| 论黔西北麻窝山岩溶盆地土壤堆积记录——兼答张信宝先生 |
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| 引用本文： | 吴攀,谢良胜.论黔西北麻窝山岩溶盆地土壤堆积记录——兼答张信宝先生[J].中国水土保持科学,2011,9(6):83-87. |
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| 作者姓名： | 吴攀 谢良胜 |
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| 作者单位： | 1. 贵州大学资源与环境工程学院,550003,贵阳
2. 贵州大学资源与环境工程学院,550003,贵阳;贵阳市环境保护局,550002,贵阳 |
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| 基金项目： | 国家“973”计划项目课题“碳酸盐岩风化的生物地球化学过程与成土速率”(2006CB403202) |
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| 摘 要： | 针对张信宝先生用137Cs断代法计算黔西北麻窝山岩溶盆地土壤沉积速率,以及对谢良胜等研究成果提出的质疑,笔者从黔西北麻窝山岩溶盆地环境现状、环境演变、土壤堆积、137Cs活度等方面进行论述。认为:易地堆积土壤来源的不确定性导致土壤层中137Cs来源复杂,不能根据其峰值确定沉积年代,但可以作为定性判定土壤侵蚀强度的依据;在资料匮乏和无测站数据时,沉积量测量法是盆地型喀斯特山区土壤侵蚀计算的有效方法;麻窝山特殊的环境地质条件为喀斯特石漠化系统研究提供理想场所。
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| 关 键 词： | 岩溶盆地 137Cs活度 土壤堆积 麻窝山 |
Recording of soil sediment in the Mawoshan Karst Basin of Northwest Guizhou Province |
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| Wu Pan,Xie Liangsheng.Recording of soil sediment in the Mawoshan Karst Basin of Northwest Guizhou Province[J].Science of Soil and Water Conservation,2011,9(6):83-87. |
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| Authors: | Wu Pan Xie Liangsheng |
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| Institution: | Wu Pan1,Xie Liangsheng1,2(1.College of Resources and Environmental Engineering,Guizhou University,550003,Guiyang,2.Guiyang Environmental Protection Agency,550002,Guiyang: China) |
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| Abstract: | According to the average sediment accumulation rate calculated by Zhang Xinbao with 137Cs dating method as well as doubt on the research results of Xie Liansheng etc.the basin environmental status,environmental evolution,soil sediment,137Cs activity in the Mawoshan Karst Basin of the Northwest Guizhou were represented and discussed again.The results indicated that the uncertainty of source of soil accumulation resulted in complex 137Cs sources in soil layer.The peak value of 137Cs could not be used to deter... |
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| Keywords: | Karst basin 137Cs activity soil sediment Mawoshan |
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