近似贝叶斯法在光合模型参数估计中的应用
Using approximate Bayesian computation to infer photosynthesis model parameters
查看参考文献34篇
文摘
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长期以来,光合作用机理模型中参数的确定都是一个难点。该文提出一种参数反演的方法,称为近似贝叶斯法(APMC),用来确定Farquhar光合模型的生理参数。通过将整个冠层抽象为一片大叶的思维抽象,笔者进一步将APMC应用到冠层尺度的生理参数求解,使直接求算冠层尺度生理参数成为可能。该文详细介绍了使用APMC估算光合模型参数的具体算法,并用实测数据进行了验证。结果表明, APMC可以很好地应用于冠层光合模型参数的估计,估计所得的参数落在参数生理上下限值之间,应用1 948个实测数据进行检验,得到决定系数0.75。模拟值和实测值的线性回归曲线斜率为1.04,与理论上的1.0非常接近。这个方法对光合模型参数的获取或许有积极的意义。 |
其他语种文摘
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We developed a method, namely Adaptive Population Monte Carlo Approximate Bayesian Computation (APMC), to estimate the parameters of Farquhar photosynthesis model. Treating the canopy as a big leaf, we applied this method to derive the parameters at canopy scale. Validations against observational data showed that parameters estimated based on the APMC optimization are un-biased for predicting the photosynthesis rate. We conclude that APMC has greater advantages in estimating the model parameters than those of the conventional nonlinear regression models. |
来源
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植物生态学报
,2017,41(3):378-385 【核心库】
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DOI
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10.17521/cjpe.2016.0067
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关键词
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蒙特卡洛
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大叶模型
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Farquhar光合模型
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净生态系统交换
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地址
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1.
日本国立环境研究所, 日本, 筑波, 3058506
2.
海南大学环境科学系, 海口, 570228
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1005-264X |
学科
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植物学 |
基金
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国家自然科学基金
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文献收藏号
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CSCD:5963268
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