侵蚀产沙系统模型

侵蚀产沙系统模型

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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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Chinese {{currentDetailLanguage}} Chinese

侵蚀产沙系统模型

 

(1)地表径流演算——平面径流的运动波方程:

                   

式中,h为当地水深;t为时间;q为单宽流量;x为平面向下的距离;i为降雨强度;f为入渗率;k为深度-流量系数。

(2)流域侵蚀产沙模型——坡地动态侵蚀模型的连续方程:

                 

式中,Dr为细沟侵蚀率;D1为沟间泥沙输移率;qs为单宽输沙率;ps为泥沙颗粒密度;c为水流泥沙浓度;y为径流深。

(3)泥沙的演进——泥沙平衡方程:

                 

式中,IsQs为泥沙的输入、输出速率;Ws为随水流运动的泥沙总量;q为冲淤速度,I,Q为河段的入、出流流量,CI,C为河段的入、出流含沙量,CIC为入、出流断面的挟沙能力,α为常系数。

柳丽英,范荣生:侵蚀产沙系统模型概述。水土保持通报,1997,17(2)

 

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How to Cite

《资源环境数学模型手册》 (2018). 侵蚀产沙系统模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/04cf073a-f56d-49cc-9cd9-cde6b057be39
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Last modifier : 
zhangshuo
Last modify time : 
2020-11-11
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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 : 
zhangshuo
Last modify time : 
2020-11-11
Modify times : 
View History

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