2000-2020年浙江省陆域生态系统碳库碳储量演变及提升路径

Evolution characteristics and improvement path of terrestrial ecosystem carbon storage in Zhejiang Province from 2000 to 2020

陆域生态系统碳库(以下简称陆域碳库)是地球系统碳循环的重要组成部分,其碳储量的持续增加,对于以自然的解决方案推动气候治理具有重要意义。以自然生态资源相对丰富的浙江省为例,运用生态系统服务和权衡的综合评估模型(InVEST模型)Carbon模块构建浙江省陆域碳库碳储量核算方法,测算了浙江省2000—2020年的碳储量演变情况,识别碳储量变化特征及关键驱动因素。结果表明,2000—2020年浙江省陆域碳库碳储量增长了11.1%,森林碳库碳储量提升对其增长贡献最大;最后,从碳库类型管控、碳库提质和碳库增汇激励3个角度出发,结合国土空间保护修复与用途管制工作,提出生态系统固碳能力提升路径。

The carbon pool of terrestrial ecosystem is an important part of the carbon cycle in the earth,and its continuous increase is of great significance for promoting the formation of nature-based solutions to climate governance.Zhejiang Province,which is relatively rich in natural ecological resources,was taken as an example to construct the carbon storage accounting method of terrestrial carbon pools by using Carbon module of integrated valuation of ecosystem services and trade-offs model(InVEST model).Based on this,the evolution of regional carbon storage in the past 20 years was measured.Further,the study identified the characteristics and key driving factors of carbon storage.The results showed that the carbon storage of terrestrial carbon pools in Zhejiang Province in 2020 increased by 11.1%compared with that in 2000,and the increase of forest stock was the biggest contribution to its growth.From the perspectives of carbon type control,carbon pool quality improvement and carbon pool replenishment incentive,this study proposed countermeasures to improve the carbon sequestration capacity of ecosystems.At the same time,these proposals combined with two parts work of space management,one of them was national space conservation and restoration,another was the regulation of the use of national space.