Influence of Land Use Changes on the Value of Ecosystem Services in Ji'nan from 1980 to 2020
Faced the problem of resource shortage,unreasonable land utilization types and degradation of ecological systems,exploring the impact of land use change on the value of ecosystem services is of great significance for formulating appropriate policies and measures on territorial spatial planning,natural re-source management and ecological civilization construction.Selecting Ji'nan city as the study area,the change of land use structure and transfer among land use types from 1980 to 2020 has been studied,the e-cosystem service value has been calculated,and ecological contribution rate of different land use types to the change of ecosystem service value has been analyzed.It is showed that:①The construction land area shows a trend of continuous increase within the whole period.The area of cultivated land,forest land,grassland and water area show a fluctuating change from 1980 to 2000,but are in a continuous decline be-tween the year 2000 and 2020.②From 1980 to 2020,the total service value of ecosystem show a general trend of down-up-down.To be specific,four main service values,such as supply,regulation,support and culture all decrease to varying degrees,and reach the largest degree from 2005 to 2010.③Service value change of ecosystem in Ji'nan city is mostly affected by the cultivated land,which reduces tremendously in the study area due to the urban development.It will cause a significant reduction in arable land area,fol-lowed by significant impacts on forests,grasslands,and water bodies.
Land use changeecosystem service valueecological contribution rateJi'nan city
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