为了探究冀北地区华北落叶松与樟子松人工林生物碳汇能力的差异,对其人工林的最大生物碳贮量进行了比较。结果表明:在胸径相同的情况下,单株华北落叶松的干、枝及地上生物量均高于樟子松,而叶生物则相反;在林分平均胸径小于19cm时,华北落叶松人工林地上部分生物量高于樟子松人工林,大于19cm时,樟子松林生物量高于华北落叶松林。在胸径相同时,华北落叶松单株林木的碳贮量高于樟子松;在林分平均胸径小于19cm时,华北落叶松人工林的碳贮量高于樟子松林,大于19cm时,樟子松林高于华北落叶松林。
In order to understand the differences between the Larix principis-rupprechtii and Pinus sylvestris var.mongolica plantations in the biomass carbon storage of in the northern Hebei area,the different maximum biomass carbon storage of the two kinds of plantations was compared.The results shows that Larix principis-rupprechtii was higher than Pinus sylvestris var.mongolica in the individual biomasses of stem,branch and total aboveground,however,for the leaves biomass,Pinus sylvestris var.Mongolica was higher than that of the Larix principis-rupprechtii,when their DBHs were equal.When stand average breast diameter less than 19cm,the stand biomass of Larix principis-rupprechtii plantation was higher than that of Pinus sylvestris plantation,and when the DBH was more than 19cm,the stand biomass of Pinus sylvestris var.mongolica was higher than that of Larix principis-rupprechtii.For individual tree carbon storage,Larix principis-rupprechtii was higher than that of Pinus sylvestris var.Mongolica.For the forest carbon storage,when the stand average breast diameter was less than 19cm,the total carbon storage of Larix principis-rupprechtii plantation was higher than that of Pinus sylvestris plantation,and when the DBH was more than 19cm,the stand carbon storage of Pinus sylvestris var.mongolica was higher than that of Larix principis-rupprechtii.
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