A new estimation of ecosystem service values of Jiangsu Province based on land use change
基于土地利用变化的江苏省生态服务价值新评估

Based on the cadastral data of Jiangsu Province from 1996 to 2004, this paper calculated and analyzed the changes of ecosystem service values, and established the indicator (EG) of ecosystem service values in response to economic development. The results showed that the total ecosystem service values of Jiangsu descended from 208.07 billion yuan to 200.73 billion yuan during the period of 2001 and 2004, and the descending ratio was 3.53%, namely 7.34 billion yuan. The dominant factor of the decline was that the large area of wetlands translated directly or indirectly into arable land, aquaculture and construction land. The values of ecosystem service of southern Jiangsu increased but central and northern Jiangsu dropped from 1996 to 2004. During the 8 years, the EG value of Jiangsu was less than zero per year, indicating the economic growth in Jiangsu on the value of ecosystem services was mainly negative. The value of EG in southern Jiangsu changed in a small scope, indicating that in southern Jiangsu GDP per capita had very small effort on ecosystem services. The value of EG in central Jiangsu showed the increasing trend from 2002 to 2004, indicating that the GDP per capita growth consumed the value of ecosystem services fewer and fewer. Since 1998, the value of EG in northern Jiangsu showed a downward trend, indicating that economic growth consumed the value of ecosystem services more and more.