Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/45871
DC FieldValueLanguage
dc.contributor.authorXu, X.Z.en_US
dc.contributor.author陳樹群zh_TW
dc.contributor.authorZhang, H.W.en_US
dc.contributor.authorWang, G.Q.en_US
dc.contributor.authorChen, S.C.en_US
dc.contributor.authorDang, W.Q.en_US
dc.date2009zh_TW
dc.date.accessioned2014-06-06T08:15:44Z-
dc.date.available2014-06-06T08:15:44Z-
dc.identifier.issn0167-6369zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/45871-
dc.description.abstractA successful experiment with a physical model requires necessary conditions of similarity. This study presents an experimental method with a semi-scale physical model. The model is used to monitor and verify soil conservation by check dams in a small watershed on the Loess Plateau of China. During experiments, the model-prototype ratio of geomorphic variables was kept constant under each rainfall event. Consequently, experimental data are available for verification of soil erosion processes in the field and for predicting soil loss in a model watershed with check dams. Thus, it can predict the amount of soil loss in a catchment. This study also mentions four criteria: similarities of watershed geometry, grain size and bare land, Froude number (Fr) for rainfall event, and soil erosion in downscaled models. The efficacy of the proposed method was confirmed using these criteria in two different downscaled model experiments. The B-Model, a large scale model, simulates watershed prototype. The two small scale models, D(a) and D(b), have different erosion rates, but are the same size. These two models simulate hydraulic processes in the B-Model. Experiment results show that while soil loss in the small scale models was converted by multiplying the soil loss scale number, it was very close to that of the B-Model. Obviously, with a semi-scale physical model, experiments are available to verify and predict soil loss in a small watershed area with check dam system on the Loess Plateau, China.en_US
dc.language.isoen_USzh_TW
dc.relationEnvironmental Monitoring and Assessmenten_US
dc.relation.ispartofseriesEnvironmental Monitoring and Assessment, Volume 159, Issue 1-4, Page(s) 293-309.en_US
dc.relation.urihttp://dx.doi.org/10.1007/s10661-008-0630-xen_US
dc.subjectLoess Plateauen_US
dc.subjectCheck damen_US
dc.subjectSemi-scale modelen_US
dc.subjectSimilarity conditionen_US
dc.subjectSoilen_US
dc.subjectlossen_US
dc.subjecterosionen_US
dc.titleAn experimental method to verify soil conservation by check dams on the Loess Plateau, Chinaen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1007/s10661-008-0630-xzh_TW
item.languageiso639-1en_US-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
Appears in Collections:水土保持學系
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