| 广西弄拉森林植被的喀斯特效应 |
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| 引用本文： | 邓新辉,蒋忠诚.广西弄拉森林植被的喀斯特效应[J].地球与环境,2007,35(2):128-133. |
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| 作者姓名： | 邓新辉 蒋忠诚 |
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| 作者单位： | 中国地质科学院岩溶地质研究所,广西,桂林,541004;湖南工业大学,湖南,株洲,412000;广西师范大学生命科学院,广西,桂林,541004;中国地质科学院岩溶地质研究所,广西,桂林,541004 |
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| 基金项目： | 国家自然科学基金
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广西自然科学基金 |
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| 摘 要： | 研究了广西弄拉封山育林40多年后植被对大气降雨、表层岩溶泉水物理化学特征、土壤自然含水量和土壤水的影响。结果表明:弄拉的森林植被能明显酸化大气降雨,增加雨水中碳的含量,促进岩溶生态系统的碳循环,增强岩溶动力系统中的溶蚀动力;增加土壤自然含水量,提高土壤风化程度,改善土壤理化性质,增加土壤水有机碳含量;增加表层岩溶泉水中化学成分的含量,改变水质。研究结果显示弄拉的生态恢复和重建已经取得了一定的成绩,今后的研究应在此基础上从改变水质,提高居民饮水质量出发,造福农民。
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| 关 键 词： | 广西弄拉 森林植被 喀斯特效应 岩溶生态系统 |
| 文章编号： | 1672-9250（2007）02-0128-06 |
| 修稿时间： | 2006-11-02 |
RARST EFFECT OF FOREST VEGETATION IN NONGLA,GUANGXI |
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| DENG Xin-hui,JIANG Zhong-cheng.RARST EFFECT OF FOREST VEGETATION IN NONGLA,GUANGXI[J].Earth and Environment,2007,35(2):128-133. |
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| Authors: | DENG Xin-hui JIANG Zhong-cheng |
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| Institution: | 1. Institute of Karst Geology, CAGS, Guilin 541004, China; 2. Hunan Industry University, Zhuzhou 412000, China; 3. Guangxi Normal University, Guilin 541007, China |
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| Abstract: | Some research has been done on secondary forest after more than forty years of closing of the land for reforestation in Nongla, Guangxi. It also deals with the influence of vegetation on rainfall, soil water, epikarst spring, etc. It can be concluded that the vegetation can acidify rainfall, increase carbon content in rainfall, chemical content in epikarst spring and water in soil, strengthen dissolution dynamics of the karst dynamics system, and improve soil weathering, water quality and soil physicochemical characters. Success has been made in ecological restoration and rehabilitation in Nongla, Guangxi. Next we need to do some other research on how to change water quality and improve the living conditions of the local people. |
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| Keywords: | Nongla Guangxi forest vegetation karstic effect karst ecologic system |
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