نتایج جستجو برای: runoff decreases under the a2 scenario

تعداد نتایج: 16196305  

Journal: :آب و خاک 0
نسرین سیاری امین علیزاده محمد بنایان اول علیرضا فریدحسینی مسعودرضا حسامی کرمانی

abstract the climate change was known to force local hydrology, through changes in the pattern of precipitation, temperature and the other hydrological variables. in this research, the impact of global warming on maximum and minimum temperature, precipitation and evapotranspiration (wheat, corn, tomato and sugar beet) of kashafrood basin under two climate change scenarios (a2 and b2), and the o...

پایان نامه :موسسه آموزش عالی غیردولتی رودکی تنکابن - دانشکده ادبیات و زبانهای خارجی 1393

abstract the present study was an attempt to investigate the effect of critical thinking on writing ability of 60 iranian intermediate efl learners studying at chenar language institute in khuzestan, iran. to this end, the participants of the study were selected based on their performance in an pet test, a cornell critical thinking test form x and a pre-test of writing. the participants un...

2007
D. Sharma

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Global Climate Models (GCMs) precipitation scenarios are often characterized by biases and coarse resolution that limit their direct application for basin level hydrological modeling. Bias-correction and spatial disaggregation methods are ...

2017
Xiaotao Huang Geping Luo Huili He Xinxin Wang

Identifying the effects of grazing is critical for the conservation, protection and sustainable use of arid grassland ecosystems. However, research regarding the ecological effects of grazing along mountainous elevation gradients is limited in arid areas, particularly at the regional scale. Using the Biome-BGC grazing model, we explored the effects of grazing on grassland net primary productivi...

Journal: :journal of rangeland science 2014
amir saadatfar hossein barani abdol reza bahremand ali reza massah bavani adel sepehry

rangelands are one of the most vulnerable parts concerning the climatechanges‟ impacts. these impacts are even stronger in the arid and semi-arid areas whererangeland ecosystems are in critical conditions. therefore, it is crucial to figure out theactual dynamics of climate variations on the rangelands. the aim of this research was todetermine climate changes in khabr rangeland, kerman, iran. s...

Journal: :تحقیقات آب و خاک ایران 0
مرضیه خیر اندیش کارشناس ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران نوذر قهرمان استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران جواد بذر افشان استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران

in agricultural meteorology, the growing season is the period within each year when crops can be grown from a view of thermal conditions. this period is in general, between the last and first frost dates in spring and autumn when temperature is above a specific threshold. there are two other definitions when using a 5 °c as threshold. one of the methods employed in studying future climate is us...

Journal: :Journal of Korea Water Resources Association 2007

2006
S. Wang

The impact of climate change on local discharge variability is investigated in the Suir River Catchment which is located in the south-east of Ireland. In this paper, the Rossby Centre Regional Atmospheric Model (RCA) is driven by different global climate data sets. For the past climate (1961–2000), the model is driven by ECMWF reanalysis (ERA-40) data as well as by the output of the general cir...

ژورنال: علوم آب و خاک 2016
اسلامیان, سیدسعید, زارعیان, محمدجواد, صفوی, حمیدرضا,

This study investigated the effects of climate change on the evapotranspiration amount and water balance in the Zayandeh-Rud river basin. Two important weather stations; Isfahan and Chelgerd stations, located in the East and West of the basin respectively, were selected for investigation in this study. The combination of 15 GCM models were created based on the weighting method and three pattern...

2013
Pankaj Kr Roy Asis Mazumdar

The present study is an attempt to assess the impacts of climate change on water resources of the river basins of India which have immense importance in domestic, industrial agricultural and hydropower scenario. A distributed hydrological model developed from HEC-HMS was used on the Indian river basins using the projected daily precipitation and temperature data for the continuous daily range f...

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