土壤有机物的年龄与土壤呼吸的估算模型

土壤有机物的年龄与土壤呼吸的估算模型

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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土壤有机物的年龄与土壤呼吸的估算模型

(1) 放射性碳的数据用其与标准的同位素的偏差的千分率来表示:

式中,

(2) 土壤呼吸作用中的放射性碳:

如果测量出了土壤全部呼吸作用中的放射性碳的含量,则土壤呼吸作用在周转期大于一年和小于一年的各组分之间的分割可从质量平衡中估计出来:

式中,表示根据每个确定的土壤有机物成分(i),用其的签名变量估计的通量;R表示根据根的呼吸作用和前一年碳的分解作用,用其的签名变量估计的通量;T是用的签名变量估计的总的呼吸通量。

(3) 总的呼吸通量的计算公式:

式中,RT的比率可根据各自的同位素签名而得到。

参考文献

Trumbore S:土壤有机物的年龄与土壤呼吸作用――放射性碳对地下碳过程的约束。Ecological Applications2000,10(2)

 

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How to Cite

《资源环境数学模型手册》 (2018). 土壤有机物的年龄与土壤呼吸的估算模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/046af7d6-b6ff-4ef4-b2a0-2005e6a19a17
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Last modifier : 
Xu Kai
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initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
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Last modifier : 
Xu Kai
Last modify time : 
2021-01-04
Modify times : 
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