[1]路中,雷国平,王居午,等.30年来东北典型黑土区水土流失敏感性时空分异特征研究[J].自然灾害学报,2019,28(04):186-195.[doi:10.13577/j.jnd.2019.0420]
 LU Zhong,LEI Guoping,WANG Juwu,et al.Spatial-temporal variation characteristics of soil and water loss sensitivity in typical black soil regions in Northeast China in the past 30 years[J].,2019,28(04):186-195.[doi:10.13577/j.jnd.2019.0420]
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30年来东北典型黑土区水土流失敏感性时空分异特征研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
28
期数:
2019年04期
页码:
186-195
栏目:
出版日期:
2019-08-28

文章信息/Info

Title:
Spatial-temporal variation characteristics of soil and water loss sensitivity in typical black soil regions in Northeast China in the past 30 years
作者:
路中1 雷国平12 王居午2 郭晶鹏2 马鑫鹏2 杨欢2
1. 东北大学 土地管理研究所, 辽宁 沈阳 110004;
2. 东北农业大学 资源与环境学院, 黑龙江 哈尔滨 150030
Author(s):
LU Zhong1 LEI Guoping12 WANG Juwu2 GUO Jingpeng2 MA Xinpeng2 YANG Huan2
1. Land Management Institute, Northeastern University, Shenyang 110004, China;
2. College of Resource and Environment, Northeast Agricultural University, Harbin 150030, China
关键词:
水土流失敏感性东北典型黑土区RSGIS
Keywords:
sensitivity of soil erosiontypical black soil area in Northeast ChinaRSGIS
分类号:
P64;X43;S157
DOI:
10.13577/j.jnd.2019.0420
摘要:
为了精确分析研究区域内水土流失敏感性时空分异特征,本文在借鉴USLE的理论基础上,参考研究区域的实际特征,重新构建水土流失敏感性评价指标体系,研究嫩江平原北部典型黑土区近30年来水土流失敏感性时空分异特征。研究表明:① 1985年~2015年间研究区域水土流失的敏感性逐年增强,其水土流失危险性指数分别为2.08、2.10、2.27和2.31,且侵蚀沟密度逐渐增大,加剧了研究区域水土流失态势;② 30年来耕地的面积以47.1 km2/10a的速率增加,但是耕地的水土流失敏感性也随之增强,其中度敏感性区域增长最快,为34.3 km2/10a,其次为重度敏感区域,增长速率为27 km2/10a;③近30年间研究区域内其水土流失敏感性增加最为严重的区域为3°~5°坡度带内的坡耕地地区。
Abstract:
The purpose of this paper is to accurately analyze the spatial and temporal characteristics of soil erosion sensitivity in a region.Based on the theory of USLE and the actual characteristics of the study area, this paper reconstructs the evaluation index system of soil erosion sensitivity.The temporal and spatial characteristics of soil and water loss sensitivity in the typical black soil area of northern Nenjiang plain in recent 30 years is studied. Research shows:Firstly, from 1985 to 2015, the sensitivity of soil and water loss increased year by year, and the risk index of soil and water loss was 2.08、2.10、2.27 and 2.31, respectively. The gully density increased gradually, which exacerbated the situation of soil and water loss in the study area; Secondly, in the past 30 years, the area of cultivated land had increased at a rate of 47.1 km2/10a, but the sensitivity of cultivated land to soil erosion was also enhanced. The moderately sensitive region grew fastest, 34.3 km2/10a. The second is the highly sensitive region, with a growth rate of 27 km2/10a; Thirdly, in recent 30 years, the most sensitive area of soil erosion sensitivity in the study area is the slope farmland area in the 3 to 5 degree slope zone.

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备注/Memo

备注/Memo:
收稿日期:2018-10-08;改回日期:2019-03-24。
基金项目:国家自然科学基金项目(41671520);教育部博士学科点基金博导类项目(20112325110007);黑龙江省国土资源科研项目(黑国土科研201411)
作者简介:路中(1990-),男,博士研究生,主要从事土地利用与规划方面的研究.E-mail:1458835432@qq.com
通讯作者:雷国平(1963-),男,教授,主要从事土地利用规划与土地管理研究.E-mail:guopinglei@126.com
更新日期/Last Update: 1900-01-01