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首页> 外文期刊>Estuarine Coastal and Shelf Science >Mangrove carbon stocks in Pongara National Park, Gabon
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Mangrove carbon stocks in Pongara National Park, Gabon

机译：Maperove垫在Pongara国家公园，加蓬

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Mangroves are recognized for their valued ecosystem services to coastal areas, and the functional linkages between those services and ecosystem carbon stocks have been established. However, spatially explicit inventories are necessary to facilitate management and protection of mangroves, as well as providing a foundation for payment for ecosystem service programs such as REDD+. We conducted an inventory of carbon stocks in mangroves within Pongara National Park (PNP), Gabon using a stratified random sampling design based on forest canopy height derived from TanDEM-X remote sensing data. Ecosystem carbon pools, including aboveground and belowground biomass and necromass, and soil carbon to a depth of 2 m were assessed using measurements and samples from plots distributed among three canopy height classes within the park. There were two mangrove species within the inventory area in PNP, Rhizophora racemosa and R. harrisonii. R. harrisonii was predominant in the sparse, low-stature stands that dominated the west side of the park. In the east side of the park, both species occurred in tall-stature stands, with tree height often exceeding 30 m. Canopy height was an effective means to stratify the inventory area, as biomass was significantly different among the height classes. Despite those differences in aboveground biomass, the soil carbon density was not significantly different among height classes. Soils were the main component of the ecosystem carbon stock, accounting for over 84% of the total. The ecosystem carbon density ranged from 644 to 943 Mg C ha(-1 )among the three height classes. The ecosystem carbon stock within PNP is estimated to be 40,588 Gg C. The combination of pre-inventory information about stand conditions and their spatial distribution within the assessment area obtained from remote sensing data and a spatial decision support system were fundamental to implementing this relatively large-scale field inventory. This work exemplifies how mangrove carbon stocks can be quantified to augment national C reporting statistics, provide a baseline for projects involving monitoring, reporting and verification (i.e., MRV), and provide data on the forest composition and structure for sustainable management and conservation practices.
机译：为沿海地区的尊重生态系统服务确认红树林，并建立了这些服务和生态系统碳股的功能联系。然而，空间显式库存是促进管理和保护红树林的必要条件，并为Ecosystem服务计划（如Redd +）提供支付基础。我们在Pongara National Park（PNP）内的美洲红树脂中的碳股库存，Gabon采用了一种基于TANDEM-X遥感数据的森林冠层高度的分层随机抽样设计。使用来自公园内的三个冠层高度课程中分布的图表中分布的图表中，评估生态系统碳池和地下生物量和Necomass和Necromass和土壤碳的碳池和土壤碳的碳池和土壤碳碳。 PNP，Rhizophora Racemosa和R. Harrisonii的库存区域内有两种红树林。 R. Harrisiii在稀疏，低地位的稀疏，低地位占据了公园的西侧。在公园的东侧，这两个种类都发生在高高的展台上，树高度经常超过30米。天篷高度是分层库存区域的有效手段，因为生物量在高度类别中具有显着差异。尽管在地上生物量存在差异，但高度等级中的土壤碳密度没有显着差异。土壤是生态系统碳股的主要成分，占总数的84％以上。在三个高度类别中，生态系统碳密度范围为644至943mg C ha（-1）。 PNP内的生态系统碳储备估计为40,588 Gg C.对从遥感数据和空间决策支持系统获得的评估面积内的待机条件和其空间分布中的空间分布的组合是实现这一相对较大的基础-scale现场库存。这项工作举例说明了红树林碳股票可以量化为增强国家C报告统计数据，为涉及监测，报告和核查（即MRV）的项目提供基准，并提供有关可持续管理和保护实践的森林成分和结构的数据。

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