Effects of land use on soil physical and chemical characters at debris flow bottomland | |
Zhang Qiuying2,3; Li Fadong1,3; Ou Guoqiang2; Song Xianfang1; Yang Cong3 | |
2005 | |
会议日期 | JUL 25-29, 2005 |
会议地点 | Seoul |
页码 | 4469-4472 |
国家 | SOUTH KOREA |
英文摘要 | Understanding of the characteristics of soil nutrients at the field and catchment scale is important for refining agricultural management practices and for improving sustainable land use. In order to analyze soil nutrient differences among different land use types and their relationships between land uses, 9 sampling sites including 3 land uses were selected in the Daqiaohe catchment on Yunnan of China. Significant differences in soil nutrients among these land uses were found. Higher values of soil nutrient in crop land soil, but lower values in forest soil and virgin soil. Nutrient contents decreased with soil profile depth increasing. All nutrient contents were poor in debris flow bottomland. At the same time, relationship between nutrient contents and grade contents was analyzed. The result showed that TP, AP and AK were significantly correlated with clay contents and slit contents at 0.01 level, while other nutrients were not correlated with clay and slit contents. There existed significant relationship between TP and sand contents, but for TN, the condition was found. However, nutrient was relation to many factors, thus relationship between nutrient contents and grade contents should he studied in future. |
产权排序 | 1 |
会议录 | IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium, Vols 1-8, Proceedings
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会议录出版者 | IEEE |
会议录出版地 | NEW YORK |
语种 | 英语 |
ISBN号 | 0-7803-9050-4 |
WOS记录号 | WOS:000237237605192 |
内容类型 | 会议论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/33476] ![]() |
专题 | 成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前) 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
通讯作者 | Zhang Qiuying |
作者单位 | 1.Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, CAS, Shijiazhuang 050021 2.Chengdu Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041; 3.Institute of Geographical Sciences and Resources Reseach, Chinese Academy of Sciences, Beijing 100101; |
推荐引用方式 GB/T 7714 | Zhang Qiuying,Li Fadong,Ou Guoqiang,et al. Effects of land use on soil physical and chemical characters at debris flow bottomland[C]. 见:. Seoul. JUL 25-29, 2005. |
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