نتایج جستجو برای: hydrological regulation
تعداد نتایج: 567542 فیلتر نتایج به سال:
A strong environmental change has been recognized in China with the impacts of climate change and intensive human activities on land use. In this paper, first environmental changes in China, such as those caused by human activities, land use, climate change, and social and economic development, are presented. Secondly, the hydrological prediction models and systems and their application in Chin...
Application of conceptual hydrological models is an important issue in watersheds for researchers, especially in arid and semi-arid regions. The hydrological behaviors are complicated in such watersheds and their calibration is more difficult. In this article, the conceptual and semi-distributed SWAT model is used for a semi-arid Nishabour watershed with 9350 km2 area. Streamflow simulation is ...
This review focuses on forests in the humid tropics and on two of their potentially most important benefits. These include hydrological benefits, such as erosion control and regulation of stream flows, and non-timber forest products, such as rubber, rattan, fruits, and nuts. The first benefit is motivational. Host countries capture only a small proportion of the global benefits, which stem fr...
In this study, a framework to project the potential future climate change impacts on extreme hydrological drought events in the Weihe River basin in North China is presented. This framework includes a largescale hydrological model driven by climate outputs from a regional climate model for historical streamflow simulations and future streamflow projections, and models for univariate drought ass...
To better understand the mechanisms that hydrological conditions control chemical weathering and carbon dynamics in the large rivers, we investigated hydrochemistry and carbon isotopic compositions of dissolved inorganic carbon (DIC) based on high-frequency sampling in the Wujiang River draining the carbonate area in southwestern China. Concentrations of major dissolved solute do not strictly f...
The potential of an artificial neural network to perform simple non-linear hydrological transformations is examined. Four neural network models were developed to emulate different facets of a recognised non-linear hydrological transformation equation that possessed a small number of variables and contained no temporal component. The 5 modeling process was based on a set of uniform random distri...
19 The relationship between meroplankton distribution and spatio-temporal variability of coastal 20 mesoscale hydrological structure was investigated in the northern Bay of Biscay, NorthEast 21 Atlantic. For the three coastal polychaetes studied, i.e., Pectinaria koreni, Owenia fusiformis, 22 Sabellaria alveolata, the highest larval abundances were sampled in low salinity, low density and 23 hi...
Assessing the future effects of climate change on water availability requires an understanding of how precipitation and evapotranspiration rates will respond to changes in atmospheric forcing. Use of simplified hydrological models is required because of lack of meteorological forcings with the high space and time resolutions required to model hydrological processes in mountains river basins, an...
The Hydrological Dispersion Module (HDM) of the RODOS (real-time on-line decision support) system for nuclear emergency management in Europe has been is developed at IMMSP, Kiev, Ukraine; NRG, The Netherlands; FZK, Karlsruhe, Germany; SPA “TYPHOON”, Obninsk, Russia; IPEP, Minsk, Belorussia, and NCSR “Demokritos”, Athens, Greece. Initial testing and customisation work was performed by NPPRI, Slo...
Environmental monitoring in ecological and hydrological watershed-scale research is an important and promising area of application for wireless sensor networks. This paper presents a system design of IPv6 wireless sensor network (IPv6WSN) in Heihe river watershed in Gansu province of China to assist ecological and hydrological scientists collecting field scientific data in an extremely harsh en...
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