大竹县森林植被碳储量及其价值评价

Carbon Storage and Value Evaluation of Forest Vegetation in Dazhu County

基于大竹县2019年森林资源规划设计调查(简称“二类调查”)数据,运用森林蓄积量扩展法等数量模型,全面评价了大竹县2019年森林植被碳储量及其价值,并进一步分析了乔木林内部不同龄组、不同优势树种间碳储量构成,以全面掌握大竹县2019年森林植被碳储量状况,为区域提高森林生态服务功能、增强森林固碳能力等提供一定的决策参考。结果表明:2019年大竹县森林植被碳储量为414.09万t,相当于固定二氧化碳1518.47万t,其中,乔木林占各森林类型总碳储量的比例最大,为94.06%;其次是竹林,为4.02%;灌木林最小,仅占各森林类型总碳储量1.92%。

Based on the data of forest resources planning and design survey in Dazhu County in 2019(hereinafter referred to as"class II survey"),this study comprehensively evaluates the carbon reserves and value of forest vegetation in Dazhu County in 2019 by using quantitative models such as forest stock expansion method.The composition of carbon reserves among different age groups and different dominant tree species in arbor forest is further analyzed in order to comprehensively grasp the carbon storage status of forest vegetation in Dazhu County in 2019,which provides some decision-making reference for improving forest ecological service functions and enhancing forest carbon sequestration capacity in the region.Research shows that in 2019,the carbon storage of forest vegetation in Dazhu County was 4.1409 million tons,which is equivalent to 15.1847 million tons of fixed carbon dioxide.Among them,arbor forest accounted for the largest proportion of the total carbon storage of all forest types,which is 94.06%;The second is bamboo forest,which is 4.02%;Shrub forest is the smallest,accounting for only 1.92%of the total carbon storage of each forest type.