| 影响我国九个农业经济自然区农业土壤元素的地球化学过程 |
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| 引用本文： | 李廷芳.影响我国九个农业经济自然区农业土壤元素的地球化学过程[J].首都师范大学学报(自然科学版),1992(3). |
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| 作者姓名： | 李廷芳 |
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| 作者单位： | 北京师范学院地理系 |
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| 摘 要： | 本文对我国九个农业经济自然区农业土壤在成土过程中引起的元素地球化学过程的差异,进而影响土壤元素含量进行了分析与探讨。其结果:亚热带土壤8种元素含量高于暖温带土壤,其重要原因是两者区域自然成土过程的不同,引起它们土壤理化性质和元素地球化学过程的差异形成的;耕作、施肥等农业技术措施,改变着土壤理化性质和元素地球化学过程,进而影响农业土壤元素含量;不同土壤类型,各有自己独特创面形态和元素地球化学过程,这是土壤元素纵向分布特征的决定性因素。
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| 关 键 词： | 农业土壤 成土过程 地球化学过程 |
Geochemical Process Affecting the Element Contents of Agricultural Soil in Nine Agricultural Natural Areas in China |
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| Li Tingfang.Geochemical Process Affecting the Element Contents of Agricultural Soil in Nine Agricultural Natural Areas in China[J].Journal of Capital Normal University(Natural Science Edition),1992(3). |
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| Authors: | Li Tingfang |
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| Institution: | Li Tingfang Department of Geography,Beijing teachers' College |
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| Abstract: | The geochemical process affecting the soil element contents insoil formingprocess is analyzed and discussed for nine agricultural natural areas in China.The results are the following: 1) contents of eight elements in agriculturualsoil in subtropical zone are much than those in warmtemperature, for themajor origin is differences of physical and chemical properties of soil andelement geochemical proces aroused in soil forming process; 2) the measuresas farming, manuring etc. can change physical and chemical properties of soiland element geochamical process, and therefore affect element contents; 3)various kinds of soil has its own unique form soil profiles and element geo-chemical process. this is the determing factor of soil element vertical distri-bution. |
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| Keywords: | agricultural soil soil forming process geochemical process |
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