Simulation of Land Use Change and Response of Ecosystem Service Value of Fuzhou City Based on PLUS Model
Under the background of implementing the strategy of strengthening the provincial capital and ecological province,it is of great significance to coordinate the economic development and ecological protection of Fuzhou by studying the changes of land use and ecosystem service value in a certain period of time in the future.Based on the land use data of two periods(2005 and 2020),this study used patch-generating land use simulation model(PLUS)and equivalent factor method to simulate the future chan-ges in land use and ecosystem service value of Fuzhou at the historical development speed.The results showed that the construction land in Fuzhou increased by 282.93 km2 from 2005 to 2020,with an increase of 62.1%.At the historical development speed,the area will reach 987.89 km2 by 2035,which will increase by 249.54 km2 compared with 2020.The cultivated land decreased the most,which decreased by 131.6 km2 in the first 15 years and will continue to decrease by 113.21 km2 in the next 15 years.The expansion of construction land in Fuzhou mainly comes from the occupation of cultivated land,forest land,grassland and water bodies.The value of ecosystem services in Fuzhou decreased by 2.615 billion yuan in the first 15 years,and will continue to decrease by 2.158 billion yuan in the next 15 years at a historical development speed.In the first 15 years and the last 15 years,every 1%change in land use structure in Fuzhou City would lead to a decrease of about 9.18%and 8.86%in the value of ecosystem services in the region.In the territorial spatial planning of Fuzhou City,attention should be paid to the balance between economic and ecological benefits,and the"three zones and three lines"should be clearly defined.In the rapidly urbanizing coatstal area of Fuzhou,ecological protection plan-ning for water bodies and forest land should be rationallly designed to prevent encroaching on land with high ecosystem service value during the development process.
PLUS modelEcosystem Service Value(ESV)land use simulationFuzhou city
NETL
NSTL
万方数据
