Tropical forests and global change: biogeochemical responses and opportunities for cross-site comparisons, an organized INSPIRE session at the 108th Annual Meeting, Ecological Society of America, Portland, Oregon, USA, August 2023.
Tropical forests and global change: biogeochemical responses and opportunities for cross-site comparisons, an organized INSPIRE session at the 108th Annual Meeting, Ecological Society of America, Portland, Oregon, USA, August 2023.
复制标题
DOI：
10.1111/nph.19511
复制
发表时间：
2024-01
期刊：
影响因子：
--
通讯作者：
D. Cusack;Sasha C. Reed;K. Andersen;D. Cinoğlu;M. Craig;Lee H. Dietterich;J. Hogan;Jennifer A Holm;A. Nottingham;Rebecca Ostertag;F. Soper;Tana Wood;M. Wong
中科院分区：
文献类型：
--
作者：
D. Cusack;Sasha C. Reed;K. Andersen;D. Cinoğlu;M. Craig;Lee H. Dietterich;J. Hogan;Jennifer A Holm;A. Nottingham;Rebecca Ostertag;F. Soper;Tana Wood;M. Wong
在这项研究中，热带森林在全球碳（C）循环中发挥着关键作用。这些生态系统保持着地球上最高的净初级生产率（NPP），包含c。30%的陆地碳储量，并拥有全球最大的细根生物量储存，以及与其他生物群落相比更高的细根生产和周转率。热带森林对预计的变暖、降雨量变化和CO2浓度升高的反应可能不同于其他生态系统，因为它们具有独特的特征（插文1），因此有针对性的研究和模型开发对于了解热带森林气候反馈非常重要。现在有大量的长期全球变化实地实验和热带森林建模工作，但到目前为止，很少有综合，跨站点比较，或多站点标准化实验，热带森林，以帮助我们了解这些生物群落是如何变化的。美国生态学会第108届年会上组织的INSPIRE会议正是为了解决这个问题。发言者介绍了大规模热带森林实地实验和建模工作，重点是在气候变暖、干旱、大气二氧化碳浓度升高和营养状况变化的情况下生态系统地球化学的变化。在本会议报告中，我们概述了所提出的大规模全球变化实验，并强调了热带森林研究的主要目标和机会，包括跨地点比较和与生态系统规模模型的整合（图1）。
In this study, tropical forests play a critical role in the global carbon (C) cycle. These ecosystems maintain the highest rates of net primary production (NPP) on Earth, contain c. 30% of terrestrial C stocks, and have some of the largest stores of fine-root biomass globally, as well as higher fine-root production and turnover rates compared with other biomes. Tropical forest responses to projected warming, altered rainfall regimes, and elevated CO2 concentrations are likely to be different from other ecosystems because of their unique characteristics (Box 1), making targeted research and model development important for understanding tropical forest–climate feedbacks. There is now a critical mass of long-term global change field experiments and modeling efforts in tropical forests, yet thus far there has been little synthesis, cross-site comparison, or multi-site standardized experimentation among tropical forests to help us understand how these biomes are changing. An organized INSPIRE session at the 108th Annual Meeting of the Ecological Society of America set out to tackle just this. Speakers covered large-scale tropical forest field experiments and modeling efforts, with an emphasis on changes in ecosystem biogeochemistry under warming, drying, elevated atmospheric CO2, and changing nutrient status. In this Meeting report, we provide an overview of the large-scale global change experiments presented and highlight the main objectives and opportunities for tropical forest research that emerged, including cross-site comparisons and integration with ecosystem-scale models (Fig. 1).