نتایج جستجو برای: harat river basin

تعداد نتایج: 123736  

2016
Satyavati Shukla V. Rathod V. Khire

Rapid urbanization changes the land use/land cover pattern of a developing region. Due to these land surface changes, stream flow of the rivers also changes. It is important to investigate the factors affecting hydrological characteristics of the river basin for better river basin management planning. This study is aimed to understand the effect of Land Use/Land Cover (LU/LC) changes on stream ...

Journal: :The Science of the total environment 2014
Tyler B Smith Philip N Owens

The impact of agriculture, forestry and metal mining on the quality of fine-grained sediment (<63 μm) was investigated in the Quesnel River Basin (QRB) (~11,500 km(2)) in British Columbia, Canada. Samples of fine-grained sediment were collected monthly during the snow-free season in 2008 using time-integrated samplers at replicate sites representative of agriculture, forestry and mining activit...

2014
LAWRENCE RIVER

The Great Lakes-St. Lawrence River basin community is challenged in achieving a basin that thrives ecologically, economically and socially. Although natural science, social science, policy, and law literatures offer insight into understanding and developing policies for the Great Lakes-St. Lawrence River basin, these literatures are constructed in disciplinary silos. Scenario analysis supports ...

Journal: :جغرافیا و مخاطرات محیطی 0
عبدالرضا رحمانی فضلی سعید صالحیان بادی

1. introduction the meaning of sustainability is an effort to reach the best results in human and environmental programs which are considered to be for present and future. zayandeh-rud is the most important and vital river in esfahan area which is used in agriculture, industry, providing drinking water and all other economic sectors. this river is originated from the zagros mountains – zardkooh...

2012
JEFFERSON MORTATTI GRAZIELA MENEGHEL

Copyright © 2012 by The Geochemical Society of Japan. Variations in the aquatic environmental conditions can produce a release of heavy metals from the sediment to the water resulting in an increase of their bioavailability and consequent toxicity (Young et al., 1987; Wen and Allen, 1999). This aspect can be further investigated when the samples are analyzed in recent sediments, allowing a deta...

2012
G. K. Anornu

The paper evaluated the potential of groundwater pollution in the Densu River Basin of Ghana. Groundwater is an important resource in this basin currently supporting domestic, agricultural and industrial activities. The significance of water resources and the potential for groundwater quality to deteriorate due various anthropogenic activities within the Densu River Basin has necessitated this ...

Journal: :iranian journal of ichthyology 0
seyedeh narjes tabatabaei department of fisheries, faculty of natural resources, university of tehran, karaj, 4111, iran. iraj hashemzadeh-segherloo department of fisheries and environmental sciences, faculty of natural resources and earth sciences, shahr-e-kord university, shahr-e-kord, 115, iran. asghar abdoli department of biodiversity and ecosystem management, environmental research institute, university of shahid beheshty, g.c. velenjak, tehran, iran. maryam milani department of biodiversity and ecosystem management, environmental research institute, university of shahid beheshty, g.c. velenjak, tehran, iran. rouhollah mirzaei department of environmental sciences, faculty of natural resources and earth sciences, kashan university, kashan, isfahan, iran.

this study presents data on age structure, sex ratio, growth, length-weight relationships and condition factor of four populations (n=312) of  two alburnoides species, collected in 2005 and 2006 from the tajan river (caspian sea basin), the ghara-chai and jajrud rivers (namak lake basin), and cheshmeh-ali spring (kavir basin) of iran. sex ratio of the fish, in the studied localities, except in ...

2015
A. Tilmant G. Marques Y. Mohamed

Many river basins throughout the world are increasingly under pressure as water demands keep rising due to population growth, industrialization, urbanization and rising living standards. In the past, the typical answer to meet those demands focused on the supply side and involved the construction of hydraulic infrastructures to capture more water from surface water bodies and from aquifers. As ...

2017
Jason M Farnsworth David M Baasch Chadwin B Smith Kevin L Werbylo

Investigations of breeding ecology of interior least tern (Sternula antillarum athalassos) and piping plover (Charadrius melodus) in the Platte River basin in Nebraska, USA, have embraced the idea that these species are physiologically adapted to begin nesting concurrent with the cessation of spring floods. Low use and productivity on contemporary Platte River sandbars have been attributed to a...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
احمد اسد زاده استادیار گروه اقتصاد کشاورزی دانشگاه تبریز

applying a balanced diet approach to define poverty line, the extent of poverty of the families in the rural vs. urban areas of the karkheh river basin, iran is investigated in the present study. the main source of data is from the household income and expenditure survey figures for years 1983, 1993 and 2004, as provided by the statistical centre of iran. first, a review of different methods of...

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