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首页> 外文期刊>Wetlands >Allometric Models for Estimating Aboveground Biomass, Carbon and Nitrogen Stocks in Temperate Avicennia marina Forests
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Allometric Models for Estimating Aboveground Biomass, Carbon and Nitrogen Stocks in Temperate Avicennia marina Forests

机译：温带Avicennia滨海森林地上生物量，碳和氮储量的估测模型

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摘要

Estuarine ecosystems are changing rapidly in response to anthropogenic impacts. Mangrove expansion in New Zealand is mainly attributed to favourable climatic conditions and increased sedimentation due to land use change. This expansion is associated with large scale shifts in ecosystem structure and function, with significant potential impacts on coastal carbon and nitrogen storage. A fundamental aspect of understanding these impacts is accurately estimating storage within above ground biomass. We developed allometric equations to estimate above ground biomass, carbon and nitrogen stocks for temperate Avicennia marina subsp. Australasica growing near the southern limit of the species distribution range in New Zealand. We compare these equations with existing equations for Avicennia spp. Tree height, trunk circumference, tree canopy volume and tree canopy area were strong predictors of total above ground biomass, carbon, and nitrogen stocks. Carbon and nitrogen stocks accounted for 41.23 +/- 0.40 % and 1.28 +/- 0.03 %, respectively, of total above ground biomass. This study is the first to develop allometric equations to estimate biomass, carbon and nitrogen stocks in temperate Avicennia marina. These equations can be used to improve assessments of the impact of changes on mangrove forest structure and function, in particular carbon and nitrogen storage.
机译：河口生态系统正在响应人为影响而迅速变化。新西兰红树林的扩张主要归因于有利的气候条件和土地利用变化带来的沉积增加。这种扩张与生态系统结构和功能的大规模转变有关，对沿海的碳和氮存储具有重大的潜在影响。理解这些影响的一个基本方面是准确估算地上生物量的存储量。我们开发了异速方程，以估算温带Avicennia滨海亚种的地上生物量，碳和氮储量。在新西兰物种分布范围的南部界限附近生长的澳大利亚。我们将这些方程与Avicennia spp的现有方程进行比较。树高，树干周长，树冠体积和树冠面积是预测地上生物量，碳和氮储量总量的重要指标。碳和氮储量分别占地上生物量总量的41.23 +/- 0.40％和1.28 +/- 0.03％。这项研究是第一个开发异速方程的方法，以估算温带Avicennia滨海地区的生物量，碳和氮储量。这些方程式可用于改进评估对红树林结构和功能（特别是碳和氮存储）的影响的评估。

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