Conventional tree height–diameter relationships significantly overestimate aboveground carbon stocks in the Central Congo Basin
Conventional tree height–diameter relationships significantly overestimate aboveground carbon stocks in the Central Congo Basin
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传统的树高-直径关系显着高估了刚果盆地中部的地上碳储量
DOI：
10.1038/ncomms3269
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发表时间：
2013
影响因子：
16.6
通讯作者：
H. Verbeeck
中科院分区：
文献类型：
--
作者：
E. Kearsley;T. de Haulleville;K. Hufkens;Alidé Kidimbu;B. Toirambe;G. Baert;D. Huygens;Yodit Kebede;P. Defourny;J. Bogaert;H. Beeckman;K. Steppe;P. Boeckx;H. Verbeeck
减少毁林和森林退化造成的排放的政策在很大程度上取决于对热带森林碳储量的准确估计。在这里，我们提供了刚果民主共和国扬比姆中部刚果盆地的第一个实地碳储量数据。我们发现完整的原始森林的平均地上碳储量为 162±20 Mg C ha−1，这明显低于刚果盆地外围地区记录的碳储量。从中非得出的最佳可用树高-直径关系并不能为我们的研究区域提供准确的树冠高度估计。如果使用这些不准确的关系，地上碳储量将被高估 24%。与盆地外围地区的森林相比，所研究的森林的高度较低，这证实了遥感模式。此外，我们发现平均土壤碳储量为 111±24 Mg C ha−1，受到当前土地利用变化的轻微影响。制定减少森林损失造成的排放的政策需要准确估计热带森林碳储量。通过观察刚果盆地的中心区域，Kearsley 等人发现，中部非洲高度与直径关系的不一致导致了区域之间的高估。
Policies to reduce emissions from deforestation and forest degradation largely depend on accurate estimates of tropical forest carbon stocks. Here we present the first field-based carbon stock data for the Central Congo Basin in Yangambi, Democratic Republic of Congo. We find an average aboveground carbon stock of 162±20 Mg C ha−1 for intact old-growth forest, which is significantly lower than stocks recorded in the outer regions of the Congo Basin. The best available tree height–diameter relationships derived for Central Africa do not render accurate canopy height estimates for our study area. Aboveground carbon stocks would be overestimated by 24% if these inaccurate relationships were used. The studied forests have a lower stature compared with forests in the outer regions of the basin, which confirms remotely sensed patterns. Additionally, we find an average soil carbon stock of 111±24 Mg C ha−1, slightly influenced by the current land-use change. Accurate estimates of tropical forest carbon stocks are needed for policies to reduce emissions from loss of forests. By looking at a central area in the Congo Basin, Kearsleyet al.find that inconsistencies in height–diameter relationships across Central Africa cause overestimations between regions.
影响因子：
18.3
作者：
Huntingford, Chris;Zelazowski, Przemyslaw;Cox, Peter M.
通讯作者：
Cox, Peter M.