海岛土地利用与生态系统服务价值的时空变化OA

Based on the land use data of Zhoushan Island in 2000,2010,and 2020,this paper used the geo-information TUPU method(spatial transition mapping)to build transition TUPU of land use at two stages(2000-2010,2010-2020),calculated the changes of ecosystem service values(ESV),and obtained the transition TUPU of ESV.The results show that:(1)From 2000 to 2020,the land use structure of Zhoushan Island was dominated by forest land,while the areas of cultivated land,water,and wetland decreased and the area of construction land increased.(2)The transfer map of land use in Zhoushan Island was dominated by the conversion of cultivated land,water,and wetland into construction land,and the transformation of cultivated land to forest land.(3)During 2000-2020,the ESV of Zhoushan Island decreased from 1.812 6 × 109 yuan to 1.167 9 × 109 yuan.The conversion of cultivated land,water,and wetland into construction land was the main reason for the decrease in ESV,which indicated that the reclamation projects had a greater negative impact on the island's ESV.The"cultivated land →forested land"TUPU units mainly contributed to the increase of ESV,indicating the positive ecological benefits of Zhoushan's soil and water conservation and reforestation policies.The research results can serve as a reference for maintaining the safety of island ecosystems and promoting the sustainable economic and social development of islands.