东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2013年
12期
116-120
,共5页
王小明%李凤日%贾炜玮%陈东升
王小明%李鳳日%賈煒瑋%陳東升
왕소명%리봉일%가위위%진동승
天然次生林%阔叶树%树高-胸径模型
天然次生林%闊葉樹%樹高-胸徑模型
천연차생림%활협수%수고-흉경모형
Natural secondary forest%Broad-leaved tree%Height-diameter equation
基于帽儿山实验林场30块天然次生林标准地中2875株样木的实测胸径和树高数据,应用20个常见的树高-胸径模型来模拟帽儿山林场天然次生林中主要树种白桦( Betula plta yphylla Suk.)、椴树(T ilia L.)、色木(Acer mono maxim)、榆树(Ulmus spp)、杨树(Populus)、蒙古栎(Querusmongolica)、核桃楸(Juglans mandshurica Maxim)、水曲柳(Fraxinus mna dshurica Rupr)和黄波椤(Phellodendron amurense Rupr)的树高-胸径关系,选出了每个树种树高-胸径最优模型形式,全部最优模型的相关系数达到了0.9以上,均方根误差介于1.0~1.5,残差分布均匀,模型的拟合效果较好。应用部分独立样本检验数据对各树种最优模型进行检验,模型的平均误差很小,预估精度达到了98%以上,表明这些模型可以用来描述该树种树高的变化规律,可以为该区域开展森林资源调查和次生林结构调整、林分生长与收获等方面的研究提供理论基础。
基于帽兒山實驗林場30塊天然次生林標準地中2875株樣木的實測胸徑和樹高數據,應用20箇常見的樹高-胸徑模型來模擬帽兒山林場天然次生林中主要樹種白樺( Betula plta yphylla Suk.)、椴樹(T ilia L.)、色木(Acer mono maxim)、榆樹(Ulmus spp)、楊樹(Populus)、矇古櫟(Querusmongolica)、覈桃楸(Juglans mandshurica Maxim)、水麯柳(Fraxinus mna dshurica Rupr)和黃波欏(Phellodendron amurense Rupr)的樹高-胸徑關繫,選齣瞭每箇樹種樹高-胸徑最優模型形式,全部最優模型的相關繫數達到瞭0.9以上,均方根誤差介于1.0~1.5,殘差分佈均勻,模型的擬閤效果較好。應用部分獨立樣本檢驗數據對各樹種最優模型進行檢驗,模型的平均誤差很小,預估精度達到瞭98%以上,錶明這些模型可以用來描述該樹種樹高的變化規律,可以為該區域開展森林資源調查和次生林結構調整、林分生長與收穫等方麵的研究提供理論基礎。
기우모인산실험림장30괴천연차생림표준지중2875주양목적실측흉경화수고수거,응용20개상견적수고-흉경모형래모의모인산림장천연차생림중주요수충백화( Betula plta yphylla Suk.)、단수(T ilia L.)、색목(Acer mono maxim)、유수(Ulmus spp)、양수(Populus)、몽고력(Querusmongolica)、핵도추(Juglans mandshurica Maxim)、수곡류(Fraxinus mna dshurica Rupr)화황파라(Phellodendron amurense Rupr)적수고-흉경관계,선출료매개수충수고-흉경최우모형형식,전부최우모형적상관계수체도료0.9이상,균방근오차개우1.0~1.5,잔차분포균균,모형적의합효과교호。응용부분독립양본검험수거대각수충최우모형진행검험,모형적평균오차흔소,예고정도체도료98%이상,표명저사모형가이용래묘술해수충수고적변화규률,가이위해구역개전삼림자원조사화차생림결구조정、림분생장여수획등방면적연구제공이론기출。
Twenty height-diameter equations were evaluated for Betula platyphylla Suk, Tilia L., Acer mono maxim, Ulmus spp, Populus, Querusmongolica, Juglans mandshurica Maxim, Fraxinus mandshurica Rupr and Phellodendron amurense Rupr of natural secondary forest at Maoershan Forestry Center.The optimal models of each species were selected.The correlation coefficients of all optimal models were more than 0.9, the root mean square errors were between 1.0 and1.5, and the dis-tribution of residuals were uniformity.Therefore, the effect of models was very good.The optimal models of each species were verified to base on the independent sample data, the average error of model was very small, and the prediction accu-racy reached more than 98%, so these models can be used to describe the change rule of the tree height, and provide the theoretical basis for forest resource survey, forest structure adjustment and stand growth and yield in the region.