| 我国不同自然带的化学剥蚀过程 |
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| 引用本文： | 许炯心.我国不同自然带的化学剥蚀过程[J].地理科学,1994,14(4):306-314. |
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| 作者姓名： | 许炯心 |
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| 作者单位： | 中国科学院、国家计划委员会地理研究所 北京100101 |
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| 摘 要： |
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| 关 键 词： | 化学剥蚀过程 地带性 溶解物质输移 化学风化 |
CHEMICAL DENUDATIONAL PROCESSES IN DIFFERENT NATURAL ZONES OF THE MONSOON-INFLUENCED EASTERN CHINA |
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| Xu Jiongxin.CHEMICAL DENUDATIONAL PROCESSES IN DIFFERENT NATURAL ZONES OF THE MONSOON-INFLUENCED EASTERN CHINA[J].Scientia Geographica Sinica,1994,14(4):306-314. |
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| Authors: | Xu Jiongxin |
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| Abstract: | Based on the data of dissolved matter measurement collected from more than 70 gaging stations in the rivers of the monsoon-influenced eastern China.this paper deals with the chemical denudational processes, including the effect of zonal factors such as temperature, precipitation, vegetation and the drainage basin dryness upon the chemical denudational rate,and the zonal differentiation in the chemical denudation in the mon-soon-influenced eastern China. As a result, a curve has been established, which shows the latitudinal variation of the chemical denudational rate in this region.It is suggested that, at the macro-scale , temperature, precipitation, drainage basin dryness and vegetation are the main factors controlling the chemical denudational inten-sity. With the increase of temperature, precipitation, forest cover and a decrease of drainage basin dryness,the chemical denudational rate increases. On the other hand,at amoderate and a small space scale,the rock types determine the differences in the chemi-cal denudational rate under the same climatic conditions.An obvious zonality in the chemical denudational processes in the monsoom-influ-enced eastern China has been indicated by this study. The chemical denudational rate is the highest in the tropical and subtropical humid areas in the southern and central China,and it becomes lower in the warm temperate sub-humid areas. In the north China warm temperate semi-arid areas, it declines to the lowest value, when going further northeastward, it increases again in the northeast China cool temperate sub-humid ar-eas. The foregoing zonal variation can be explained by the different combinations of tem-perature,precipitation,drainage basin dryness and vegetation in different natural zones. |
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| Keywords: | Chemical denudational process Zonality Dissolved matter transfer Monsoon-influenced eastern China |
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