形态学图像处理方法在扎龙湿地景观格局分析中的应用  

Applying Shape Morphology Image Processing Method to Analyze Landscape Pattern at Zhalong Wetland

作　　者：张玉红[1] 张策[1] 臧淑英[1] 

机构地区：[1]哈尔滨师范大学地理科学学院地理资源与环境遥感重点实验室,黑龙江哈尔滨150025

出　　处：《地理与地理信息科学》2011年第4期103-106,F0003,共5页Geography and Geo-Information Science

基　　金：国家自然科学基金项目(40871082);哈尔滨师范大学青年学术骨干资助计划项目(KGB201016);黑龙江省高等学校科技创新团队建设计划项目

摘　　要：以数学形态学图像处理技术为主要方法,对扎龙湿地景观格局进行分类,形成核心、斑块、边缘和孔隙4种格局类型,并在此基础上与土地覆盖类型图叠加处理,分析湿地不同景观格局与土地覆盖类型的关系。结果表明,基于形态学图像处理技术的景观格局分类保持了像元水平的精度,优于传统的分类方式。1979-2008年,扎龙湿地的核心湿地减少,斑块、边缘和孔隙都相应增加。作为湿地中的优势类型,含地表水的湿地逐渐转移到非核心的斑块、边缘和孔隙湿地中,原有的核心湿地逐渐变得破碎。Spatial patterns were classified using morphological image processing at the pixel level on binary land-coverage maps.There are four types of landscape patterns to been classified at Zhalong wetland including core,patch,edge and perforated.Then land coverage map in further was overlaid on this basis with landscape pattern to analyze the relation between landscape pattern and land coverage.The results show that the classification of landscape pattern with shape morphology image processing owns higher spatial precision and thematic accuracy compared to a previous approach based on image convolution,while retaining the capability to label these features at the pixel level for any scale of observation.The area of core wetland decreased at Zhalong wetland from 1979 to 2008.As a main type,wetland with surface water transformed more from core to patch,edge and perforated,the original core wetland was more and more broken.

关 键 词：数学形态学 像元水平 景观格局 分类 破碎化 

分 类 号：X826[环境科学与工程—环境工程]