侵蚀模数等值线校核计算公式

侵蚀模数等值线校核计算公式

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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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Geography SubjectPhysical GeographyPedology
Earth System SubjectEarth Surface SystemLithosphere

Detailed Description

侵蚀模数等值线校核计算公式

 

(1)侵蚀模数:

式中:M为侵蚀模数亦称输沙量率(tkm)R为输沙总量(t)F为集水面积(km²)P为年平均输沙率(kgy)

(2)侵蚀深度:

式中,M为侵蚀模数(tkm)r为当地的泥沙平均单位体积重量(即干容重)()

(3)侵蚀系数

式中,α为侵蚀系数;ρ为年平均含沙量(kgm)I为河流的比降。

(4)等值线的平衡校核计算公式:

式中,为平衡量算得的区间模数值;为等值线间的部分面积;F为部分面积之和()为等值线代表的模数值。

参考文献

汪占冕:长江流域侵蚀模数等值线的编制和分析。地理学报,195824(4)

 

How to cite

《资源环境数学模型手册》 (2018). 侵蚀模数等值线校核计算公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/afabf18a-1943-4193-8ce1-067dc1c08a4c
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Contributor

contributed at 2018-12-04

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

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