摘要
化石燃料的燃烧和土地利用转变是增加二氧化碳排放最主要的方式,对土地资源进行提前布局及规划,从而避免土地利用反复变化造成碳排放。基于PLUS模型模拟湖南省2020年土地利用数据,其土地利用模拟数据与土地利用现状数据的Kappa系数达0.84,模拟精度高;模拟了湖南省2030年生态、自然及经济情景下的土地利用,并基于InVEST模型模拟湖南省2030年不同情景下碳储量空间分布,2030年湖南省生态情景下林地面积最大,为125255.74 km 2,碳储量最大,其数值为3136255749 t;经济情景下建设用地最多,达到7792.31 km 2,碳储量最小,其数值为3130186347 t;基于湖南省2030年不同情景下土地利用模拟数据及碳储量空间分布数据,对湖南省未来土地利用规划作出数据支持。
Land-use transformation is also one of the main ways causing carbon emissions.In China,from^(2)000 to 2020,the construction land increased by about 94000 square kilometers,leading to a reduction of 350 million tons of carbon in the national soil carbon reservoir.Early layout and planning of land resources can help avoid repeated changes in land use that contribute to carbon emissions.Based on the PLUS model,the simulation of land-use data in Hunan Province in 2020 yielded a Kappa coefficient of 0.84 when compared to the actual land-use data,indicating high simulation accuracy.The simulation extended to predict land use in Hunan Province for 2030 under ecological,natural,and economic scenarios.Using the InVEST model,the spatial distribution of carbon storage under different scenarios in Hunan Province in 2030 was simulated.In the ecological scenario for 2030,the largest land area is covered by forests at 125255.74 square kilometers,with the highest carbon storage of 3136255749 tons.In the economic scenario,construction land covers the most area at 7792.31 square kilometers,with the smallest carbon storage of 3130186347 tons.Based on the simulated land-use data and carbon storage distribution data for different scenarios in Hunan Province in 2030,which provides data support for future land-use planning in the province.
作者
黄计
黄琦
邓森
HUANG Ji;HUANG Qi;DENG Sen(Hunan Province Engineering Survey Institute Limited Company,Loudi 417000,China;Hunan Province Saihui Project Management Limited Company,Loudi 417000,China)
出处
《城市勘测》
2024年第6期69-73,共5页
Urban Geotechnical Investigation & Surveying
