hliu092 发表于 2021-2-4 15:04:03

Modeling of Carbon Sink Forest Production/碳汇林生产力模拟

This is the article 6 in the theme 'Environmental Physiology/环境生理学' of Journal of Environment and Health Science.

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hliu092 发表于 7 天前

Article 6. Modeling of annual net primary production of a forest in the Taramakau Valley, Westland, New Zealand
Author: Liu Huan (1983-), Master of Science (First Class Honours), The University of AucklandAdvisor: George Perry, School of Environment, The University of Auckland
AbstractModel provides a useful tool for the estimation of annual net primary production (NPP) in the terrestrial ecosystem. This project used Vensim software to design a numerical model of annual net primary production in a forest in the Taramakau Valley, Westland, New Zealand, based on the empirically derived correlations between forest growth and available resources. Atmospheric transmissivity, light use efficiency (LUE), light saturation point and water limitation factor were parameterized in this model. Light use efficiency (LUE) is considered as a function of atmospheric transmissivity in this model, which well indicates the daily variation in LUE. Sensitivity analysis was conducted to validate the parameters in this model. The results of this model have been validated by comparing with field studies or other models. The estimated NPP is 938.335g C/m2 in 2007, which is a reasonable value. Finally, the limitations and recommendations for future model development have been discussed, with application on the estimation of production in carbon sink forest. Key words: Numerical Model, Net Primary Production, Light Use Efficiency, Atmospheric Transmissivity, Light Saturation Point, Water Limitation Factor, Carbon Sink Forest.

论文题目:新西兰西部森林年净初级生产力(NPP)的数值模拟(英文) 摘要:模型预测法为估算陆地生态系统年净初级生产力(NPP)提供了一个有效的工具。此课题采用 Vensim 软件对新西兰西部地区taramakau 山谷森林的年净初级生产力进行了数值模拟。模型输入与输出关系是森林生长量和可利用资源之间的经验数值关系。该模型的四个主要参数包括大气透过率、光能利用效率、光饱和点和可利用水资源。其中光能利用效率(LUE)在数值模型中被定义为大气透过率的函数,大气透过率可以有效反映光能利用效率的日变化。此课题应用了灵敏度分析方法对 9 个模型参数的有效性进行了验证。通过与现场测定值或与其他模型预测值的比较,此课题模型的预测结果已得到充分验证。模型预测的陆地生态系统年净初级生产力(NPP)在 2007 年为 938.335g C /平方米,在合理的估值区间内。模型发展的局限性和趋势也在最后进行了探讨,并且应用于碳汇林的生产力估测。 关键词:数值模拟、年净初级生产力、光能利用效率、大气透过率、光饱和点、干旱因子、灵敏度分析、碳汇林

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