坡度与坡面侵蚀的关系模型

坡度与坡面侵蚀的关系模型

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Contributor

contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Classification(s)

Earth System SubjectEarth Surface SystemHydrosphere
Geography SubjectPhysical GeographyHydrology

Detailed Description

坡度与坡面侵蚀的关系模型

   

(1)侵蚀与坡度关系式:

          

式中,S为侵蚀量;X为坡长;β为坡度;a,b为常数。

(2)累计入渗量与地表坡度关系式:

          

式中,F为累计入渗量;β为坡度;a,b为常数。

(3)坡面流速与坡度的关系式:

         V=a√2gk-bh0.5+bS0.5

式中,

V为流速;g为重力加速度;k为大于等于84%的床面颗粒的粒径;h为水深;S为坡度;a,b为常数。

(4)坡面水流的能量计算公式:

                    

式中,Ev为坡面水流具有的能量;ρ为水的密度;q为单宽流量。

(5)坡面侵蚀的临界坡度计算式:

                       

式中,β为临界坡度。

How to cite

《资源环境数学模型手册》 (2018). 坡度与坡面侵蚀的关系模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/b8fce08c-c578-471d-80bb-350f06d4508f
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Contributor

contributed at 2018-12-04

Authorship

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

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