Assessment of carbon stores in tree biomass for two management scenarios in Russia
Assessment of carbon stores in tree biomass for two management scenarios in Russia
复制标题
俄罗斯两种管理情景下树木生物量碳储存的评估
DOI：
10.1088/1748-9326/8/4/045019
复制
发表时间：
2013
影响因子：
6.7
通讯作者：
O. Krankina
中科院分区：
文献类型：
--
作者：
J. Shuman;H. Shugart;O. Krankina
陆地碳储量及其变化的准确量化对于提高对全球碳动态的认识至关重要。森林管理影响碳固存和释放模式，林隙模型非常适合于评估碳储量。一个基于个人的森林动态，FAREAST的差距模型，适用于整个俄罗斯估计管理情景下的地上碳储量。目前的生物量从库存的森林在俄罗斯进行比较，以模型为基础的估计和潜在的生物量水平估计为一组简化的林业做法。目前俄罗斯东部的碳储量低于西北部和南部，低于模型估计值，可能是由于高干扰率。模型推导的碳储存在所有地区之间没有显着不同的模拟“当前”和假设的“平均年龄”的管理策略，使用150年和210年的轮换。允许150年后自然成熟和收获的模拟表明，所有地区的地上碳都有显著增加。然而，要达到这一条件，不可能让树龄达150年的森林不被砍伐。这些应用程序表明的价值的立场模拟器，适用于广泛的地区，如俄罗斯，作为工具，以评估管理制度对地上碳储量的影响。
Accurate quantification of terrestrial carbon storage and its change is of key importance to improved understanding of global carbon dynamics. Forest management influences carbon sequestration and release patterns, and gap models are well suited for evaluating carbon storage. An individual-based gap model of forest dynamics, FAREAST, is applied across Russia to estimate aboveground carbon storage under management scenarios. Current biomass from inventoried forests across Russia is compared to model-based estimates and potential levels of biomass are estimated for a set of simplified forestry practices. Current carbon storage in eastern Russia was lower than for the northwest and south, and lower than model estimates likely due to high rates of disturbance. Model-derived carbon storage in all regions was not significantly different between the simulated ‘current’ and hypothetical ‘even-aged’ management strategies using rotations of 150 and 210 years. Simulations allowing natural maturation and harvest after 150 years show a significant increase in aboveground carbon in all regions. However, it is unlikely that forests would be left unharvested to 150 years of age to attain this condition. These applications indicate the value of stand simulators, applied over broad regions such as Russia, as tools to evaluate the effect of management regimes on aboveground carbon storage.