Xin Ying, Zou Meng-ling, Zhao Yu-sen
Ying Yong Sheng Tai Xue Bao. 2015 Nov;26(11):3443-50.
In order to explore forest restoration approach effect on carbon storage of severely burned area in Greater Xing'an Mountains, the carbon contents of tree, shrub, herb and litter from two plantations (Larix gmelinii and Pinus sylvestris var. mongolica) and natural secondary forest were determined, respectively, by using dry combustion method. The biomass of each component was obtained to estimate the distribution characterization of forest vegetation carbon storage by combing whole harvest method with average standard wood method. The results showed that, for both plantations and secondary forest, the average carbon content of shrub was higher than that of arbor and herb. In the L. gmelinii plantation, the average carbon contents of shrub, litter, arbor and herb were 45.8%, 45.3%, 44.4% and 33.6%, respectively. The average carbon content of shrub and arbor was more than 50% in P. sylvestris var. mongolica plantation, while that of arbor, shrub and litter was about 42% for the secondary forest. The biomass of arbor was higher than shrub and herb. In L. gmelinii plantation, the total biomass of vegetation and litter was 123.90 t · hm(-2), which was significantly higher than that of P. sylvestris var. mongolica plantation and secondary forest. The carbon storage of vegetation in L. gmelinii plantation was 50.97 t · hm(-2), among which the arbor was 49.87 t · hm(-2), accounting for 97.8% of the total carbon storage in forest vegetation, while the proportion of herb carbon storage only occupied 0.02%. The total carbon storage of plantations was higher than that of the secondary forest, suggesting a stronger capacity of carbon sink through artificial restoration on severely burned area in Greater Xing' an Mountains during this period.
为探究森林恢复措施对大兴安岭重度火烧区碳储量的影响，采用干烧法分别测定了两个人工林（兴安落叶松和樟子松）及天然次生林中乔木、灌木、草本和凋落物的碳含量。结合全收获法与平均标准木法获取各组分生物量，以估算森林植被碳储量的分布特征。结果表明，人工林和次生林中，灌木的平均碳含量均高于乔木和草本。在兴安落叶松人工林中，灌木、凋落物、乔木和草本的平均碳含量分别为45.8%、45.3%、44.4%和33.6%。樟子松人工林中灌木和乔木的平均碳含量超过50%，而次生林中乔木、灌木和凋落物的平均碳含量约为42%。乔木生物量高于灌木和草本。兴安落叶松人工林中植被和凋落物的总生物量为123.90 t·hm(-2)，显著高于樟子松人工林和次生林。兴安落叶松人工林中植被碳储量为50.97 t·hm(-2)，其中乔木碳储量为49.87 t·hm(-2)，占森林植被总碳储量的97.8%，而草本碳储量占比仅为0.02%。人工林的总碳储量高于次生林，表明此期间大兴安岭重度火烧区通过人工恢复形成碳汇的能力更强。
