نتایج جستجو برای: river basin

تعداد نتایج: 123719  

2011
S. Quiroga

Drought events in the Mediterranean are likely to increase in frequency, duration and intensity due to climate change, thereby affecting crop production. Information about drought is valuable for river basin authorities and the farmers affected by their decisions. The economic value of this information and the resulting decisions are of interest to these two stakeholder groups and to the inform...

Journal: :CoRR 2015
Hèou Maléki Badjana Franziska Zander Sven Kralisch Jörg Helmschrot Wolfgang-Albert Flügel

A prerequisite for integrated land and water resources management (ILWRM) is a holistic river basin assessment. The latter requires information and data from different scientific disciplines but also appropriate data management systems to store and manage historical and real time data, set up protocols that facilitate data and information access and sharing among different stakeholders, and tri...

Journal: :ISPRS Int. J. Geo-Information 2017
Rui Sun Pingping Yao Wen Wang Bing Yue Gang Liu

As “kidneys of the earth”, wetlands play an important role in ameliorating weather conditions, flood storage, and the control and reduction of environmental pollution. With the development of local economies, the wetlands in both the Amazon and Yangtze River Basins have been affected and threatened by human activities, such as urban expansion, reclamation of land from lakes, land degradation, a...

Journal: :Dong wu xue yan jiu = Zoological research 2014
Marco Endruweit

In this study, six fish species of five families are reported for the first time from Yunnan Province, China. The nemacheilid Schistura amplizona Kottelat, 2000 is reported from the Luosuojiang River and Nanlahe River subbasins, Mekong basin; the prochilodontid Prochilodus lineatus (Valenciennes, 1837), the balitorid Vanmanenia serrilineata Kottelat, 2000, and the tetraodontid Monotrete turgidu...

2016
María-del-Mar Gallardo Pedro Merino Laura Panizo Alberto Salmerón

This paper presents de use of the Spin model checker as the core engine to build Decision Support Systems (DSSs) to control complex river basins during flood situations. Current DSSs in this domain are mostly based on simulators to predict the rainfall and the water flow along the river basin. In this paper, we propose a scheme that integrates simulators in the water domain with additional logi...

2013
Priyanka Das

This paper aims to examine the nature of width, depth and configuration distribution along Kuya River and their temporal directionality of changes. It also pays attention to prepare some simplified indices regarding basin asymmetry, channel asymmetry and river bank stability and to explain the nature of basin and channel asymmetry and river bank stability using those constructed indices. Irregu...

Journal: :Journal of environmental quality 2010
D Longing B E Haggard

Acquisition and compilation of water-quality data for an 11-yr time period (1996-2006) from 589 stream and river stations were conducted to support nutrient criteria development for the multistate Red River Basin shared by Arkansas, Louisiana, New Mexico, Oklahoma, and Texas. Ten water-quality parameters were collected from six data sources (USGS, Arkansas Department of Environmental Quality, L...

2017
Kellie J Carim J Caleb Dysthe Michael K Young Kevin S McKelvey Michael K Schwartz

The Pacific lamprey (Entosphenus tridentatus) is an anadromous fish once abundant throughout coastal basins of western North America that has suffered dramatic declines in the last century due primarily to human activities. Here, we describe the development of an environmental DNA (eDNA) assay to detect Pacific lamprey in the Columbia River basin. The eDNA assay successfully amplified tissue de...

2006
Jim E. O'Connor Gordon E. Grant Tana L. Haluska

Within the Deschutes River basin of central Oregon, the geology, hydrology, and physiography influence geomoqhic and ecologic processes at a variety of temporal and spatial scales. Hydrologic and physiographic characteristics of the basin are related to underlying geologic materials. In the southwestern part of the basin, Quaternary volcanism and tectonism has created basin fills and covered an...

Journal: :international journal of aquatic biology 0
erick cristofore guimarães laboratório de sistemática e ecologia de organismos aquáticos, centro de ciências agrárias e ambientais, universidade federal do maranhão. campus universitário, ccaa, br-222, km 04, s/n, boa vista, cep 65500-000, chapadinha, ma, brasil. felipe polivanov ottoni laboratório de sistemática e ecologia de organismos aquáticos, centro de ciências agrárias e ambientais, universidade federal do maranhão. campus universitário, ccaa, br-222, km 04, s/n, boa vista, cep 65500-000, chapadinha, ma, brasil. axel makay katz laboratório de sistemática e evolução de peixes teleósteos, departamento de zoologia, instituto de biologia, universidade federal do rio de janeiro. cidade universitária, cep 21994-970. rio de janeiro, rj, brasil. pâmella silva de brito laboratório de sistemática e ecologia de organismos aquáticos, centro de ciências agrárias e ambientais, universidade federal do maranhão. campus universitário, ccaa, br-222, km 04, s/n, boa vista, cep 65500-000, chapadinha, ma, brasil.

the present study reports range extansion of moenkhausia oligolepis to the pindaré river drainage, of the mearim river basin, and itapecuru river basin, maranhão state, northeastern brazil. this species was previously known only from venezuela, guianas, and the amazon river basins. in addition, we present some meristic and morphometric data of the specimens herein examined and discuss on its di...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید