| 用热分析法研究鼎湖山土壤的粘粒矿物 |
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| 引用本文： | 唐进宣,李淑仪,朱棣海.用热分析法研究鼎湖山土壤的粘粒矿物[J].生态环境,1993(3). |
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| 作者姓名： | 唐进宣 李淑仪 朱棣海 |
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| 作者单位： | 广东省土壤研究所，广东省土壤研究所，广东省土壤研究所 广州 510650，广州 510650，广州 510650 |
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| 摘 要： | 广东鼎湖山自然保护区的土壤主要为山地黄壤和赤红壤。本文用差热-热重-微商热重(DTA-TG-DTG)联合热分析法,对两种土壤的粘粒矿物进行了初步研究,确认两种土壤的粘粒矿物组成主要为伊利石、高岭石、三水铝石、蛭石、针铁矿等。伊利石、三水铝石、蛭石的含量山地黄壤多于赤红壤,而高岭石则相反。两种土壤的风化程度不高,土壤矿物风化主要处于幼年阶段,山地黄壤尤其明显。另外,对不同林型下的赤红壤也进行了对比研究,其粘粒矿物组成和数量差异不大。
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| 关 键 词： | 鼎湖山 热分析 粘粒矿物 矿物组成 |
RESEARCH ON CLAY MINERALS OF SOILS IN DINGHU MOUNTAIN USING THERMAL ANALYTICAL METHODS |
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| Tang Jinxuan,Li Shuyi,and Zhu Dihai.RESEARCH ON CLAY MINERALS OF SOILS IN DINGHU MOUNTAIN USING THERMAL ANALYTICAL METHODS[J].Ecology and Environmnet,1993(3). |
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| Authors: | Tang Jinxuan Li Shuyi and Zhu Dihai |
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| Abstract: | There are yellow soil and latosolic red soil in the Dinghu mountain reservation in Guangdong province, we used DTA-TG-DTG thermal analytical methods to study the clay minerals in the soils. The results show that the clay minerals are illite, kaolinite, gibbsite, vermiculite and goethite. Contents of illite, gibbsite, vermiculite are richer in the yellow soil than in the latosolic red soil ,and kaolinite is converse. Weathering intensity of the soils is not very high. Mineral weathering ,particularly of yellow soil, is in the young stage. In addition,a comparative study on latosolic red soil under different forests was conducted. The composition and content of clay minerals are not very different. |
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| Keywords: | Dinghu mountain Thermal analysis Clay mineral Mineral composition |
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