CAJ | 학술논문

以沙溪流域永安段为研究对象，利用RS、GIS技术，解译遥感影像获得的研究区景观类型分布图．运用Fragstats软件计算出研究区23个景观指数，根据相关分析和因子分析法对景观指数进行筛选，并据此对景观格局变化进行定量分析，结果表明：1）可用斑块类型的面积及幅度特征因子、形状复杂性因子、空间分布特征因子3个公因子表达23个景观指数的主要信息．2）从景观格局特征分析可以看出林地类型20a来优势度减少，形状趋向于规则且分布趋于集中；耕地类型面积逐渐减小且分布趋于集中；建设用地面积增大，聚集程度及连接性均有所增加．这种变化过程说明研究区景观受人为干扰较大，反映出流域内生态环境较为脆弱，应采取相应的管理措施，以实现景观生态系统的整体优化，达到保护生态环境的目的．
이사계류역영안단위연구대상，이용RS、GIS기술，해역요감영상획득적연구구경관류형분포도．운용Fragstats연건계산출연구구23개경관지수，근거상관분석화인자분석법대경관지수진행사선，병거차대경관격국변화진행정량분석，결과표명：1）가용반괴류형적면적급폭도특정인자、형상복잡성인자、공간분포특정인자3개공인자표체23개경관지수적주요신식．2）종경관격국특정분석가이간출임지류형20a래우세도감소，형상추향우규칙차분포추우집중；경지류형면적축점감소차분포추우집중；건설용지면적증대，취집정도급련접성균유소증가．저충변화과정설명연구구경관수인위간우교대，반영출류역내생태배경교위취약，응채취상응적관리조시，이실현경관생태계통적정체우화，체도보호생태배경적목적．
The study interprets Landsat TM remote sensing images with RS and GIS to obtain a distri- bution map of landscape types of the Sha River watershed in Yong'an. By Fragstats software, 23 inde- xes concerning landscape pattern of study area are worked out. And the indices are screened according to correlation analysis and factor analysis, by which a quantitative analysis can be done to indicate landscape pattern changes of the area. The main conclusions are as follows: 1 ) The three common factors, including the factor of area and extent characteristics, the factor of shape characteristics and the factor of spatial distribution characteristics, can explain the main information contained in the 23 indices; 2) woodlands are dominant in the landscape with a regular and centralized structure, culti- vated lands are decreasing in number and increasingly centralized in structure, all showing deep influ- ences from anthropogenic interference. Since the eco-environment in the study area is fragile, appro- priate solutions should be taken to implement overall landscape ecosystem optimization and eco-envi- ronmental preservation.