| 不同岩溶生态系统中元素的地球化学迁移特征比较——以广西弄拉和弄岗自然保护区为例 |
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| 引用本文： | 邓艳,蒋忠诚,罗为群,陆瑞群,曾玉和,黄红慧.不同岩溶生态系统中元素的地球化学迁移特征比较——以广西弄拉和弄岗自然保护区为例[J].中国岩溶,2006,25(2):168-171. |
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| 作者姓名： | 邓艳 蒋忠诚 罗为群 陆瑞群 曾玉和 黄红慧 |
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| 作者单位： | 1.中国地质科学院岩溶地质研究所 2.广西师范大学生命科学学院 |
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| 基金项目： | 国家自然科学基金项目(40572151)，中国地质科学院重点开放实验室专项资金(KL05-21)，国家“十五”科技攻关项目(2001BA606A08)，广西科技厅项目(0322027-8) |
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| 摘 要： | 研究了广西弄拉和弄岗自然保护区两种不同岩溶生态系统的元素地球化学循环特点,结果表明,弄拉、弄岗的成土过程都表现为Si和Fe相对累积,而其它化学元素则表现为相对淋失。弄岗与弄拉相比,其元素的淋失程度更为强烈,但在植物中两者表现出比较相似的元素地球化学特点。弄岗泉水p H比弄拉的低,水的溶蚀能力增大,水中可溶物增多,元素循环也比弄拉的快。
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| 关 键 词： | 岩溶生态系统 地球化学循环 元素迁移 弄拉、弄岗自然保护区 广西 |
| 文章编号： | 1001-4810（2006）02-0168-04 |
| 收稿时间： | 2005-08-28 |
| 修稿时间： | 2005年8月28日 |
COMPARISON OF GEOCHEMICAL LEACHING CHARACTERISTICS OF ELEMENTS BETWEEN DIFFERENT KARST ECOSYSTEMS--A Case Study in Guangxi Nongla and Nonggang Natural Forest Reserve Areas |
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| DENG Yan,JIANG Zhong-cheng,LUO Wei-qun,LU Rui-qun,ZENG Yu-he and HUANG Hong-hui.COMPARISON OF GEOCHEMICAL LEACHING CHARACTERISTICS OF ELEMENTS BETWEEN DIFFERENT KARST ECOSYSTEMS--A Case Study in Guangxi Nongla and Nonggang Natural Forest Reserve Areas[J].Carsologica Sinica,2006,25(2):168-171. |
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| Authors: | DENG Yan JIANG Zhong-cheng LUO Wei-qun LU Rui-qun ZENG Yu-he and HUANG Hong-hui |
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| Institution: | 1.Institute of Karst Geology , CAGS 2.College of Life Science, Guangxi Normal University |
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| Abstract: | This paper deals with the elements' geochemical characteristics in different karst ecosystems.The results show that the elements Si and Fe are cumulating,while other elements leaching in the forming processes of soil.The elements leaching in Nonggang is stronger than that in Nongla.The elements' geochemical characteristics in plant in two areas are similar.The pH of spring water in Nonggang is lower than that in Nongla,and so the water is more aggressive,and the elements leaching is quicker in Nonggang than that in Nongla. |
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| Keywords: | Karst ecological system Geocheimcal cycle Elements leaching Nongla and Nonggang Natural Forest Reserve Areas Guangxi |
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