A 16-Year Comparative Effectiveness Study of Traditional and Near-Natural Silvicultural Models—Taking the Small Class of Cunninghamia lanceolata Afforestation in Muwang Village,Yuanling County as an Example
Through the comparative study of the two small classes built by traditional and near natural afforesta-tion models in Yuanling County,it is expected to provide a reference for the afforestation projects in Yuanling County and Huaihua City.Two small classes of Cunninghamia lanceolata planted by traditional and near natural models in Muwang Village,Yuanling County were continuously observed for 16 years,and the DBH and height of afforestation trees were investigated every year.In March 2024,the preserved trees and forest stock of the two small classes were investigated.Regression analysis was used to predict DBH and tree height,and ecological effi-ciency was used to calculate and analyze carbon storage per unit area of the two models.The results show that there was no significant difference in the number of preserved trees and the growth of tree height between the two afforestation models.The average DBH and carbon storage per unit area were 16.80％and 115.63％higher than those of traditional afforestation models,respectively.There were 7 species of trees in the near-natural model group,most of which were fagaceae species in the local forest community.The biodiversity of near-natural model was richer than that of traditional model.The average height of the highest broad-leaved tree is 2.6m higher than that of Cunninghamia lanceolata,and the stand has the possibility of forming a multilayer forest.The observation data show that the near nature model is superior to the traditional model in many aspects,and it is an excellent af-forestation model that can be popularized and practiced locally.
near-natural silvicultural modelregression analysiscarbon stocksustainable forest managementYuanling County
NETL
NSTL
万方数据
