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作 者:李肇镁 Li Zhaomei(Youxi State-owned Forest farm,Youxi 365100,China)
机构地区:[1]尤溪国有林场,福建尤溪365100
出 处:《安徽农学通报》2018年第11期76-77,132,共3页Anhui Agricultural Science Bulletin
摘 要:在尤溪县马尾松人工林郁闭度0.8以上的林分设置标准地,调查测定林分平均胸径、平均高、优势高、单位面积上的蓄积量、胸高断面积和株数等因子。以林分优势高为辅助变量,林分蓄积量为因变量,采用免疫进化算法建立标准林分蓄积量模型;再以林分形高为因变量,林分优势高为辅助变量,通过多方程的拟合对比,建立合适的林分形高模型,据以编制了尤溪县马尾松人工林标准表,为森林资源清查中林分疏密度和蓄积量的确定提供了科学依据。In the standard stand of canopy density above 0.8 in Pinus massoniana plantation in Youxi County,the average diameter at breast height,average height,dominant height,volume per unit area,chest area and number oftrees were investigated and determined. With high stand advantage as an auxiliary variable,and the stand per hect-are of the stand as the dependent variable,the standard stand volume model was established using the immune evolutionary algorithm. Taking the forest stand height as the dependent variable and the forest stand high as the auxiliary variable,a suitable forest stand height model was established through multi-equation fitting comparison. Based onthis,the standard table of the Pinus massoniana plantation in Youxi County was compiled. The scientific basis for thedetermination of forest density and stock volume in resource inventory is provided.
分 类 号:S758.62[农业科学—森林经理学]
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