In order to explore the optimization strategy of regional ecological system,the Jianghan Plain of Hubei Province is taken as an example, using AHP method, LMDI decomposition model based on expert knowledge, focusing on land utilization characteristic of this area and factors affecting the ecosystem sys- tem service value changes. The result shows that： （1） since 1995, the area of cultivated land, forest land, grassland and natural reservation has been reduced, and the area of water and construction land has in- creased, land--use structure w...
