Sediment properties of hyperconcentrated flow and the potential for agricultural improvement of debris flow deposits-A case study on the Jiangjia Ravine, Yunnan Province, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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）

	Sediment properties of hyperconcentrated flow and the potential for agricultural improvement of debris flow deposits-A case study on the Jiangjia Ravine, Yunnan Province, China
	Wang, DJ; Cui, P; Su, FH; Zhu, YY
	2007
会议日期	SEP 10-13, 2007
会议地点	Chengdu
关键词	Jiangjia Ravine hyperconcentrated flow debris flow deposits irrigation
页码	725-733
国家	PEOPLES R CHINA
英文摘要	Debris flow deposits with large particle sizes and no clear soil profile are unfit for crop growth. In order to agriculturally exploit debris flow deposits, the sediment properties of hyperconcentrated flows and their use for agriculturally improving debris flow deposits were studied. The results indicate that the sediment content of hyperconcentrated flow in the Jiangjia Ravine is 23-335 kg/m(3) during the rainy season. The soil particle distribution of sediment is 73-86% of <0.02 mm particle size and 54-80% of 0.02-0.002 mm micro-aggregates. The soil nutrient of the sediment is poor or very poor, but rich in total K. Application of irrigation to hyperconcentrated flow deposits improves the soil particle composition, the soil profile structure, and the soil micro-aggregates of debris flow deposits, but does not improve soil nutrients. Therefore, applications of organic and inorganic fertilizer and rational planting measures are required to improve soil fertility and to prevent the soil from becoming hardened and barren.
源文献作者	Chen, CL ; Major, JJ
产权排序	1
会议录	DEBRIS-FLOW HAZARDS MITIGATION: MECHANICS, PREDICTION, AND ASSESSMENT
会议录出版者	MILLPRESS SCIENCE PUBLISHERS
会议录出版地	ROTTERDAM
语种	英语
ISBN号	978-90-5966-059-5
WOS记录号	WOS:000267333300070
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/33501]
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	Wang, DJ
作者单位	Key Laboratory of Mountain Hazards and Earth Surface Process, Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Wang, DJ,Cui, P,Su, FH,et al. Sediment properties of hyperconcentrated flow and the potential for agricultural improvement of debris flow deposits-A case study on the Jiangjia Ravine, Yunnan Province, China[C]. 见:. Chengdu. SEP 10-13, 2007.