【摘 要】
：
This study verifies the applicability of EPIC model for an erosion plot (61.2 m2) and anupland terraced watershed (72 ha) using a total of 94 rainfall events ov
【机 构】
：
Department of Irrigation,Water Engineering and Management
论文部分内容阅读
This study verifies the applicability of EPIC model for an erosion plot (61.2 m2) and anupland terraced watershed (72 ha) using a total of 94 rainfall events over a study period of two years.In order to analyze the effect of storm size on runoff and soil loss processes,rainfall events are divided into three groups:small (＜25mm),moderate (25-50mm) and large (＞50mm).Results indicate that the model could predict reasonably well the runoff and soil loss from the erosion plot and the watershed for the moderate and large rainfall events.However,the runoff and soil loss prediction for the small rainfall events is found to be poor.On annual basis,both surface runoffand soil loss predictions match well the observations.In light of the importance of the moderate and large rainfall events in producing most of the annual runoff and soil loss in the study area,the EPIC model is applied to assess the impacts of erosion on agricultural productivity and to evaluate management practices to protect watersheds in the middle mountainous area of Nepal.
其他文献
There are two models of ultrahigh pressure metamorphism (UHPM) zone in Dabie: the model of under thrusting-returning which even arrives at the mantle and the su
This paper presents some questions to the formula of pressure=depth×specific gravity from the viewpoint that the hydrostatic pressure is equal to the gravity o
Fluid inclusions from the Dajing and Caijiaying deposits have nearly the same homogenization temperature. Correlation between temperature and salinity shows tha
通过在京津城际轨道交通工程中的实践,对CRTSⅡ板式无砟轨道设计和施工中的缺点和问题发表了看法,并就梁面六面坡与平整度、桥面防水层、底座板钢筋绝缘、底座板齿槽、底座板
The wet canopy evaporation rate (Er) was calculated by Penman-Monteith combination model based on three assumptions and with meteorological variables 2 m above
Located in the eastern portion of the Xing'an- Mongolian Orogenic Belt (XMOB), the Xinkailing-Kele complex has previously been considered to be Precambrian meta
The helium and argon isotope compositions of fluid inclusions hosted in pyrite have been measured from Kuoerzhenkuola and Buerkesidai gold deposits in Sawuer go
The Yangshan gold deposit is a super-large fine-grained disseminated gold deposit located in southern Gansu Province. Its metallogenic age has been determined b
在全球石油高度紧缺的形势下,寻找剩余石油显得非常重要.但是,容易寻找的简单构造油气藏大都已发现,剩下未发现的油气藏大都是复杂构造、地层和岩性圈闭油气藏.用地震技术到
地质雷达探测技术已在基础建设工程中得到广泛应用.在研究地质雷达高精度特性时,不能脱离弱异常的精细处理解释.本文探讨了:(1)地质雷达噪声源;(2)雷达资料的精细处理和解释,