نتایج جستجو برای: for example drought

تعداد نتایج: 10412360  

2012
Melanie Gibbs Hans Van Dyck Casper J Breuker

With global climate change, rainfall is becoming more variable. Predicting the responses of species to changing rainfall levels is difficult because, for example in herbivorous species, these effects may be mediated indirectly through changes in host plant quality. Furthermore, species responses may result from a simultaneous interaction between rainfall levels and other environmental variables...

Journal: :Journal of risk and financial management 2023

In order to stress test loan portfolios for the impacts of climate change, historical events need be analyzed create templates future events. Using 2012 Midwestern US drought as an example, this work creates a stress-testing template droughts. The analysis connects weather and crop yield data on local macroeconomic conditions by comparing drought-impacted agricultural counties with nearby urban...

Journal: :Journal of Experimental Botany 2008
Cecilia Vasquez-Robinet Shrinivasrao P. Mane Alexander V. Ulanov Jonathan I. Watkinson Verlyn K. Stromberg David De Koeyer Roland Schafleitner David B. Willmot Merideth Bonierbale Hans J. Bohnert Ruth Grene

The drought stress tolerance of two Solanum tuberosum subsp. andigena landraces, one hybrid (adgxtbr) and Atlantic (S. tuberosum subsp. tuberosum) has been evaluated. Photosynthesis in the Andigena landraces during prolonged drought was maintained significantly longer than in the Tuberosum (Atlantic) line. Among the Andigena landraces, 'Sullu' (SUL) was more drought resistant than 'Negra Ojosa'...

Journal: :Earth Science Informatics 2015
Dimitris Tigkas Harris Vangelis George Tsakiris

Drought is a complex phenomenon which can be characterised mainly by its severity, duration and areal extent. Among these three dimensions, drought severity is the key factor which can be used for drought analysis. Drought indices are typically used to assess drought severity in a meaningful way. DrinC (Drought Indices Calculator) is a software package which was developed for providing a simple...

2018
Rui Guo LianXuan Shi Yang Jiao MingXia Li XiuLi Zhong FengXue Gu Qi Liu Xu Xia HaoRu Li

An in-depth understanding of the effects of drought stress on plant metabolism is necessary to improve the drought tolerance of wheat and to utilize genetic resources for the development of drought stress-tolerant wheat varieties. In this study, the profiles of 58 key metabolites produced by wheat seedlings in response to drought stress were investigated to determine various physiological proce...

Journal: :جغرافیا و مخاطرات محیطی 0
پرویز رضائی محمود روشنی سیده مهشید امیرآبادیزاده

1. introduction droughts are long-term phenomena that can affect large areas and cause severe downturn in economic and social activities. recognizing this phenomenon, its features and properties, knowledge of facilities, capabilities and talents of areas and providing short and long term solutions leads to the effort of the surface water resource managers to prepare for drought mitigation. the ...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
r hajiaghaee psychiatric research center, roozbeh hospital, south kargar street, tehran 13337, iran tel: +98-21-88281866, fax: +98-21-55419113 m heidari iranian academic center for education, culture & research (acecr) s akhondzadeh psychiatric research center, roozbeh hospital, tehran university of medical sciences

evidence-based medicine is now generally perceived to be the dominant operating system in conventional medicine. evidence-based medicine developed concurrently with the internet and the world wide web. this is no coincidence since evidence-based medicine suggests a personal responsibility for clinicians to keep abreast of research that would be difficult without the information access that the ...

2003
Anne Steinemann

Drought management depends on indicators to detect drought conditions, and triggers to activate drought responses. But determining those indicators and triggers presents challenges. Indicators often lack spatial and temporal transferability, comparability among scales, and relevance to critical drought impacts. Triggers often lack statistical integrity, consistency among drought categories, and...

2018
Xinyu Fu Zhenghong Tang Jianjun Wu Kevin McMillan

Drought is widely known as an insidious hazard due to its complex and unique characteristics. Drought disasters have brought tremendous economic losses and significant social and environmental impacts to communities across the globe. To further understand the hazard drought poses and provide insights into planning for drought preparedness, this article conducts a thorough literature review of d...

Journal: :International Journal of Disaster Risk Science 2021

Abstract Drought is projected to become more frequent and increasingly severe under climate change in many agriculturally important areas. However, few studies have assessed mapped the future global crop drought risk—defined as occurrence probability likelihood of yield losses from drought—at high resolution. With support GEPIC-Vulnerability-Risk model, we propose an analytical framework quanti...

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