Variations in Ecosystem Service Value and Its Driving Factors in the Nanjing Metropolitan Area of China

More than 60% of the world’s ecosystem services have deteriorated over past few decades. Studying spatio-temporal fluctuations in service value and its influencing factors is important for identifying regional issues, upholding ecological harmony, encouraging regionally healthy coordinated sustainable development. Ecosystem has so far been studied primarily relation to effect socioeconomic physical–geographical variables. However, trade-offs synergies among values also drive variations value. Few studies conducted date investigate between their impact on Therefore, this paper used sensitivity analysis, correlation a Geodetector examine changes within Nanjing metropolitan region. The decreased somewhat overall 2000 2020, with decline rate 2.19 million CNY/year. In comparison north region, was relatively higher south. water bodies had highest total value, followed by forest land, cultivated grassland, construction land unused having lowest overall. main factor spatial population density, while were digital elevation model, normalized difference vegetation index, precipitation. As result, area should tighten grip excessive growth. contrast expository strength single influence all individual elements under interaction significantly increased, index gross economic product most obvious variation influenced supply services, regulation support cultural services. need be considered land-use decisions.