| 重庆市岩溶区县土地利用景观破碎化及土壤侵蚀影响评价 |
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| 引用本文： | 彭月,王建力,魏虹,李清.重庆市岩溶区县土地利用景观破碎化及土壤侵蚀影响评价[J].中国岩溶,2008,27(3):246-254. |
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| 作者姓名： | 彭月 王建力 魏虹 李清 |
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| 作者单位： | 1. 西南大学地理科学学院,重庆,400715;三峡库区生态环境教育部重点实验室,重庆,400715
2. 西南大学生命科学学院,重庆,400715;三峡库区生态环境教育部重点实验室,重庆,400715 |
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| 基金项目： | 重庆市院士基金专项，中国博士后科学基金 |
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| 摘 要： | 根据重庆岩溶区县土地利用景观破碎情况,采用双向指示种分析法和除趋势典范对应分析法对研究区县及各土地利用类型进行分类和排序,揭示其空间分布的景观生态学意义及土壤侵蚀对土地利用景观破碎化的影响.根据分析结果,可将研究区22种土地利用类型分为未利用地、平原耕地、山地耕地和灌草地4大类;可将研究区25个区县样方可分为低脆弱剧烈破碎区;低脆弱极强破碎区;低脆弱强破碎区,中脆弱中强破碎区,重脆弱中破碎区;重脆弱轻破碎区;中脆弱微破碎区7个样方群,空间上它们分属于渝东部、渝中部和渝西部3个区域,其土壤侵蚀性从东往西逐渐减弱.除趋势典范对应分析结果表明,较强的土壤侵蚀会加剧土地利用景观的破碎化,加剧破碎化的强度同土壤侵蚀等级呈现出相反的趋势.
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| 关 键 词： | 岩溶 土地利用 景观破碎化 生态脆弱度 土壤侵蚀 重庆市 |
Estimation on the effect of soil erosion and land-use landscape fragmentation in Chongqing karst area |
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| PENG Yue,WANG Jian-li,WEI Hong and LI Qing.Estimation on the effect of soil erosion and land-use landscape fragmentation in Chongqing karst area[J].Carsologica Sinica,2008,27(3):246-254. |
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| Authors: | PENG Yue WANG Jian-li WEI Hong and LI Qing |
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| Affiliation: | 1. School of Geography Science, Southwest China University 2. School of Life Science, Southwest China University 3. Key Laboratory of Eco-Envi ronments in Three Gorges Reservoir Region,1. School of Geography Science, Southwest China University 2. School of Life Science, Southwest China University 3. Key Laboratory of Eco-Envi ronments in Three Gorges Reservoir Region,1. School of Geography Science, Southwest China University 2. School of Life Science, Southwest China University 3. Key Laboratory of Eco-Envi ronments in Three Gorges Reservoir Region and 1. School of Geography Science, Southwest China University 2. School of Life Science, Southwest China University 3. Key Laboratory of Eco-Envi ronments in Three Gorges Reservoir Region |
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| Abstract: | |
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| Keywords: | karst land-use landscape fragmentation eco-fragility soil erosion Chongqing city |
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