Past and prospective carbon stocks in forests of northern Wisconsin: a report from the Chequamegon-Nicolet National Forest Climate Change Response Framework
Past and prospective carbon stocks in forests of northern Wisconsin: a report from the Chequamegon-Nicolet National Forest Climate Change Response Framework
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威斯康星州北部森林过去和未来的碳储量：Chequamegon-Nicolet 国家森林气候变化响应框架的报告
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
C. Swanston
中科院分区：
文献类型：
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作者：
R. Birdsey;Y. Pan;M. Janowiak;S. Stewart;Sarah J. Hines;Linda R. Parker;S. Gower;J. W. Lichstein;K. McCullough;Fangmin Zhang;J. Chen;D. Mladenoff;C. Wayson;C. Swanston
本报告评估了北方威斯康星州450万公顷林地的过去和未来碳储量，包括干扰和管理对碳储量影响的基线评估和分析。碳密度（单位面积的碳储存量）平均为每公顷237兆克（Mg），国家森林土地的碳密度略高于其他所有权类别。在过去的十年中，北方威斯康星州森林的碳储量每年增加约1太克（Tg），即每年每公顷增加0.22兆克，其中大部分增加的是活生物量。在过去的世纪里，采伐、风和火一直是森林碳动态的主要驱动力。对于北方威斯康星州的所有森林类型，有可能通过允许更多的森林面积达到更老的年龄等级或通过提高生产力来增加土地上的库存。增加植树造林和减少毁林的机会有限，但利用生物量能源替代化石燃料的潜力是存在的。私人土地所有者有几种选择，可以参与碳市场或温室气体登记，并因采取额外行动减少排放或增加碳固存而获得一些信贷。这里使用的方法可加以调整，供其他区域或森林使用，以评估碳储存和管理对未来碳储存的影响。
This report assesses past and prospective carbon stocks for 4.5 million ha of forest land in northern Wisconsin, including a baseline assessment and analysis of the impacts of disturbance and management on carbon stocks. Carbon density (amount of carbon stock per unit area) averages 237 megagrams (Mg) per ha, with the National Forest lands having slightly higher carbon density than other ownership classes. Over the last decade, carbon stocks of northern Wisconsin forests have been increasing by about one teragram (Tg) per year or 0.22 megagrams per ha per year, with most of the increase in live biomass. Harvest, wind, and fire have been principal drivers of forest carbon dynamics over the last century. For all forest types in northern Wisconsin, there is potential to increase stocking on the land by allowing more of the forested area to reach older age classes or by increasing productivity. Opportunities to increase afforestation and reduce deforestation are limited, but the potential exists for utilizing biomass energy as a substitute for fossil fuels. There are several options for private landowners to participate in carbon markets or greenhouse gas registries and receive some credit for additional actions to reduce emissions or increase sequestration of carbon. The methods used here can be adapted for use by other regions or forests to assess carbon stocks and effects of management on future carbon stocks.