Sustainable Management of Tropical Forests Can Reduce Carbon Emissions and Stabilize Timber Production
Sustainable Management of Tropical Forests Can Reduce Carbon Emissions and Stabilize Timber Production
复制标题
热带森林的可持续管理可以减少碳排放并稳定木材生产
DOI：
--
复制
发表时间：
2016
影响因子：
4.6
通讯作者：
F. Putz
中科院分区：
文献类型：
--
作者：
N. Sasaki;G. Asner;Yude Pan;W. Knorr;P. Durst;Hwan;Issei Abe;A. Lowe;L. P. Koh;F. Putz
《联合国气候变化框架公约》的REDD+计划为管理热带森林以生产木材和减少碳排放提供了机会。为了确定合适的采伐技术，我们分析了 40 年选择性采伐期间两种采伐技术下的潜在木材产量和碳排放量减少量。我们发现，仅在热带生产林中使用减少影响采伐 (RIL) 技术就可以减少相当于热带森林砍伐和土地利用变化净排放量 29-50% 的碳排放量，同时还可以满足全球圆木需求的 45%。在森林管理（采用森林认证和 DNA 木材追踪以防止非法采伐）和木材转化实践（采用技术提高锯材回收率）方面采用 RIL plus (RIL+) 其他改进措施，将增加锯材的长期碳储存量，并将因采伐引起的易燃木材废物减少 14-184%。为此，每年需要约 20 亿美元或每 Mg CO2 1.86 美元的财政激励措施，以便各方采用 RIL+ 并防止过早重新进入采伐。我们的研究结果表明，未来的气候政策明确包括 RIL+，以满足 REDD+ 计划中“森林可持续管理”的条件，并将木制品中的碳算作合格的贸易信用额。
The REDD+ scheme of the United Nations Framework Convention on Climate Change has provided opportunities to manage tropical forests for timber production and carbon emission reductions. To determine the appropriate logging techniques, we analyzed potential timber production and carbon emission reductions under two logging techniques over a 40-year period of selective logging. We found that use of reduced-impact logging (RIL) techniques alone in tropical production forests could reduce carbon emissions equivalent to 29-50% of net emissions from tropical deforestation and land use change, while also supplying 45% of global round-wood demand. Adopting RIL plus (RIL+) other improvements in forest management (adopting forest certification and DNA timber tracking to prevent illegal logging) and wood conversion practices (adopting technology to increase recovery of sawn wood), would result in increasing long-term carbon storage in sawn-wood and reduce logging-induced fire-prone wood wastes by 14-184%. For this to happen, about US$2 billion or $1.86 per Mg CO2 in financial incentives are needed annually for parties to adopt RIL+ and to prevent premature re-entry logging. Our findings suggest that future climate policies explicitly include RIL+ to satisfy the “sustainable management of forests” proviso in the REDD+ scheme, and also count carbon in wood products as eligible credits for trading.