Recovery of Terrestrial Ecosystems from Major Disturbance: Constraints Due to Carbon/Nutrient Interactions

本研究将结合联合收割机生态系统过程模型（GEM） 和生态系统数据集从各种生态系统类型的世界- 碳/养分相互作用对环境的影响 生态系统从重大干扰中恢复。 目标是1） 确定影响生态系统的元素循环特征 对干扰的反应和恢复，2）合成 扰动和恢复数据，3）碳变化分析 储存、养分循环、水平衡和其他生态系统 从干扰中恢复的过程，以及4）评估 全球变化对生态系统恢复的额外影响。 %%% 元素循环相互作用对生态系统的影响 从干扰中恢复仍然是生态系统的中心问题 生态学家 气候变化对元素控制的影响 生态系统的恢复更是知之甚少。 改进知识 元素通量如何控制生态系统的恢复， 通量将对全球变化做出重大贡献 生态和环境政策。 该项目将解决 这些关键问题通过建模方法， 评估模型参数对变化条件的敏感性 在生态系统恢复过程中。

This research will combine an ecosystem process model (GEM) and ecosystem data sets from a variety of ecosystem types world- wide to address effects of carbon/nutrient interactions on ecosystem recovery from major disturbances. Objectives are 1) to identify characteristics of element cycles that affect ecosystem respond to and recovery from disturbances, 2) synthesis of disturbance and recovery data, 3) analysis of changes in carbon storage, nutrient cycling, water balance and other ecosystem processes during recovery from disturbance, and 4) assessment of additional effects of global change on recovering ecosystems. %%% The effect of interactions among element cycling on ecosystem recovery from disturbance remains a central question for ecosystem ecologists. The effects of climate change on elemental control of ecosystem recovery are more poorly understood. Improved knowledge of how elemental fluxes control ecosystem recovery and how these fluxes will respond to global change will be a major contribution to ecology and environmental policy. This project will address these critical questions through a modeling approach that will assess sensitivity of model parameters to changing conditions during ecosystem recovery.