CAJ | 학술논문

在“3S”的技术支持下,基于辽河三角洲湿地1988-2009年7年不同时期的遥感数据,选用斑块密度指数、分维数、分离度、景观多样性指数、景观优势度指数、景观香农多样性指数6种指数对辽河三角洲湿地景观破碎化程度进行分析.结果表明:(1)1988-2009年辽河三角洲湿地景观格局呈现破碎化趋势;(2)在不同湿地景观类型中,芦苇沼泽破碎化程度最为显著,其分维数最小、分离度最大;(3)景观多样性指数和景观香农多样性指数呈现上升态、景观优势度指数呈现下降态.研究表明辽河三角洲湿地景观破碎化程度具有增强的趋势.
재“3S”적기술지지하,기우료하삼각주습지1988-2009년7년불동시기적요감수거,선용반괴밀도지수、분유수、분리도、경관다양성지수、경관우세도지수、경관향농다양성지수6충지수대료하삼각주습지경관파쇄화정도진행분석.결과표명:(1)1988-2009년료하삼각주습지경관격국정현파쇄화추세;(2)재불동습지경관류형중,호위소택파쇄화정도최위현저,기분유수최소、분리도최대;(3)경관다양성지수화경관향농다양성지수정현상승태、경관우세도지수정현하강태.연구표명료하삼각주습지경관파쇄화정도구유증강적추세.
@@@@Based on "3S" technology and remote sensing data during different periods in 7 years from 1988 to 2009 in Liaohe delta wetland, this study analyzes the degree of landscape fragmentation of Liaohe delta wetland using 6 indexes including patch density index, fractal dimension, separation, landscape diversity index, landscape dominance index and landscape Shannon diversity index. The results reveals that (1) between 1988 and 2009, Liaohe delta wetland landscape pattern shows a trend of fragmentation; (2) among different types of wetland landscape, the fragmentation of reed swamp is the most significant with a lowest fractal dimension and highest separation degree; (3) the landscape diversity index and landscape Shannon diversity index show a rising trend and landscape dominance index appeared a downward trend. All the studies demonstrate that the Liaohe delta wetland landscape fragmentation has an enhanced trend.