نتایج جستجو برای: climatic drought

تعداد نتایج: 61486  

2017
Anna M. De Leonardis Maria Petrarulo Pasquale De Vita Anna M. Mastrangelo

Stress is defined as any soil and climatic conditions or combination of both that hinders the full realization of genetic potential of a plant, limiting their growth, development and reproduction. These effects in plants of agricultural interest have a major impact on productivity and quality and thus represent, together with biotic stress, the cause of the gap between yield potential and actua...

2017
Gunnar Carnwath Cara Nelson

Significant increases in tree mortality due to drought-induced physiological stress have been documented worldwide. This trend is likely to continue with increased frequency and severity of extreme drought events in the future. Therefore, understanding the factors that influence variability in drought responses among trees will be critical to predicting ecosystem responses to climate change and...

2015
Alireza Farahmand Amir AghaKouchak

This paper introduces the Standardized Drought Analysis Toolbox (SDAT) that offers a generalized framework for deriving nonparametric univariate and multivariate standardized indices. Current indicators suffer from deficiencies including temporal inconsistency, and statistical incomparability. Different indicators have varying scales and ranges and their values cannot be compared with each othe...

ژورنال: طب جنوب 2019
Karampour , Mostafa, Shamsipour , Ali Akbar, Yarahmadi , Daruish, Zarei Cheghabalaki , Zahra,

Background Cutaneous Leishmaniasis (CL) is an important infection with a high incidence rate. The spatiotemporal dynamics of this disease is mainly determined by three main components of parasite, reservoir and vector. Climatic factors can significantly affect its incidence through their impact on these components. Materials and Methods: The present study aimed to assess the effects of climat...

2012
Anja Vogel Michael Scherer-Lorenzen Alexandra Weigelt

The degree to which biodiversity may promote the stability of grasslands in the light of climatic variability, such as prolonged summer drought, has attracted considerable interest. Studies so far yielded inconsistent results and in addition, the effect of different grassland management practices on their response to drought remains an open question. We experimentally combined the manipulation ...

2015
Ivano Brunner Claude Herzog Melissa A. Dawes Matthias Arend Christoph Sperisen

The ongoing climate change is characterized by increased temperatures and altered precipitation patterns. In addition, there has been an increase in both the frequency and intensity of extreme climatic events such as drought. Episodes of drought induce a series of interconnected effects, all of which have the potential to alter the carbon balance of forest ecosystems profoundly at different sca...

2016
Stefani Daryanto Lixin Wang Pierre-André Jacinthe

Drought has been a major cause of agricultural disaster, yet how it affects the vulnerability of maize and wheat production in combination with several co-varying factors (i.e., phenological phases, agro-climatic regions, soil texture) remains unclear. Using a data synthesis approach, this study aims to better characterize the effects of those co-varying factors with drought and to provide crit...

Journal: :Proceedings. Biological sciences 2009
Zhibin Zhang Bernard Cazelles Huidong Tian Leif Christian Stige Achim Bräuning Nils Chr Stenseth

Global warming is currently of great concern. Yet the ecological effects of low-frequency climate variations remain largely unknown. Recent analyses of interdecadal variability in population abundance of the Oriental migratory locust (Locusta migratoria manilensis) in China have revealed negative associations with temperature and positive associations with Yangtze drought and flood frequencies ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Ivan C Hanigan Colin D Butler Philip N Kokic Michael F Hutchinson

There is concern in Australia that droughts substantially increase the incidence of suicide in rural populations, particularly among male farmers and their families. We investigated this possibility for the state of New South Wales (NSW), Australia between 1970 and 2007, analyzing data on suicides with a previously established climatic drought index. Using a generalized additive model that cont...

2014
Annette Leingärtner Bernhard Hoiss Jochen Krauss Ingolf Steffan-Dewenter

Climatic extreme events can cause the shift or disruption of plant-insect interactions due to altered plant quality, e.g. leaf carbon to nitrogen ratios, and phenology. However, the response of plant-herbivore interactions to extreme events and climatic gradients has been rarely studied, although climatic extremes will increase in frequency and intensity in the future and insect herbivores repr...

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