A decade of earthflow research and interrelated studies in the North Island of New Zealand
文献类型：会议论文
| 作者 | (1)M. MARDEN, C. J. PHILLIPS; (1)R. J. JACKSON; (2)X. B. ZHANG; (3)J. EKANAYAKE; X. B. ZHANG
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| 出版日期 | 1992 |
| 会议日期 | 1992 |
| 会议地点 | Chengdu, China |
| 关键词 | earthflow Soil-water pore-water North Island New Zealand |
| 卷号 | 209 |
| 页码 | 263-271 |
| 通讯作者 | M. MARDEN, C. J. PHILLIPS |
| 英文摘要 | Research on earthflows and inter-related processes in the eastern North Island, New Zealand, is reviewed. Early studies indicated strong coherent spatial movement patterns within individual flows. Maximum surface velocities of 3.6 to 20.4 m year"1 were seasonally consistent. Surface movement rates on forested flows were 2-3 orders of magnitude less than those on grassed earthflows. Subsurface deformation accounted for less than 25% of total surface movement. Subsurface deformation results largely from compression flow on forested earthflows and from extension flow on grassed earthflows. Soil-water measurements indicated a shorter period of high winter soil-water content under forest stands than under clearfelled sites. Tree roots influence earthflow movement by creating a reinforced upper layer 1-2 m thick that has significant tensional strength and higher shear strength than the underlying flow material. Future research will focus on earthflow material properties, and pore-water pressure development. |
| 会议录 | Erosion, debris flows and environment in mountain regions
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| 会议录出版者 | IAHS |
| 语种 | 英语 |
| ISBN号 | 0-947571-38-8 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/21461]  |
| 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） |
| 作者单位 | 1.Forest Research Institute, PO Box 31011, Christchurch, New Zealand; 2.Institute of Mountain Hazards and Environment, Chengdu, China; 3.Natural Resources Engineering, Lincoln University, Canterbury, New Zealand |
| 推荐引用方式 GB/T 7714 | et al. A decade of earthflow research and interrelated studies in the North Island of New Zealand[C]. 见:. Chengdu, China. 1992. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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