Land Use Changes in Blue-green Space and Their Impacts on Carbon Storage in Daxing'an Mountains of Heilongjiang Province from 2015 to 2020
[Objective]The changes in blue-green space land use were predicted and their impacts on carbon storage in Daxing'an Mountains were analyzed in order provide scientific strategic for realizing the"dual-carbon"goal guidance references.[Methods]Based on land utilization data for Daxing'an Mountains in 2015 and 2020,the driving factors of a binary logistic regression test were introduced into the PLUS model to predict the blue-green space land utilization pattern in 2030.The InVEST model was coupled with the results to analyze the impact of changes in blue-green space on carbon storage.The main driving land types of blue-green space causing changes in carbon storage were quantified and verified.[Results]① Blue-green space continued to grow from 2015 to 2030.Forest land increased over this time period,accounting for more than 60％of the blue-green space transfer,indicating that forest land held an absolute advantage.② From 2015 to 2020,blue-green space accounted for 96.52％of the total area of carbon storage growth space.Carbon storage for the natural development,blue-green space protection,and rapid urban development scenarios in 2030 were 1.459 4× 109 t,1.483 1 × 109 t,and 1.464 7× 109 t,respectively,mainly due to the transfer of a large amount of non-blue-green space to forest land and grassland.Protection of blue-green spaces had the most obvious effect on the increase of carbon storage.③ The degree of aggregation of forest land,grassland,and water areas in the blue-green space was significantly and positively correlated with carbon storage.Forest land and grassland were the first and second most dominant types of carbon storage changes.[Conclusion]Excellent ecological policies should be promoted in the future to protect the blue-green space and to improve the structural integrity of forest land and grassland so as to achieve the"dual-carbon"strategic goal in the Daxing'an Mountaions.
blue-greenspaceInVEST modelPLUS modelcarbon storageDaxing'an MountaionsHeilongjiang Province
国家科技期刊平台
NSTL
万方数据
