نتایج جستجو برای: hot and dry climate

تعداد نتایج: 16882819  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

2013
Nathalie Butt Laura J Pollock Clive A McAlpine

Global climate change is already impacting species and ecosystems across the planet. Trees, although long-lived, are sensitive to changes in climate, including climate extremes. Shifts in tree species' distributions will influence biodiversity and ecosystem function at scales ranging from local to landscape; dry and hot regions will be especially vulnerable. The Australian continent has been es...

Journal: :Global change biology 2017
Mulugeta Mokria Aster Gebrekirstos Abrham Abiyu Meine Van Noordwijk Achim Bräuning

Climate-related environmental and humanitarian crisis are important challenges in the Great Horn of Africa (GHA). In the absence of long-term past climate records in the region, tree-rings are valuable climate proxies, reflecting past climate variations and complementing climate records prior to the instrumental era. We established annually resolved multi-century tree-ring chronology from Junip...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده کشاورزی 1390

abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...

2016
Mingjie Zhao Paulo Cesar Tabares-Velasco Jelena Srebric Sridhar Komarneni Robert Berghage

Green roof assemblies influence the total roof surface energy balance for a building. The energy balance for a green roof depends mostly on the selection of plants and substrates suitable for the building’s location. This study measured thermal properties of common green roof materials and selected two types of plants and substrates to simulate transient thermal performance of different green r...

Journal: :Environmental sciences proceedings 2022

Demand for energy-efficient school buildings, which form a major part of public is growing in Iran. Window insulation required to reduce the amount energy wasted through openings. This study investigates effect double-glazing with aerogel compared 3 mm glazing pane and window terms solar gain cooling load. The case studies are primary schools Yazd (hot-dry climate), Bushehr (hot-humid Zanjan (c...

2015
Christian Bunn Peter Läderach Juan Guillermo Pérez Jimenez Christophe Montagnon Timothy Schilling Juan A. Añel

Cultivation of Coffea arabica is highly sensitive to and has been shown to be negatively impacted by progressive climatic changes. Previous research contributed little to support forward-looking adaptation. Agro-ecological zoning is a common tool to identify homologous environments and prioritize research. We demonstrate here a pragmatic approach to describe spatial changes in agro-climatic zon...

2008
Yan Zhao Zicheng Yu Fahu Chen

Pollen data from 30 sites in arid and semi-arid regions of China were reviewed to document regional patterns of Holocene vegetation and climate change and to understand the large-scale controls on these changes. Vegetation at most sites in eastern Inner Mongolia switched between forest, forest steppe, and typical steppe, showing maximum moisture conditions before 6 ka (1 ka 1⁄4 1000 cal yr BP) ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Noah S Diffenbaugh Deepti Singh Justin S Mankin Daniel E Horton Daniel L Swain Danielle Touma Allison Charland Yunjie Liu Matz Haugen Michael Tsiang Bala Rajaratnam

Efforts to understand the influence of historical global warming on individual extreme climate events have increased over the past decade. However, despite substantial progress, events that are unprecedented in the local observational record remain a persistent challenge. Leveraging observations and a large climate model ensemble, we quantify uncertainty in the influence of global warming on th...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Cory W Morin Andrew C Comrie

Climate change will affect the abundance and seasonality of West Nile virus (WNV) vectors, altering the risk of virus transmission to humans. Using downscaled general circulation model output, we calculate a WNV vector's response to climate change across the southern United States using process-based modeling. In the eastern United States, Culex quinquefasciatus response to projected climate ch...

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