| Effect of Land Use on Soil Properties in Debris Flow Bottomland： A Case Study at Xiaojiang Basin, Yunnan |
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| 作者姓名： | ZHANG Qiuying LI Fadong LIU Mengy SONG Xianfang OU Guoqiang |
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| 作者单位： | [1]Institute of Mountain Hazards and Environment, Chinese Academy of Sciences,Chengdu 610041, Sichuan, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049,China [3]Institute of Genetic and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, Hebei, China; [4]Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences, Beijing 100101, China |
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| 基金项目： | 中国科学院知识创新工程项目;国家研究发展基金 |
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| 摘 要： | In order to understand the effect of different land use on soil physics and nutrients properties of the debris flow bottomland, a case study at Daqing gully （in Xiaojiang Basin, Yunnan） was conducted in 2004. Soil samples were taken at depth of 0-10,10-20,20-40,40-60,60-80 cm under three land use patterns crop bottomland （CL）, forest bottomland （FL）, and barren bottomland（BL）. The results showed that the developing bottomland to CL promoted soil toaccumulate total phosphorus （TP） and available phosphorus （AP）, pH value transferred from neutral to alkalescency, and organic matter decreased significantly. Furthermore, the contents of total nitrogen （TN） and available nitrogen （AN） in CL were lower than that of FL and BL because the growth of crops consumed more nutrients in soil. The results also showed that the contents of TP, AP and available potassium （AK） in soil were positively correlated with soil particle.
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| 关 键 词： | 土地利用 土壤性质 云南 盆地 土壤肥力 泥石流 |
| 文章编号： | 1007-1202（2006）04-0870-05 |
| 收稿时间： | 2005-12-01 |
Effect of land use on soil properties in debris flow bottomland: A case study at Xiaojiang Basin, Yunnan |
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| ZHANG Qiuying LI Fadong LIU Mengy SONG Xianfang OU Guoqiang.Effect of land use on soil properties in debris flow bottomland: A case study at Xiaojiang Basin, Yunnan[J].Wuhan University Journal of Natural Sciences,2006,11(4):870-874. |
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| Authors: | Zhang Qiuying Li Fadong Liu Mengyu Song Xianfang Ou Guoqiang |
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| Institution: | (1) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041 Chengdu, Sichuan, China;(2) Graduate University of Chinese Academy of Sciences, 100049 Beijing, China;(3) Institute of Genetic and Developmental Biology, Chinese Academy of Sciences, 050021 Shijiazhuang, Hebei, China;(4) Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101 Beijing, China |
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| Abstract: | In order to understand the effect of different land use on soil physics and nutrients properties of the debris flow bottomland, a case study at Daqing gully (in Xiaojiang Basin, Yunnan) was conducted in 2004. Soil samples were taken at depth of 0-10,10-20,20-40,40-60,60-80 cm under three land use patterns crop bottomland(CL), forest bottomland(FL), and barren bottomland(BL). The results showed that the developing bottomland to CL promoted soil toaccumulate total phosphorus (TP) and available phosphorus (AP), pH value transferred from neutral to alkalescency, and organic matter decreased significantly. Furthermore, the contents of total nitrogen (TN) and available nitrogen (AN) in CL were lower than that of FL and BL because the growth of crops consumed more nutrients in soil. The results also showed that the contents of TP, AP and available potassium (AK) in soil were positively correlated with soil particle. |
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| Keywords: | land use soil properties soil granule composition Xiaojiang Basin |
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