Construction and analysis of mathematical models for energy flow and nutrient cycling in ecosystems

生态系统能量流和养分循环数学模型的构建与分析

• 批准号: 385794-2010
• 负责人: Wang, Hao
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=528693
• 关键词: Construction; analysis; mathematical; models; energy

Carbon (C), nitrogen (N), and phosphorus (P) are vital constituents in biomass: C supplies energy to cells, N is an essential component of proteins, and P is an essential component of nucleic acids. The scarcity of any of these elements can severely restrict organism and population growth. Hence, in nutrient deficient environments the consideration of nutrient cycling, or stoichiometry, is essential for population models. Ecological stoichiometry has proven to be an important new approach for understanding ecological interactions. With its emphasis on elemental matter, stoichiometric theory covers all biological scales, from molecules to the biosphere, and allows the construction of mechanistic models via rigorous chemical and physical constraints. Mechanistically derived stoichiometric models can explain many fundamental paradoxes in ecology and generate new mathematical challenges.

碳（C），氮（N）和磷（P）是生物质中的重要成分：C向细胞提供能量，N是蛋白质的重要​​组成部分，P是核酸的重要组成部分。这些元素中的任何一个的稀缺性都可以严重限制有机体和人口增长。因此，在营养不足的环境中，考虑营养循环或化学计量的考虑对于人口模型至关重要。事实证明，生态化学计量学是一种了解生态相互作用的重要新方法。由于对元素物质的重视，化学计量理论涵盖了从分子到生物圈的所有生物量表，并允许通过严格的化学和物理约束来构建机械模型。机械衍生的化学计量模型可以解释生态学中的许多基本悖论，并引起新的数学挑战。