CB415201 ) |
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| 摘 要： | 1IN T R O D U T IO N The dry-hotvalleyisone of the unique physiographic typesinSouthwest China, which ischaracterizedby its dry and hot climate, Savanna-likevegetationand its sharp contrastwith the surrounding landscape units (ZHANG ,1992 ).The dry-hotval…
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| 关 键 词： | 再种植 土壤湿度 干热峡谷 金沙江 岩石性质 |
| 收稿时间： | 5 January 2005 |
Slope lithologic property,soil moisture condition and revegetation in dry-hot valley of Jinsha River |
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| XIONGDong-hong ZHOUHong-yi YANGZhong ZHANGXin-bao.SLOPE LITHOLOGIC PROPERTY, SOIL MOISTURE CONDITION AND REVEGETATION IN DRY-HOT VALLEY OF JINSHA RIVER[J].Chinese Geographical Science,2005,15(2):186-192. |
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| Authors: | Dong-hong Xiong Hong-yi Zhou Zhong Yang Xin-bao Zhang |
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| Institution: | (1) Chengdu Institute of Mountain Hazards and Environment, Chinese Academy of Sciences & Ministry of Water Conservancy, 610041 Chengdu, P. R. China;(2) Graduate School of Chinese Academy of Sciences, 100039 Beijing, P. R. China |
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| Abstract: | The dry-hot valley of the Jinsha River is one of the typical eco-fragile areas in Southwest China, as well as a focus of revegetation study in the upper and middle reaches of the Changjiang River. Due to its extremely dry and hot climate, severely degraded vegetation and the intense soil and water loss, there are extreme difficulties in vegetation restoration in this area and no great breakthrough has ever been achieved on studies of revegetation over the last several decades. Through over ten years' research conducted in the typical areas-the Yuanmou dry-hot valley, the authors found that the lithologic property is one of the crucial factors determining soil moisture conditions and vegetation types in the dry-hot valley, and the rainfall infiltration capability is also one of the key factors affecting the tree growth. Then the revegetation zoning based on different slopes was conducted and revegetation patterns for different zones were proposed. |
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| Keywords: | revegetation lithologic property soil moisture plant growth dry-hot valley Jinsha River |
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