摘要
Abstract
Using land use type data from four periods of 1990,2000,2010 and 2020 in the Bijie experimental area,the changes of different land use types in the experimental area over the past 30 years were studied.The InVEST model was used to estimate the carbon storage of dif-ferent ecosystems in the experimental area,and the temporal and spatial changes of ecosystem carbon storage under the background of signifi-cant success in ecological construction were analyzed.The results showed that from 1990 to 2020,there were significant changes in land use types in the Bijie City,with an increase in the area of forest land and construction land,a decrease in the area of cultivated land and grass-land,and the main conversion of cultivated land to forest land,grassland and construction land,while the main conversion of grassland to cul-tivated land and forest land.The total carbon storage of the ecosystem in Bijie City from 1990 to 2020 was 51.21×107-52.37×107 t,the total carbon storage increased by 1.16×107 t,with an average annual increase of 0.04×107 t.The carbon storage in Bijie City showed a spatial dis-tribution trend of high in the west and low in the east.From 1990 to 2020,the carbon storage of forest land and construction land increased,while the carbon storage of cultivated land and grassland decreased.关键词
土地利用类型/InVEST模型/碳储量/生态系统/时空变化Key words
Land-use type/InVEST model/Carbon storage/Ecosystem/Temporal and spatial change分类
资源环境
