A comparative analysis on spatial patterns and processes of three typical wetland ecosystems in 3H area, China

摘要

The comparative study on the different components in spatial pattern is of paramount importance to the revealing of the interaction and feedback mechanism among the different components, and it is very useful for us to understand the overall correlation between structure-function and pattern-process of the wetland system. By selecting the wetland system in the estuary of Yellow River Delta, Huaihe-Hongze river-lake and Baiyangdian lake-marsh as typical regions, this study analyze comparatively on the similarities, the differences and the internal connections of the three major typical wetland systems in 3H Area in view of the characteristics of the wetland landscape spatial pattern and their changes. The study utilizes totally six periods of remote sensing images (during 1970s-2000s) to interpret the chronological spatial data of the wetland system landscape over the recent 30 years, and also apply the approach of classic landscape ecology method to analyze the spatial pattern status and the scenario playback of the wetland system in each typical region. The results discover that all the typical wetland systems in 3H Area present a trend of degradation and different driving mechanisms, and reflect the complex pattern of wetland systems in the 3H Area.