| 我国九个农业经济自然区土壤背景值图的编制 |
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| 引用本文： | 李廷芳,吴焕中.我国九个农业经济自然区土壤背景值图的编制[J].地理研究,1991,10(1):39-47. |
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| 作者姓名： | 李廷芳 吴焕中 |
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| 作者单位： | 1. 北京师范学院地理系;2. 南京环境科学研究所;3. 农牧渔业部环境保护研究所 |
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| 摘 要： | 总结了我国九个省区主要经济自然区土壤污染元素背景值图编制中取得的一些主要经验与成果。
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| 关 键 词： | 土壤背景值 制图单元 |
| 收稿时间： | 1988-04-10 |
MAPPING OF SOIL BACKGROUND CONTENT MAP IN AGRICULTURAL REGIONS OF CHINA |
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| Li Tingfang.MAPPING OF SOIL BACKGROUND CONTENT MAP IN AGRICULTURAL REGIONS OF CHINA[J].Geographical Research,1991,10(1):39-47. |
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| Authors: | Li Tingfang |
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| Institution: | 1. Beijing Teacher''s College;2. Enuironmental Sciences Research Institute of Nanjing;3. Environment protection Research Institute, Ministry of Agriculture, Amimal Husbandry and Fishery |
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| Abstract: | The determination of drafting unit, the diuision of grades of drawing in background maps and some other problems in the statistic map of the division of grades of background contents in nine natural areas of econmics of China have been discussed and saummed up in the paper. The determinative principle of drafting units is based on the main and comprehensive factors which affect regional distribution of elements contents in soils; significant test ia used to divide grades of background contents. |
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| Keywords: | Soil background content map Statistic map of the division of grades Drabting unit |
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