Research on ecosystem service value is a hot spot in ecology at present. Based on the Costanza's ecosystem service value theory and combined with the landuse change traits in the past 30 years in Chongqing urban

the impacts of landuse change on ecosystem service value are analyzed. The remote sense images in 1975

1987

1995

2000

and 2005 are interpreted and the landuse drafts are obtained. Single dynamic landuse degree and landuse extent index are used to indicate the landuse change. According to each type of landuse and its single ecosystem service value

the ecosystem service value is calculated

which is used to analyze the whole change in ecosystem service value and the change in the structure of ecosystem service value. In view of the influence of landuse on ecosystem service value

ecosystem effect index and ecosystem effect degree are introduced to ascertain the influence extent and absolute influential power resulting from the landuse change. Results indicate that

firstly

the expansion speed of constructive land in the area should be controlled properly and the intensive degree of constructive land in mountainous city should be promoted. Secondly

in the scale of controlling economic rising

the increasing speed of landuse extent should be slowed down. Lastly

the planning of eco-water and eco-forestry should be strengthened in order to enhance ecosystem service value in mountainous city.