【摘要】 利用多时期的遥感数据和基于地理信息信息系统的景观格局研究方法,分析了辽河三角洲近30a来的景观演变规律。通过对比分析研究区4个时期的景观格局图(1976年、1989年、1998年、2004年),并计算主要景观类型的面积、斑块数、景观指数以及不同年代间的景观类型转移矩阵。结果表明:研究区近30a来景观类型并没有发生变化,景观格局的变化主要体现在主要景观类型的空间转化上,而且转化的速度和程度较大,其主要原因是人类活动和干扰,尤其是农业开发、油田开发以及城市化发展。更多还原

【Abstract】 With multi-temporal remote sensing data and landscape pattern research approach,which is based on GIS,we analyzed the change of landscape in Liaohe estuary wetland during the last 30 years,figured out the landscape patterns of four periods(1976,1989,1998,2004) in the study area and computed the area of major landscape types,patch amount,the landscape indexes and landscape type transfer matrix of 4 periods.The results showed that Landscape types in Liaohe estuary did not change during the last 30 years,but Change of landscape pattern was found mainly in the spatial transition of landscape types,and usually with rapid rate and big degree in the transiton,and it was highly correlated with the impact of human activity and disturbance,especially,the agriculture development,oil production,and urbanization.更多还原