土壤侵蚀定量模型

土壤侵蚀定量模型

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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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Method-focused categoriesData-perspectiveGeoinformation analysis
Method-focused categoriesProcess-perspectivePhysical process calculation

Model Description

Chinese {{currentDetailLanguage}} Chinese

土壤侵蚀定量模型

(1)    径流公式:

  

式中:Q为流域年平均径流模数(mm);R为年降雨量(mm);为年降雨天数(d);MS1/3巴田间持水量BD为表土容重为年实际蒸散量与潜在蒸散量之比。

(2)    小流域土壤流失失量地学模型:

      

式中:Y为小流域平均土壤侵蚀模数Q为小流域平均径流模数P为植被度及治理度X为流域形状参数;d为坡耕地百分数s为平均坡度l为平均坡长(m);f0.1~2.0mm的细沙含量

(3)    USLE修正方程:

A=1.584+0.974RKLSCP   (r=0.88)

参考文献

    刘黎明:黄土高原丘陵沟壑区土壤侵蚀遥感定量与信息系统研究――以陕西米脂县为例,自然资源学报,199274

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How to Cite

《资源环境数学模型手册》 (2018). 土壤侵蚀定量模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/4b094685-bb02-4070-a8cb-d09621ae5560
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Last modifier : 
Zhiyi Zhu
Last modify time : 
2020-12-24
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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 : 
Zhiyi Zhu
Last modify time : 
2020-12-24
Modify times : 
View History

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