[1]李飞,张树文,杨久春,等.侵蚀沟与耕地垄向之关系探究[J].水土保持研究,2015,22(01):1-4.
　LI Fei,ZHANG Shuwen,YANG Jiuchun,et al.Investigation of Relations Between Gully and Ridge Direction[J].Research of Soil and Water Conservation,2015,22(01):1-4.
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侵蚀沟与耕地垄向之关系探究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年01期 页码: 1-4 栏目: 出版日期: 2015-02-28
Title:
Investigation of Relations Between Gully and Ridge Direction
作者:
李飞1, 张树文1,2, 杨久春2, 卜坤2, 常丽萍2, 李天奇3
1. 吉林大学 地球科学学院, 长春 130061;
2. 中国科学院 东北地理与农业生态研究所, 长春 130102;
3. 河南大学, 河南 开封 475200
Author(s):
LI Fei1, ZHANG Shuwen1,2, YANG Jiuchun2, BU Kun2, CHANG Liping2, LI Tianqi3
1. College of Earth Science, Jilin University, Changchun 130061, China;
2. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
3. He’nan University, Kaifeng, He’nan 475200, China
关键词:
侵蚀沟; 顺坡起垄; 横坡起垄; 斜坡起垄
Keywords:
gully; strike ridge; dip ridge; askew ridge
分类号:
S157
摘要:
沟壑侵蚀是土壤侵蚀的一个重要方面，越来越多地受到国内外学者的关注和研究。根据野外调查数据、DEM数据和Google earth影像数据，分析了不同海拔、坡度、坡形上侵蚀沟与耕地垄向之间的关系。结果表明：（1）总体来看，斜坡起垄的耕地内最不易形成侵蚀沟，横坡起垄的耕地内最易产生侵蚀沟；（2）在海拔小于240 m的耕地内，斜坡起垄能够减缓或防止侵蚀沟的产生，横坡起垄最易于产生侵蚀沟；海拔大于240 m的耕地内，斜坡起垄最易产生侵蚀沟，横坡起垄最不易产生侵蚀沟；（3）在0～2°坡度上，顺坡起垄的耕地内侵蚀沟密度最大，斜坡起垄的耕地内的侵蚀沟密度最小；在2°～6°坡度上，由于“渠系效应”的作用，横坡起垄的耕地内最易产生侵蚀沟，坡度大于6°时，侵蚀沟最易在顺坡起垄的耕地中产生发展；（4）无论坡形如何，横坡起垄的耕地内的侵蚀沟密度都大于顺坡起垄，斜坡起垄能够有效减缓甚至防止侵蚀沟的发生发展。
Abstract:
Gully erosion is an important type of soil erosion, it attains more and more researchers’ concerns and researches. Based on the field survey data, DEM data and Google earth image data, we analyzed the relationship between gully and land ridge direction on different altitudes, slope gradients and slope shapes. The results showed that: (1) the land of askew ridge was most difficult to generate gully, the land of strike ridge is most easy to generate gully; (2) in the arable land where the altitude was less than 240 m, askew ridge can slow or prevent the generation of the gully, and strike ridge was most prone to gully erosion;in the arable land where the altitude was greater than 240 m, askew ridge was most prone to generate gully erosion, strike ridge wss most difficult to produce erosion gully; (3) when slope gradient was less than 2°, gully density of land whose ridge was dip ridge was the greatest, and the gully density of askew ridge was the least; when the slope gradients range from 2° to 6°, the strike ridge land was most prone to generation gully erosion because of the ‘channels function’; when the slope gradient was greater than 6°, gully most easily formed and developed in dip ridge land; (4) no matter what kind of slope shape was, gully density in strike ridge land was greater than in dip ridge land, and the askew ridge can effectively slow or even prevent the occurrence and development of gully.

参考文献/References:

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备注/Memo

收稿日期:2014-02-10;改回日期:2014-04-04。
基金项目:中国科学院战略性先导科研专项“过去百年增暖对北方农牧交错带格局的影响”（XDA05090310）；国家自然科学基金项目“东北地区农林交错带近百年土地利用变化数字重建及脆弱性研究”（41271416）
作者简介:李飞(1989-),男,河南杞县人,博士,主要研究方向为土地资源管理。E-mail:tianchiwaren@sina.com
通讯作者:张树文(1954-),男,吉林长春人,研究员,主要研究方向为土地系统科学。E-mail:zhangshuwen@neigae.ac.cn

更新日期/Last Update: 1900-01-01