CAJ | 학술논문

基于洞庭湖1987、1996、2008年三期LANDSAT-TM影像及1∶10000土地利用现状图，以钱粮湖单退垸为例，应用GIS技术及FRAGSTATS景观分析软件，从斑块类型和景观水平上分析了其近20多年来的景观格局动态变化，通过建立转移矩阵及计算转移贡献率，分析了景观格局变化的驱动力。结果表明：1987-2008年间，湖区景观要素类型发生了明显变化，总体上表现为旱地和园地面积持续减少，水域、水田、道路和建筑用地面积持续增加，林地面积先减后增；景观格局总体变化趋势是多样性增加、均匀度增加、破碎度增大、景观形状由简单趋于复杂；人口增长与城镇化建设、产业结构调整、退田还湖工程实施是导致研究区景观格局动态变化的三大驱动力。
기우동정호1987、1996、2008년삼기LANDSAT-TM영상급1∶10000토지이용현상도，이전량호단퇴완위례，응용GIS기술급FRAGSTATS경관분석연건，종반괴류형화경관수평상분석료기근20다년래적경관격국동태변화，통과건립전이구진급계산전이공헌솔，분석료경관격국변화적구동력。결과표명：1987-2008년간，호구경관요소류형발생료명현변화，총체상표현위한지화완지면적지속감소，수역、수전、도로화건축용지면적지속증가，임지면적선감후증；경관격국총체변화추세시다양성증가、균균도증가、파쇄도증대、경관형상유간단추우복잡；인구증장여성진화건설、산업결구조정、퇴전환호공정실시시도치연구구경관격국동태변화적삼대구동력。
Based on the LANDSAT-TM images in 1987,1996 and 2008 years and the present land use maps ( 1 ∶ 10 000 ) of Qianlianghu polder in Dongting Lake region and by applying to GIS technologies and FRAGSTATS analyzing software,landscape pattern dynamic changes of Qianlianghu polder were analyzed on the patch type and landscape scales,and its driving forces were further analyzed through establishing the transfer ma-trixes and calculating transfer contribution rates in last more than 20 years. The results showed that landscape ele-ment types changed significantly in Dongting Lake region from 1987 to 2008,which were proofed wholly by area continuous decreasing in the types of dry land and garden plot,area continuous increasing in the types of water, paddy field,road and building land,and for the woodland area were firstly decreased and then increased. The o-verall changing trends in landscape patterns of Qianlianghu polder were increased in diversity,evenness,and de-gree of fragmentation,and became complexity in the shapes of landscape. The three main driving forces for land-scape pattern changing were population increase and urbanization construction,industrial structure adjustment,to-gether with the project implement of converting polders back into wetlands.