河南省森林固碳量与碳汇价值评估OA北大核心CSTPCD

This study was carried out to understand the current status of forest carbon sequestration and carbon sink value in the middle and lower reaches of the Yellow River,and to contribute to the ecological protection and high-quality development of the Yellow River Basin.Based on the data of national forest inventory and land survey,the principle of accumulation conversion method and the improved continuous function method of biomass conversion factor were used to measure the dynamic changes of forest carbon sequestration and carbon sink value in Henan Province.The results showed that the forest carbon sequestration in Henan Province increased from 1.76×108 t to 2.78×108 t from 2008 to 2018,and the forest type with higher annual carbon sequestration was mixed broadleaf forest and quercus.The distribution of carbon sequestration by age class was the largest in young forests and the smal-lest in over mature forests.The spatial pattern of forest carbon sequestration was"high in the west and south,low in the east and north",mainly distributed in Nanyang,Luoyang and Sanmenxia.The value of forest carbon sinks increased from 49.247 billion yuan in 2008 to 77.868 billion yuan in 2018,an average annual increase of 2.862 bil-lion yuan.The carbon sink value of mixed broadleaf forest,quercus and populus accounted for 79.93%of the carbon aggregation value in 2018.Finally,suggestions on carbon sequestration capacity and realization of forest carbon sink value were made,for the high-quality development in the Yellow River Basin.