[1]严冬春,王一峰,文安邦,等.紫色土坡耕地细沟发育的形态演变[J].山地学报,2011,(04):469.
　YAN Dongchun,WANG Yifeng,et al.Configuration Evolvement of Rill Development on Purple Slopeland[J].Mountain Research,2011,(04):469.
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紫色土坡耕地细沟发育的形态演变()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年04期
页码:
469
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Configuration Evolvement of Rill Development on Purple Slopeland
作者:
严冬春;王一峰;文安邦;史忠林;龙翼;
1.中国科学院水利部成都山地灾害与环境研究所 山地表生过程与生态调控重点实验室，四川 成都 610041；
2.长江科学研究院水土保持研究所，湖北 武汉 430010；
3.中国科学院研究生院，北京 100049
Author(s):
YAN Dongchun;  WANG Yifeng;  WEN Anbang;  SHI Zhonglin;  LONG Yi
1.Key Laboratory of Mountain Environment Evolvement and Regulation, Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, Sichuan, China;
2.Institute of Soil and Water Conservation, Changjiang Academy of Sciences, Wuhan 430010,Hubei, China;
3.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
紫色土; 坡耕地; 细沟; 形态演变
Keywords:
purple soil;  slopeland;  rill;  configuration evolvement
分类号:
P9311
文献标志码:
A
摘要:
研究细沟发育的形态演变规律是认识细沟发生机理的前提,本研究通过人工降雨与微地貌扫描相结合的方法,调查了紫色土坡耕地细沟发生过程的形态演变特征。采用三维激光扫描仪扫描不同降雨时段坡面,生成高精度坡面DEM图像,统计各时段不同坡段等高线偏离度,量算坡面凹陷区的表面积、周长、直径以及沟头下切深度;结果表明,等高线偏离度越大细沟发育越完全,有细沟发生坡面等高线偏离度是无细沟坡面的1倍以上;凹陷区的表面积、周长、直径相对于单位降雨量的扩展速率均在细沟贯穿时段出现最大值;跌坑位置与坡面水平起伏关系不明显,统计的3条沟头分别发育于水平方向起伏的最高点、中间点和低点;跌坑下切深度及其单位降雨量的扩展速率在跌坑...
Abstract:
The investigation on the configuration evolvement of rill is the precondition of rill development mechanism research. This study adopted the methods of artificial rainfall and macromorphology scan to investigate the configuration evolvement of rill development on purple soil slopeland. The results displayed that some indexes were effective to express configuration evolvement of rill, such as the degree of contour line departure, enlarge rate of surface area, perimeter, diameter and rill deepness with unit precipitation. The higher the degree of contour line departure, the more entireness of rill development, and the degree of contour line departure in the rill development region was more than one time to the no rill development area. The maximum of enlarge rate about surface area and diameter, was taken place when the droppit was rush through. And the position of droppit was not directness relation with the undulation of surface level, because the positions of three droppit we surveyed were taken place on the vertex, middle and low. The enlarge rate of rill deepness was augment firstly, then played down gradually, and the maximum took place at the droppit rush through period, so it implies that the forming of droppit was the key of rill cutting channel.

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[1]严冬春,文安邦,龚长文,等.紫色土陡坡耕地顺坡垄作条件下的土壤及其流失特征[J].山地学报,2014,(03):314.
　YAN Dongchun,WEN Anbang,GONG Changwen,et al.Characteristics of Purple Soil and Soil Loss on Downslope Furrow Tillage Sloping Farmland[J].Mountain Research,2014,(04):314.
[2]史忠林,文安邦,严冬春,等.紫色土坡地侵蚀产沙过程的7Be法初探[J].山地学报,2013,(01):71.
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[4]严冬春,文安邦,史忠林,等.紫色土坡面水流跌坑形态特征及其成因[J].山地学报,2012,(01):30.
　YAN Dongchun,WEN Anbang,SHI Zhonglin,et al.Configuration Characteristic and Cause of Drop-Pit Development on Purple Slopeland[J].Mountain Research,2012,(04):30.
[5]成文,何毓蓉.紫色土不同土体的水热特征[J].山地学报,1993,(02):119.
[6]郭永明,汤宗祥.四川紫色土旱地退化及其防治[J].山地学报,1993,(04):216.
[7]何毓蓉,成文.紫色土不同土体的土壤养分和酶活性特征[J].山地学报,1993,(04):223.
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[10]文安邦,张信宝,张一云,等.黄土峁坡耕地土壤侵蚀与泥沙输移[J].山地学报,1995,(02):85.
[11]吕甚悟,陈谦,袁绍良,等.紫色土坡耕地水土流失试验分析[J].山地学报,2000,(06):520.

备注/Memo

备注/Memo:
收稿日期(Received date)：2010-04-10；改回日期(Accepted) : 2010-12-30。
基金项目（Foundation item）：国家科技支撑计划项目（课题号：2008BAD98B01），国家科技重大专项课题（课题号：2009ZX07104-002-06）。\[Science and technology support project in china (No. 2008BAD98B01), Nation important vocation project (No. 2009ZX07104-002-06).\]
作者简介（Biography）：严冬春，男，1981年出生，湖北宜昌人，博士研究生，主要从事土壤侵蚀与水土保持研究。\[Yan Dongchun, male, come from Yichang and was born in 1981, doctor graduate student, mostly engage soil erosion and soil and water conservation study.\] phone number: 13438382030, E-mail: yandc@imde.ac.cn
更新日期/Last Update: 1900-01-01