半干旱地区土壤盐碱化预报模型

半干旱地区土壤盐碱化预报模型

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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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Application-focused categoriesNatural-perspectiveLand regions

Model Description

Chinese {{currentDetailLanguage}} Chinese

半干旱地区土壤盐碱化预报模型

(1) 流域地下水盐均衡方程:

式中,为地下水中盐储存变化量;为降水补给地下水量及渗入水的矿化度;为地下径流流入量及地下水的矿化度;为河流补给地下水量及河水的矿化度;为地下水蒸发量及地下水的矿化度;为地下径流流出量及地下水的矿化度;为地下水现状开采量及地下水的矿化度。

(2) 包气带土壤盐碱化程度预测:

1)  潜水蒸发盐通量积盐率模型:

2)  降水入渗补给地下水盐通量脱盐率模型:

3)  土壤盐碱化程度预测模型:

式中,为预测年的土壤含盐量;为初始土壤含盐量;为积盐率与脱盐率之差;t为预测时间长度。

(3) 流域内土壤盐碱化预报:

土壤盐碱化预报系数C模型:

式中,为地下水埋深的影响率;为地下水矿化度的影响率;为地下水渗透速度的影响率;为地下水蒸发强度的影响率。

参考文献

李凤全,卞建民,张殿发:半干旱地区土壤盐碱化预报研究――以吉林省西部儿河流域为例。水土保持通报,2000,20(2)

 

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How to Cite

《资源环境数学模型手册》 (2018). 半干旱地区土壤盐碱化预报模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/ef7e1901-4da7-4b70-ba16-dfcdbfce8f63
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Last modifier : 
zhengzhong
Last modify time : 
2020-11-04
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Contributor(s)

Initial contribute: 2018-12-04

Authorship

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

History

Last modifier : 
zhengzhong
Last modify time : 
2020-11-04
Modify times : 
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