| CHANGE OF NUTRIENT IMPORT AND EXPORT IN PROCESS OF RAINFALL IN AILAO MOUNTAIN OF YUNNAN PROVINCE |
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| 引用本文： | 甘健民,薛敬意,赵恒康.CHANGE OF NUTRIENT IMPORT AND EXPORT IN PROCESS OF RAINFALL IN AILAO MOUNTAIN OF YUNNAN PROVINCE[J].中国地理科学,1996,6(2):155-165. |
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| 作者姓名： | 甘健民 薛敬意 赵恒康 |
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| 作者单位： | Kunming Institute of Ecology，the Chinese Academy Of Sciences，Kunming 650223，PRC |
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| 摘 要： | ＣＨＡＮＧＥ ＯＦ ＮＵＴＲＩＥＮＴ ＩＭＰＯＲＴ ＡＮＤ ＥＸＰＯＲＴ ＩＮ ＰＲＯＣＥＳＳ ＯＦ ＲＡＩＮＦＡＬＬ ＩＮ ＡＩＬＡＯ ＭＯＵＮＴＡＩＮ ＯＦ ＹＵＮＮＡＮ ＰＲＯＶＩＮＣＥＧａｎＪｉａｎｍｉｎ（甘健民）；ＸｕｅＪｉｎｇｙｉ（薛敬意...
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| 收稿时间： | 15 December 1995 |
Change of nutrient import and export in process of rainfall in ailao mountain of Yunnan Province |
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| Jianmin Gan,Jingyi Xue,Hengkang Zhao.Change of nutrient import and export in process of rainfall in ailao mountain of Yunnan Province[J].Chinese Geographical Science,1996,6(2):155-165. |
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| Authors: | Jianmin Gan Jingyi Xue Hengkang Zhao |
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| Institution: | (1) Kunming Institute of Ecology, the Chinese Academy of Sciences, 650223 Kunming, PRC |
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| Abstract: | In this paper,the effects of rainfall on nutrient import and export in the broad-leaved evergreen forest in southwest Yunnan Province have been observed. The results show that in the process of rainfall the nutrient import in rainfall is mainly N and the major elements of nutrient import in throughrain are P, K and Mg. They occupy 69. 85%,77.33%,98.19%,and 80. 40% of the total nutrient import respectively. Ca occupies about half of the total nutrient import in rainfall and throughrain and the percentages are 45.35% and 54.38% respectively. The major form of nutrient export is soil percolation.N,P, K,Ca and Mg occupy 96.52%,86.79%, 69.13%, 98.17% and 97.21 % of the total nutrient export respectively.In nutrient cycle,N,P,K and Ca increase 25. 94 kg/(ha.a),0. 353 kg/(ha.a),3. 83 kg/(ha.a),1. 26 kg/(ha.a) respectively,but Mg reduces 0. 654 kg/(ha. a). |
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| Keywords: | broad-leaved evergreen forest rainfall nutrient import and export Ailao Mountain |
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