نتایج جستجو برای: sub basin

تعداد نتایج: 262740  

2002
G. DROGUE T. LEVIANDIER B. HINGRAY J. HUMBERT

The Hydrological Recursive Model (HRM), a conceptual rainfall-runoff model, was applied for local and regional simulation of hourly discharges in the transnational Alzette River basin (Luxembourg-France-Belgium). The model was calibrated for a range of various sub-basins with a view to analysing its ability to reproduce the variability of basin responses during flood generation. The regionaliza...

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ژورنال: پژوهشنامه مدیریت حوزه آبخیز 2019
Nazaripouya, Hadi,

   Identifying and determining the flood potential and prioritizing of the flood discharge in the sub-basins is very important in terms of watershed management, flood control and watershed management projects. In many watersheds, it is difficult to investigate and determine the impact of each of the factors and even upstream sub-basins on creating an outlet flood, especially in the sub-basins w...

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ژورنال: تحلیل فضایی مخاطرات محیطی 2018
صفاری, امیر, نوری, عباسعلی, کرمی, جلال,

Investigation about the influence of land-cover and land use changes on soil erodibility potential, case study: Gharesou, Gorganrood Land use and land cover (LUC) change associated with climatic and geomorphologic conditions of the area have an accelerating impact on the land degradation. Natural as well as human-induced land use land cover change (LUCC) has significant impacts on regional soi...

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2009
Aixia LIU Junfeng CHEN Jing WANG Zhengjun LIU

The Donghe basin is one of the typical regions with serious water and soil erosion in Kaixian county of China. In this study the spatial distribution variation of soil erosion in Donghe basin is analyzed based on a comprehensive method that integrates SWAT model with a Geographic Information System and remote sensing technologies and the effects of land use changes on soil erosion is also analy...

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Journal: :caspian journal of environmental sciences 2006
murugan, m.

the projected rainfall change under various scenarios is likely to have both positive and negative implications on agriculture and water supply because in rainfall pattern across the country. rise in rainfall is seen over all states except punjab, rajasthan and tamil nadu, which show slight decrease in precipitation in the future scenarios. marked increase in covering the western ghats and nort...

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2002
Valentina Krysanova Uwe Haberlandt

A two-step procedure for analysing nitrogen leaching from arable land in large river basins is suggested: (1) application of a process-based dynamic model for a set of representative conditions in a large river basin to simulate water and nitrogen fluxes and (2) development of a fuzzy-rule based metamodel using the simulated nitrogen fluxes in Step 1 as a training set. After that the metamodel ...

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Journal: :IOP conference series 2021

A watershed is a combination of several rivers and tributaries with certain boundaries that function to drain rainwater into lake or sea. One the hydrological data contained in discharge data. If there incomplete data, it must be extended based on historical ARIMA decomposition are methods can predict time series The purposes this research determine patterns Brantas Sub-basin, know forecasting ...

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Journal: :ASEG Extended Abstracts 2012

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Journal: :ecopersia 2011
naveed alam theo n. olsthoorn

farmers in the indus basin, pakistan have generally switched to groundwater for additional water supplies due to the irregular supply of irrigation water; currently over 50% of the agricultural land in the basin is at least partially irrigated by tube-wells. these wells pump fresh groundwater, which essentially is the result of massive leakage from irrigation canals into the originally saltwate...

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ژورنال: پژوهش های فرسایش محیطی 2020
Jafari, Gholam Hassan, Nasery, Frozan,

Extended abstract 1- Introduction Various factors influence the karstification process in the dissolution of carbonate rocks. Karst is common influence result of internal morphodynamics (geological structure and lithology) and external morphodynamics (climate, altitude, vegetation, and time). They affect the karstification of the demise of carbonate rocks. Karst is the result of numerous meth...

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