水稻-牲畜综合养殖系统甲烷排放与减排的数学建模与分析。

Maitri Verma, Alok Kumar Verma
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引用次数: 0

摘要

控制大气中甲烷(CH4)的升高水平对于解决气候变化问题至关重要。稻田和畜牧业都是甲烷升高的主要原因。水稻-牲畜综合耕作系统是一种农业做法,旨在优化农业废弃物的利用,同时提高水稻和牲畜的生产力。要实现粮食安全和减缓气候变化的双重目标,就需要制定和实施旨在管理水稻-牲畜养殖系统甲烷排放的战略。本文介绍了稻畜一体化系统中甲烷排放与减排的非线性数学模型。通过定性分析,深入探讨了模型的动态行为,确定了大气甲烷浓度降低和稳定的条件。模型参数是利用关于大气甲烷浓度、水稻产量和牲畜数量的二次数据估算的。提出了一种灵敏度分析方法来评估关键参数变化对系统行为的影响。通过数值模拟验证了理论结果的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mathematical modeling and analysis of emission and mitigation of methane from the integrated rice-livestock farming system.

Controlling the elevated levels of methane (CH4) in the atmosphere is crucial to tackling the problem of climate change. Both rice paddies and livestock farming are substantial contributors to this elevated methane. The integrated rice-livestock farming system is an agricultural practice designed to optimize the use of agricultural waste, while concurrently boosting rice and livestock productivity. Achieving the dual objectives of food security and mitigating climate change demands formulation and implementation of strategies that are aimed at managing the methane emissions from the rice-livestock farming system. This study introduces a nonlinear mathematical model of the emission and mitigation of methane in the integrated rice-livestock farming system. Through qualitative analysis, the model's dynamic behavior is thoroughly explored, identifying conditions for reduction and stabilization of atmospheric methane concentrations. Model parameters are estimated using secondary data on atmospheric methane concentration, rice yield, and livestock population. A sensitivity analysis is presented to evaluate the influence of variations in crucial parameters on the system's behavior. Numerical simulations are conducted to confirm the validity of the theoretical results.

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