Mangrove canopy height globally related to precipitation, temperature and cyclone frequency
Mangrove canopy height globally related to precipitation, temperature and cyclone frequency
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DOI：
10.1038/s41561-018-0279-1
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发表时间：
2018-12
影响因子：
18.3
通讯作者：
M. Simard;L. Fatoyinbo;C. Smetanka;V. Rivera‐Monroy;E. Castañeda‐Moya;N. Thomas;Tom Van der Stocken
中科院分区：
文献类型：
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作者：
M. Simard;L. Fatoyinbo;C. Smetanka;V. Rivera‐Monroy;E. Castañeda‐Moya;N. Thomas;Tom Van der Stocken
红树林湿地是世界上最具生产力和碳密度的生态系统之一。它们的结构属性在不同空间尺度上差异很大，给区域和全球碳储量估计带来很大的不确定性。在这里，我们提出了一个全球分析的红树林冠层高度梯度和地上碳储量的基础上遥感测量和现场数据。我们的研究强调，降水，温度和气旋频率解释了74%的最大冠层高度的全球趋势，其他地球物理因素影响了在当地和区域尺度上观察到的变化。我们发现最高的红树林在加蓬，赤道非洲，那里的立场达到62.8米。全球红树林碳储存总量（地上和地下生物量以及土壤）估计为5.03 Pg，其中四分之一储存在印度尼西亚。我们的分析暗示了红树林结构对气候变化的敏感性，并为监测国家和区域红树林碳储量的趋势提供了基线。
Mangrove wetlands are among the most productive and carbon-dense ecosystems in the world. Their structural attributes vary considerably across spatial scales, yielding large uncertainties in regional and global estimates of carbon stocks. Here, we present a global analysis of mangrove canopy height gradients and aboveground carbon stocks based on remotely sensed measurements and field data. Our study highlights that precipitation, temperature and cyclone frequency explain 74% of the global trends in maximum canopy height, with other geophysical factors influencing the observed variability at local and regional scales. We find the tallest mangrove forests in Gabon, equatorial Africa, where stands attain 62.8 m. The total global mangrove carbon stock (above- and belowground biomass, and soil) is estimated at 5.03 Pg, with a quarter of this value stored in Indonesia. Our analysis implies sensitivity of mangrove structure to climate change, and offers a baseline to monitor national and regional trends in mangrove carbon stocks.