期刊名称：Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN：1058-3912
电子版ISSN：1996-7918
出版年度：2003
卷号：11
出版社：IAEH
摘要：Modeling overland flow and erosion behavior is a very important scientific task today to prevent environmental impacts from human activities, as well as physical disasters such as floods and desertification. This project has identified the impacts from selective logging in Malaysia by comparing hydrological parameters, both at a local and a catchment scale. Measurements of rainfall, overland flow, and suspended sediment flux were recorded for a year with a resolution of five minutes. A Data Based Mechanistic (DBM) modeling approach was applied to facilitate physical interpretation of the results, which provided credible conclusions. The significant alteration of the area’s hydrologic regime, due to human interventions, is apparent. The extreme nonlinearity of the rainfall-suspended sediment flux relationship reduced the efficiency of the models, and did not allow reliable forecasting. Nevertheless, useful conclusions have been drawn from the comparison of hydrologic parameters at different scales. The DBM models described the physical processes well and provided satisfactory results.
