Dissertation Research: The Role of Microorganisms in Soil Carbon Storage

9623094费尔斯通微生物的分类和功能多样性可能决定不同碳稳定途径的速率和优势。在这项研究中，PI提议实现三个目标，每个目标都解决了一个核心问题：微生物群落决定土壤中碳的命运的能力是否不同？为了实现这些目标，PI将评估微生物的功能和分类多样性，研究群落对碳分配的控制，并将量化微生物细胞壁对稳定碳的贡献。PI希望涉及腐殖质化学，土壤微生物学和生态系统生态学方面，以促进我们对微生物和微生物多样性在生态系统功能中发挥作用的理解。最终，这项工作可能对区域碳循环模型以及预测土壤碳库对环境和土地利用变化的响应具有重要意义。?？

9623094 Firestone Microbial taxonomic and functional diversity may have the potential to determine the rate and dominance of different carbon stabilization pathways. In this research the PI's propose to achieve three objectives, each addressing the central question: do microbial communities vary in their ability to determine the fate of carbon in soil? To accomplish these goals, the PI's will assess microbial functional and taxonomic diversity, investigate community control over carbon partitioning, and will quantify the contribution of microbial cell walls to stable carbon. The PI's hope to involve aspects of humus chemistry, soil microbiology and ecosystem ecology in advancing our understanding of the role that microorganisms and microbial diversity play in ecosystem functioning. Ultimately, this work may have implications for regional carbon cycle models, and for predicting response of soil carbon pools to environmental and land-use change. ??