文献类型：期刊文献

中文题名：东北黑土区沟蚀现状及其与景观格局的关系

英文题名：Gully status and relationship with landscape pattern in black soil area of Northeast China

作者：王文娟[1];张树文[2];邓荣鑫[3]

第一作者：王文娟

通讯作者：Wang, W.

机构：[1]河南财经政法大学资源与环境科学系;[2]中国科学院东北地理与农业生态研究所;[3]华北水利水电学院资源与环境学院

第一机构：河南财经政法大学资源与环境学院

年份：2011

卷号：27

期号：10

起止页码：192-198

中文期刊名：农业工程学报

外文期刊名：Transactions of the Chinese Society of Agricultural Engineering

收录：CSTPCD;;EI(收录号：20114614514848);Scopus(收录号：2-s2.0-80855161027);北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金项目(40771162)

语种：中文

中文关键词：沟蚀;侵蚀沟密度;东北黑土区;景观指数

外文关键词：soils; erosion; geographic information systems; gully density; Black Soil Area of Northeast China; landscape metrics

摘要：调整土地利用结构改善景观要素的数量比重,以及优化景观斑块的空间配置是控制土壤侵蚀的有效措施之一,该文选择典型黑土区内的克东县为研究区,以SPOT5影像为基础数据源,获取了研究区的沟蚀现状及景观格局分布现状。运用ArcGIS的水文分析模块提取研究区55个子流域作为基本分析单元,运用GIS空间分析能力和FRAGSTAT软件获取了不同子流域的侵蚀沟密度及其对应的景观格局指数值,通过相关性分析探讨和研究侵蚀沟与景观格局之间的关系,据此为当地或同类地区农业景观的土地利用规划和侵蚀治理提供科学参考。结果表明研究区结构性侵蚀沟条数为2246条,最短侵蚀沟为19.7m,最长侵蚀沟为12499.43m,侵蚀沟密度为479.15m/km2,吞噬耕地面积为1734.05hm2,破坏耕地面积为8067.5hm2;研究区为典型的基质-斑块-廊道农业景观,旱地较高的人工化是侵蚀产生的重要原因;侵蚀沟密度与旱地和林地的面积百分比、分维数、聚集度和多样性指数的相关性分析表明,合理的调整旱地、林地和草地的比例,优化景观斑块空间配置,对于抑制侵蚀具有重要性;侵蚀沟密度与景观指数的多因子相关性分析表明,各子流域之间的景观格局差异不是引起沟蚀差异的主要原因,探讨沟蚀形成因素需要将多种因子综合进行分析。
The regulation of land use structure,improvement on quantity proportion of landscape constituent and optimization of the landscape patch spatial distribution are the important measures to control erosion.Taking Kedong county in typical black soil area of Northeast China as study area,using SPOT5 image as basic data source,gully distribution status and landscape pattern were obtained for the study area.Based on hydrology analysis module,55 subbasins were extracted as basic analysis units,then gully density and landscape pattern metrics in each subbasin were gotten using GIS spatial function and FRAGSTAT software,respectively.By correlation analysis,the relationship between gully erosion and landscape pattern was analyzed.The results showed that the number of gully is 2 246.The shortest and longest gully was 19.7 m and 12 499.43 m,respectively.Gully density is 479.15 m/km2.The erosion area of cultivated land was 1 734.05 hm2 and the area of destroyed cultivated land was 8 067.5 hm2.The study area is a typical matrix-patch-corridor agriculture landscape and the high factitious dry land is the main reason to cause erosion.Single-factor correlation analysis between gully density and percentage of landscape（PLAND） of dry land,forest,Perimeter-Area Fractal Dimension（PAFRAC）,Contagion Index（CONTAG）,and Shannon＇s Diversity Index（SHDI） showed that regulating the percents in dry land,grass and forest and optimizing the landscape configuration reasonably were very important for the soil erosion control and management.Multi-factor correlation analysis between gully density and landscape metrics showed that the difference of landscape pattern in subbasin was not the key reason that caused the difference of gully erosion,and therefore,research on gully formation need to integrate natural and human activities factors for further study.The research can provide suggestion for land use planning and soil erosion control in agriculture landscape.