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| 西南喀斯特峰丛洼地生态环境效应及其危害 | |
| 引用本文： | 邓新辉,吴孔运,蒋忠诚,高利鹏.西南喀斯特峰丛洼地生态环境效应及其危害[J].广西农业科学,2009,40(7):857-863. |
| 作者姓名： | 邓新辉 吴孔运 蒋忠诚 高利鹏 |
| 作者单位： | 1. 湖南工业大学包装与材料工程学院,湖南株洲,412007 2. 陕西省核工业地质局,西安,710024 3. 中国地质科学院岩溶地质研究所,广西桂林,541004 |
| 基金项目： | 湖南省优秀青年基金项目，国家"十一五"科技攻关课题，国家自然科学基金项目 |
| 摘 要： | 采用岩土样分析法、编制TM遥感数据影像图法和野外调查等方法，研究了西南喀斯特典型峰丛洼地的生态效应。结果表明：与其他喀斯特地貌相比，峰丛洼地具有独特的生态环境特征，主要表现为：峰丛洼地石灰性土壤Ca、Mg的淋溶系数大，酸不溶物含量多，土壤缺乏C层，水土流失严重，植被生长受辐射逆温、日照少、温湿度时空分布不均的限制。在前期工作的基础上，编制了西南喀斯特地区碳酸盐岩分布图、石漠化分布图和峰丛洼地分布图，对这3个图的空间叠加分析发现，石漠化和峰丛洼地分布区是纯灰岩集中出露的地区，峰丛洼地分布区又是石漠化最严重的地区，石漠化是西南喀斯特峰丛洼地生态恶化的典型表现。石漠化已经成为西南喀斯特地区的灾害之源和贫困之源。 |
| 关 键 词： | 峰丛洼地 生态效应 石漠化 |
Eco-environmental effects and deterioration of karst peak-cluster depression in Southwest China |
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| DENG Xin-hui,WU Kong-yun,JIANG Zhong-cheng,GAO Li-peng.Eco-environmental effects and deterioration of karst peak-cluster depression in Southwest China[J].Guangxi Agricultural Sciences,2009,40(7):857-863. | |
| Authors: | DENG Xin-hui WU Kong-yun JIANG Zhong-cheng GAO Li-peng |
| Institution: | 1 Engineering School of Packaging and Materials;Hunan University of Technology;Zhuzhou;Hunnan 412007;China;2 Nuclear Geological Bureau of Shaanxi Province;Xi'an 710024;3 Institute of Karst Geology;Chinese Academy of Geological Sciences;Guilin;Guangxi 541004;China |
| Abstract: | The rock and soil analysis, TM image diagrams from remote sensing data and field investigation were applied to study the ecological effects of typical karst peak-cluster depressions in Southwest China. The results showed that, comparing with other karst types, karst peak-cluster depressions had unique eco-environmental characteristics including high leaching coefficient of Ca and Mg in limestone soil, high content of acid insoluble component, lacking of C (corganic carbon) layer in profile of soil, severe l... |
| Keywords: | karst peak-cluster depression eco-environment effect stony desertification |
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