| 喀斯特山区红黏土在石漠化过程中的侵蚀与堆积记录——以乌蒙山脉麻窝山流域为例 |
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| 引用本文： | 谢良胜,吴攀,顾尚义,刘群,葛佳杰,曹振兴.喀斯特山区红黏土在石漠化过程中的侵蚀与堆积记录——以乌蒙山脉麻窝山流域为例[J].中国水土保持,2010(4):47-50. |
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| 作者姓名： | 谢良胜 吴攀 顾尚义 刘群 葛佳杰 曹振兴 |
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| 作者单位： | 贵州大学,资源与环境工程学院,贵州,贵阳,550003 |
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| 基金项目： | 科技部科研项目，贵州省科技厅重大专项计划项目，贵州大学研究生创新基金 |
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| 摘 要： | 以乌蒙山脉西陲重度石漠化盆地型喀斯特地区麻窝山为例,分别对侵蚀区和堆积区红黏土的粒径和主量元素特征进行了分析,研究了喀斯特山区红黏土在石漠化过程中的地球化学特征及环境响应。结果表明:在石漠化过程中,堆积区红黏土继承了侵蚀区红黏土的理化特征;堆积区与侵蚀区相比,前者红黏土的粒度较小,组分相对稳定,风化程度较高;差异侵蚀引起侵蚀区红黏土含量有较大波动,冲积和洪积作用使堆积区红黏土充分混合,其含量较为均一;短时间尺度内侵蚀区和堆积区风化程度没有明显变化;人类活动影响导致堆积区土壤中K2O、MnO等发生异常,是石漠化过程中引起环境表生地球化学变化的主要原因。
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| 关 键 词： | 石漠化 红黏土 堆积响应 喀斯特山区 |
Records of Erosion and Accumulation of Red Clay in Karst Mountain Area during Process of Rocky Desertification |
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| XIE Liang-sheng,WU Pan,GU Shang-yi,LIU Qun,GE Jia-xing,CAO Zhen-xing.Records of Erosion and Accumulation of Red Clay in Karst Mountain Area during Process of Rocky Desertification[J].Soil and Water Conservation In China,2010(4):47-50. |
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| Authors: | XIE Liang-sheng WU Pan GU Shang-yi LIU Qun GE Jia-xing CAO Zhen-xing |
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| Institution: | XIE Liang-sheng,WU Pan,GU Shang-yi,et al. (Resources , Environmental Engineering College,Guizhou University,Guiyang,Guizhou 550003,China) |
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| Abstract: | The paper analyzes the particle size and characteristics of major elements of red clay in soil erosion and accumulation areas and studies the geochemical characteristics and environmental responses of red clay during the process of rocky desertification in karst mountain area respectively,by taking Mawo Mountain which is situated in karst area of serious rocky desertification basin in the western of Wumeng Mountains as an example. The outcomes show that a) the red clay of accumulation area inherited the phy... |
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| Keywords: | rocky desertification red clay accumulative response karst mountain area |
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