中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 水土保持研究所
  3. 中国科学院水利部水土保持研究所
  4. 水保所科研产出--SCI
  5. 2017--SCI
Effects of rainfall regime and its character indices on soil loss at loessial hillslope with ephemeral gully

文献类型：期刊论文

作者Zheng Fen-li2,3; Zheng, FL (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Zheng, FL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.; Xu Xi-meng3; Han Yong1,2
刊名JOURNAL OF MOUNTAIN SCIENCE
出版日期2017
卷号14期号:3页码:527-538
关键词Rainfall Regime Soil Loss Rainfall Character Indices Loessial Hillslope Ephemeral Gully
ISSN号1672-6316
DOI10.1007/s11629-016-3934-2
文献子类Article
英文摘要Understanding the relationship between hillslope soil loss with ephemeral gully and rainfall regime is important for soil loss prediction and erosion control. Based on 12-year field observation data, this paper quantified the rainfall regime impacts on soil loss at loessial hillslope with ephemeral gully. According to three rainfall parameters including precipitation (P), rainfall duration (t), and maximum 30-minute rainfall intensity (I (30)), 115 rainfall events were classified by using K-mean clustering method and Discriminant Analysis. The results showed that 115 rainfall events could be divided into three rainfall regimes. Rainfall Regime 1 (RR1) had large I (30) values with low precipitation and short duration, while the three rainfall parameters of Rainfall Regime 3 (RR3) were inversely different compared with those of RR1; for Rainfall Regime 2 (RR2), the precipitation, duration and I (30) values were all between those of RR1 and RR3. Compared with RR2 and RR3, RR1 was the dominant rainfall regime for causing soil loss at the loessial hillslope with ephemeral gully, especially for causing extreme soil loss events. PI (30) (Product of P and I (30)) was selected as the key index of rainfall characteristics to fit soil loss equations. Two sets of linear regression equations between soil loss and PI (30) with and without rainfall regime classification were fitted. Compared with the equation without rainfall regime classification, the cross validation results of the equations with rainfall regime classification was satisfactory. These results indicated that rainfall regime classification could not only depict rainfall characteristics precisely, but also improve soil loss equation prediction accuracy at loessial hillslope with ephemeral gully.
学科主题Environmental Sciences & Ecology
URL标识查看原文
出版地BEIJING
语种英语
WOS记录号WOS:000396056200009
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China [41271299]; MWR Laboratory of Soil and Water Loss Process and Control in the Loess Plateau of China [2017001] ; National Natural Science Foundation of China [41271299]; MWR Laboratory of Soil and Water Loss Process and Control in the Loess Plateau of China [2017001] ; National Natural Science Foundation of China [41271299]; MWR Laboratory of Soil and Water Loss Process and Control in the Loess Plateau of China [2017001] ; National Natural Science Foundation of China [41271299]; MWR Laboratory of Soil and Water Loss Process and Control in the Loess Plateau of China [2017001]
源URL[http://ir.iswc.ac.cn/handle/361005/8026]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Zheng, FL (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Zheng, FL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714		 Zheng Fen-li,Zheng, FL ,Zheng, FL ,et al. Effects of rainfall regime and its character indices on soil loss at loessial hillslope with ephemeral gully[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(3):527-538.
APA Zheng Fen-li,Zheng, FL ,Zheng, FL ,Xu Xi-meng,&Han Yong.(2017).Effects of rainfall regime and its character indices on soil loss at loessial hillslope with ephemeral gully.JOURNAL OF MOUNTAIN SCIENCE,14(3),527-538.
MLA Zheng Fen-li,et al."Effects of rainfall regime and its character indices on soil loss at loessial hillslope with ephemeral gully".JOURNAL OF MOUNTAIN SCIENCE 14.3(2017):527-538.

入库方式： OAI收割

来源：水土保持研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。