土壤碎屑过程控制15N示踪物向森林植被移动的估算公式

土壤碎屑过程控制15N示踪物向森林植被移动的估算公式

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
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yue@lreis.ac.cn
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土壤碎屑过程控制示踪物向森林植被移动的估算公式

(1) 森林枯枝落叶池的质量损失模型:

式中,是干燥的非木本枯枝落叶;是腐烂常数,是一个细跟和落叶的全部枯枝落叶的 (木质纤维素指数)随时间变化的函数;γ是腐烂速率的修正值;是一个表示温度和湿度对腐烂速率影响的因子,AET是实际的土壤水分蒸发蒸腾损失总量;是每年实际的土壤水分蒸发蒸腾损失总量;是腐烂常数来源地每年实际的土壤水分蒸发蒸腾损失总量;是表示不同土层对腐烂速率的影响的因子。

(2) 模型中每一土层的潮湿池最先遭受质量损失:

式中,H(l,t)是土层(l)中的潮湿物质;是潮湿物质的腐烂常数;是一个表示不同土层对腐烂速率影响的因子。

(3) 总氮的同化作用被模拟为在各种培养基上不同效率的微生物生物量生产:

式中,是单位数量微生物中的氮浓度;表示由于从每个枯枝落叶池(在矿质土层中λ=0)中滤去可溶性有机物(DOM)引起的质量损失部分;e是微生物效率,被定义为微生物生产并释放到培养基中的生物量的比率,它带有一个下标,指出培养基类型。

(4) 每一个月中总的氮矿化度

式中,是每月氮同化作用的净流量。

参考文献

Currie W S, Nadelhorrer K J, Aber J D:土壤碎屑过程控制示踪物向森林植被的移动。Ecological Application,1999,9(1)

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How to Cite

《资源环境数学模型手册》 (2018). 土壤碎屑过程控制15N示踪物向森林植被移动的估算公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/e4e711b9-98fd-4f54-9eb6-65b3c8b5d0e8
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zhengzhong
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initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

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Last modifier : 
zhengzhong
Last modify time : 
2020-10-30
Modify times : 
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