摘要
Abstract
Land use carbon sink accounting and spatiotemporal evolution analysis are the hot spots of land cover change research,and also one of the core keys to achieve carbon peak and carbon neutrality.As one of the first ecological civilization demonstration areas in Zhejiang Province,how to optimize land use pattern and effectively enhance carbon sink capacity is an urgent problem to be solved.Therefore,this paper analyzed the spatio-temporal evolution of carbon sink land in Zhejiang Province,estimated the total carbon sink and carbon sink intensity in Zhejiang Province from 1980 to 2020 based on the carbon sink coefficient method,standard deviation ellipse model and gravity transfer model,and analyzed the evolution law,and used the geographical detector model to detect the influencing fac-tors of the evolution of carbon sink intensity in Zhejiang Province.The results showed that:① The carbon sink land in Zhejiang Prov-ince showed a decreasing trend,the land area of cultivated land,grassland,ocean and unused land decreased,and the land area of forest land and water area increased.The occupied area of carbon sink land was 6 842.58km2,the new carbon sink land was only 555.93 km2,and the net loss was 6 286.65 km2.The occupied area was concentrated in the northern plain region of Zhejiang Province and all prefectural cities.② In Zhejiang Province,the total carbon sink and carbon sink intensity showed a downward trend in general.Lishui City ranked first,followed by Hangzhou City,Zhoushan City and Jiaxing City.③ The degree of land development and utilization was the dominant factor in the evolution of carbon sink intensity.Precipitation,slope,GDP density and population density also had a strong influ-ence on carbon sink intensity,and the influence of social and economic factors was increasing.关键词
碳汇用地/碳汇/多尺度/时空演变/影响因素/浙江省Key words
land for carbon sink/carbon sink/multi-scale/space-time evolution/influencing factors/Zhejiang Province分类
环境科学
