小流域降雨对土壤侵蚀模型

小流域降雨对土壤侵蚀模型

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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

小流域降雨对土壤侵蚀模型

(1)降雨侵蚀力:

雨滴对土壤表面的打击动能E0模型:

           

式中,rw为水密度;V0为雨滴下落终速;g为重力加速度。

(2)面蚀、沟蚀、崩岗侵蚀:

1)弗劳德数Fr模型:

                

式中,v为地表径流速度;R为水半径;g为重力加速度。

2)沟岸安全临界高度Hc模型:

                   HC=NSc/rd

式中,Ns为依崩壁倾角和土壤内摩擦角而定的数;c为土壤内聚力;rd为土壤容重。

钟朝章,卜伟文,王胜华等:乌陂河小流域降雨对土壤侵蚀的影响。水土保持通报,1993,13(2)

 

How to cite

《资源环境数学模型手册》 (2018). 小流域降雨对土壤侵蚀模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/92ec0e7c-935c-459a-b42d-3a79f2b35928
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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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