CAJ | 학술논문

应用1989—2010年三期遥感影像，研究南瓮河国家级自然保护区景观格局演变特征。结果表明，森林是景观基质，草本沼泽是主体斑块，景观异质性较大；2000—2010年景观格局变化呈快速变化趋势，景观基质生态功能弱化，草本沼泽面积21年来首次超过森林；森林群落面积萎缩率高达34.02%，主要转化为森林沼泽；森林沼泽和道路面积增长率最大，分别达到80.94%和64.29%；景观斑块形状趋于复杂化，破碎化加剧，景观破碎化指数从1989年的0.2453上升至2010年的0.4498；火是最主要的驱动因子，道路修建、气候变化是重要的驱动因素。
응용1989—2010년삼기요감영상，연구남옹하국가급자연보호구경관격국연변특정。결과표명，삼림시경관기질，초본소택시주체반괴，경관이질성교대；2000—2010년경관격국변화정쾌속변화추세，경관기질생태공능약화，초본소택면적21년래수차초과삼림；삼림군락면적위축솔고체34.02%，주요전화위삼림소택；삼림소택화도로면적증장솔최대，분별체도80.94%화64.29%；경관반괴형상추우복잡화，파쇄화가극，경관파쇄화지수종1989년적0.2453상승지2010년적0.4498；화시최주요적구동인자，도로수건、기후변화시중요적구동인소。
Evolution characteristics of landscape pattern of Nanwenghe National Nature Reserve were studied by u-sing TM/ETM images to analyze the dynamic characteristics of wetland from 1 989 to 2010.Result shows that forest is the landscape matrix;herbaceous swamp occupied the dominant position;landscape heterogeneity are greater. Landscape pattern changes show trend of rapid change during the period of 2000 -2010.The ecological function of landscape matrix is weakening;area of herbaceous swamp exceeds the forest at the first time in 2010 since 21 years. Forest community area shrink ratios achieve 34.02%,which mainly converted to forest swamp.Forest swamp and road area increase the largest,being 80.94% & 64.29% respectively;the community of forest was fragmented sig-nificantly,patch shape tended to be complex,landscape fragmentation index increase from 0.245 3 in 1 989 to 0.449 8 in 2010;fire is the main driving force;road construction and climate change are important driving factors.