Degradation in carbon stocks near tropical forest edges.
Degradation in carbon stocks near tropical forest edges.
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DOI：
10.1038/ncomms10158
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发表时间：
2015-12-18
影响因子：
16.6
通讯作者：
King H
中科院分区：
文献类型：
--
作者：
Chaplin-Kramer R;Ramler I;Sharp R;Haddad NM;Gerber JS;West PC;Mandle L;Engstrom P;Baccini A;Sim S;Mueller C;King H
基于土地覆盖类型的碳储量估算对于气候变化评估和景观管理至关重要，但实地和理论证据表明，森林破碎化减少了森林边缘的碳储量。在这里，利用遥感的泛热带生物量和土地覆盖数据集，我们估计森林边缘前500米内的生物量平均比森林内部低25%，并且从森林边缘延伸到1.5公里处减少10%。这些发现表明，IPCC第一级方法将热带森林的碳储量高估了近10%。对森林边缘退化的适当核算将为更好的景观和森林管理及政策以及景观和国家层面的碳储量评估提供信息。森林破碎化被认为减少了森林边缘的碳储量。在这里，作者利用遥感数据集表明，在森林边缘500米范围内，生物量降低了25%，并且表明破碎化导致全球热带森林碳储量减少了近10%。
Carbon stock estimates based on land cover type are critical for informing climate change assessment and landscape management, but field and theoretical evidence indicates that forest fragmentation reduces the amount of carbon stored at forest edges. Here, using remotely sensed pantropical biomass and land cover data sets, we estimate that biomass within the first 500 m of the forest edge is on average 25% lower than in forest interiors and that reductions of 10% extend to 1.5 km from the forest edge. These findings suggest that IPCC Tier 1 methods overestimate carbon stocks in tropical forests by nearly 10%. Proper accounting for degradation at forest edges will inform better landscape and forest management and policies, as well as the assessment of carbon stocks at landscape and national levels. Forest fragmentation is thought to reduce carbon storage at forest edges. Here, using remote sensing datasets, the authors show that biomass is 25% lower within 500 m of the forest edge, and suggest that fragmentation results in a global reduction in tropical forest carbon stocks by nearly 10%.