Multi-scale Analysis Of Coastal Wetland Landscape Pattern Based On GIS/RS

The application of GIS and remote sensing technology, extract bay coastal wetland landscape of wetland when two phase data. Using the landscape ecology landscape index quantitative study on the landscape spatial pattern, respectively taking 12 types of landscape level index and 5 types of plaque index.From the Angle of time scales, to 30 m as the benchmark measure of data analysis, 2000/2009 of wetland landscape pattern change through time scales shown; From the Angle of space dimension, divided into 30/60/90/120/150/180/210/240 m different resolution, In the administrative area out of the cities, counties divided into two administrative region scale is analyzed, and the granularity of eight kinds of space scales to deduce, this can be classified into horizontal Angle. Again based on longitudinal Angle, combining time and space scales, the wetland landscape pattern in the change of the space-time multiscale analysis.The results showed that:(1) Based on the analysis of the coastal wetland landscape spatial pattern of time scales, with time scale, the rise of the liaodong bay coastal wetland landscape pattern of spatial heterogeneity.(2) Based on the analysis of the coastal wetland landscape spatial pattern of space scale, county, district units of wetland landscape damage is less than the municipal units, but also showed a trend of obvious damage.(3) Based on the analysis of coastal wetland landscape spatial pattern of time and space scales, coastal wetland landscape pattern in 2000/2009 destroyed, between the two phases of wetland landscape type is moving toward the fragmentation, diversified development, with spatial heterogeneity and biodiversity has been reduced.From 2000 to 2009, the wetland degradation, human factors interference with bay coastal wetland landscape pattern, wetland landscape pattern is simplified. The protection of wetland resources is of great urgency.