نتایج جستجو برای: dez and karkheh regions

تعداد نتایج: 16848051  

Knowing how the low flow changes upstream and its trend provides valuable information on water resources management, water rights, and the improvement of crop patterns. It also helps to identify suitable areas for water control management along the river from water resources management perspective. In addition to economic issues, the preservation of river ecosystems is an important matter that ...

Journal: :Revista EntreLinguas 2020

Journal: :international journal of aquatic biology 0
yazdan keivany department of natural resources (fisheries division), isfahan university of technology, isfahan, 84156-83111, iran. ali nezamoleslami department of natural resources (fisheries division), isfahan university of technology, isfahan, 84156-83111, iran. salar dorafshan department of natural resources (fisheries division), isfahan university of technology, isfahan, 84156-83111, iran. soheil eagderi department of fisheries, faculty of natural resources, university of tehran, tehran, iran.

this study describes the length-weight and length-length relationships for 28 populations of garra ruffa in different basins of iran, including tigris, karkheh, karun, persis and hormuz. the length-weight relationships from most localities are reported here for the first time. for most populations the b value was not significantly different from 3, indicating an isometric growth, in a few, it w...

2017
Saeid Ashraf Vaghefi Karim C. Abbaspour Monireh Faramarzi Raghavan Srinivasan Jeffrey G. Arnold Athanasios Loukas

This study examines the water productivity of irrigated wheat and maize yields in Karkheh River Basin (KRB) in the semi-arid region of Iran using a coupled modeling approach consisting of the hydrological model (SWAT) and the river basin water allocation model (MODSIM). Dynamic irrigation requirements instead of constant time series of demand were considered. As the cereal production of KRB pla...

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