2000—2020年台州市陆地生态系统碳储量对土地利用变化的响应研究

Study on Response of Carbon Storage of Terrestrial Ecosystem to Land Use Change in Taizhou City from 2000 to 2020

土地利用变化是陆地生态系统碳储量变化的重要影响因素。本研究以台州市为例,分析其2000—2020年土地利用及陆地生态系统碳储量的变化特征。InVEST模型计算结果显示,2000—2020年,台州市陆地生态系统碳储量累计下降186.8万t。2000—2020年台州市土地利用变化趋势主要为耕地转为建设用地,2010—2020年转化速度有加快的趋势,有519.2 km^(2)耕地转为建设用地,使得这一时期台州市陆地生态系统碳储量下降速度加快。碳中和路径下,台州市应着力提高城区集聚度和首位度,严格限制耕地转为建设用地,提高陆地生态系统碳储量。

Land use change is an important factor affecting the change of carbon storage in terrestrial ecosystems.This study takes Taizhou City as an example to analyze the change characteristics of land use and terrestrial ecosystem carbon storage from 2000 to 2020.InVEST model calculation results show that from 2000 to 2020,the carbon storage of the terrestrial ecosystem in Taizhou City has decreased by 1.868 million tons.The land use change trend of Taizhou City from 2000 to 2020 is mainly the conversion of cultivated land to construction land,and the conversion rate is accelerating from 2010 to 2020,with 519.2 km^(2)of cultivated land converted to construction land,which accelerates the decline rate o£carbon storage in the terrestrial ecosystem of Taizhou City during this period.Under the path of carbon neutrality,Taizhou City should focus on improving the urban agglomeration and primacy,strictly restrict the conversion of cultivated land to construction land,and improve the carbon storage of terrestrial ecosystems.