沈阳市森林植被碳储量动态变化及其空间分布  

Dynamic change and spatial distribution of forest vegetation carbon storage in Shenyang

作　　者：云丽丽[1,2] 颜廷武 王铠[3] 杨春花 张慧东 YUN Lili;YAN Tingwu;WANG Kai;YANG Chunhua;ZHANG Huidong(Liaoning Academy of Forestry,Shenyang 110032,China;Liaoning Binglashan Forest Ecosystem National Research Station,Tieling 112404,China;Liaoning Academy of Forest Investigation and Planning,Shenyang 110122,China)

机构地区：[1]辽宁省林业科学研究院,辽宁沈阳110032 [2]辽宁冰砬山森林生态系统国家定位观测研究站,辽宁铁岭112404 [3]辽宁省林业调查规划监测院,辽宁沈阳110122

出　　处：《辽宁林业科技》2024年第4期7-10,共4页Liaoning Forestry Science and Technology

基　　金：沈阳市中青年科技创新人才支持项目(RC210294);辽宁省农业科学院基本科研业务费计划项目(2021HQ1910);辽宁省林业和草原局依托国家林草局科技创新平台研发项目(LLC[2022]8,LLC[2023]14)。

摘　　要：沈阳是中国东北地区的中心城市、重要的工业基地和先进装备制造业基地,碳排放总量和强度较高,是落实碳达峰碳中和目标的关键地区,林业碳汇能力的提升对于促进沈阳市碳中和目标的实现具有重要意义。利用森林资源二类调查数据分析了近20年沈阳市森林植被碳储量的时空动态和组成特征,结果表明:近20年来沈阳市森林植被碳储量和碳增汇能力得到明显提升,森林植被碳储量增加了84.39%,年固碳量增加48.89%;森林植被中,乔木林碳储量增长明显,碳储量贡献率由1998年的72.50%增长到2022年的87.69%,其主导地位得到了进一步巩固;疏林地植被碳储量逐年增加,经济林、灌木林、苗圃地植被碳储量逐年降低,四旁树表现出先下降后上升的趋势;全市森林植被碳储量在空间上呈现出从中心城区向周边县区逐渐增高的趋势,周边县区森林植被碳储量占全市森林植被碳储量的78.04%。该研究结果可为沈阳市森林植被碳汇能力的精准评估、森林城市建设和双碳目标的实现提供重要的科学依据。Shenyang,a central city in Northeast China,an important industrial base and an advanced equipment manufacturing base in China,has a high total carbon emission and carbon emission intensity,making it a key region for achieving the goal of carbon peak and carbon neutrality.Enhancing the capacity of forestry carbon sequestration is of great significance for promoting the realization of the carbon neutrality goal in Shenyang.This study analyzed the spatial-temporal dynamics and compositional characteristics of carbon storage in forest vegetation in Shenyang over the past 20 years using data from the second-class survey of forest resources.The results show that the carbon storage and carbon sequestration capacity of forest vegetation in Shenyang have significantly improved over the past 20 years,with the carbon storage of forest vegetation and the annual carbon sequestration capacity increasing by 84.39%and 48.89%,respectively.Among the forest vegetation,the carbon storage of arbor forests has grown significantly,with the contribution rate of carbon storage increasing from 72.50%in 1998 to 87.69%in 2022,further consolidating its dominant position.The carbon storage of sparse forests has increased year by year,while the carbon storage of economic forests,shrub forests,and nurseries has decreased year by year.Trees around the city showed a trend of first decreasing and then increasing.The carbon storage of forest vegetation in the city shows a trend of gradually increasing from the central urban area to the surrounding counties and districts,accounting for 78.04%of the total carbon storage of forest vegetation in the city.The results can provide important scientific basis for the precise assessment of the carbon sequestration capacity of forest vegetation,the construction of forest cities,and the realization of the dual-carbon goals in Shenyang.

关 键 词：沈阳市 森林植被 碳储量 

分 类 号：S718.56[农业科学—林学]