نتایج جستجو برای: zoning climate drought

تعداد نتایج: 199403  

2014
Elizabeth Christenson Mark Elliott Ovik Banerjee Laura Hamrick Jamie Bartram

Global climate change (GCC) has led to increased focus on the occurrence of, and preparation for, climate-related extremes and hazards. Population exposure, the relative likelihood that a person in a given location was exposed to a given hazard event(s) in a given period of time, was the outcome for this analysis. Our objectives were to develop a method for estimating the population exposure at...

2011
S. Quiroga

Drought events in the Mediterranean are likely to increase in frequency, duration and intensity due to climate change, thereby affecting crop production. Information about drought is valuable for river basin authorities and the farmers affected by their decisions. The economic value of this information and the resulting decisions are of interest to these two stakeholder groups and to the inform...

2016
Jan-Peter George Michael Grabner Sandra Karanitsch-Ackerl Konrad Mayer Lambert Weißenbacher Silvio Schueler

Assessing intra-specific variation in drought stress response is required to mitigate the consequences of climate change on forest ecosystems. Previous studies suggest that European larch (Larix decidua Mill.), an important European conifer in mountainous and alpine forests, is highly vulnerable to drought. In light of this, we estimated the genetic variation in drought sensitivity and its degr...

2004
William J. Waltman Steve Goddard Stephen E. Reichenbach Gang Gu Ian J. Cottingham Jeffrey S. Peake Tsegaye Tadesse Sherri K. Harms Jitender S. Deogun

The agricultural landscapes of Nebraska reflect a complex pattern of soil climate regimes and inherent variability that influence the cropping systems, behavior of farmers, and the health and sustainability of rural communities. The USDA crops and soils databases were coupled with the Enhanced Newhall Simulation Model (ENSM) to explain spatial relationships of soil climate regimes, climatic shi...

2002
Hallie Eakin Julie Conley

For ranchers in the Southwest, unanticipated droughts pose serious management challenges. Social and economic factors combine with the physical impacts of drought to render ranchers more vulnerable to climate variability. Using agricultural census data and interviews with ranchers, we analyze ranchers’ responses to drought events in 1996 and 1999. From this analysis we develop an initial assess...

Journal: :Tree physiology 2012
Britta Eilmann Andreas Rigling

Climate change is challenging forestry management and practices. Among other things, tree species with the ability to cope with more extreme climate conditions have to be identified. However, while environmental factors may severely limit tree growth or even cause tree death, assessing a tree species' potential for surviving future aggravated environmental conditions is rather demanding. The ai...

Journal: :Ecology 2014
M Susan Moran Guillermo E Ponce-Campos Alfredo Huete Mitchel P McClaran Yongguang Zhang Erik P Hamerlynck David J Augustine Stacey A Gunter Stanley G Kitchen Debra P C Peters Patrick J Starks Mariano Hernandez

Grasslands across the United States play a key role in regional livelihood and national food security. Yet, it is still unclear how this important resource will respond to the prolonged warm droughts and more intense rainfall events predicted with climate change. The early 21st-century drought in the southwestern United States resulted in hydroclimatic conditions that are similar to those expec...

Journal: :Journal of the Royal Society, Interface 2009
Mikhail A Semenov

The frequency and magnitude of extreme weather events are likely to increase with global warming. However, it is not clear how these events might affect agricultural crops and whether yield losses resulting from severe droughts or heat stress will increase in the future. The aim of this paper is to analyse changes in the magnitude and spatial patterns of two impact indices for wheat: the probab...

2018
Carlos Trujillo-Moya Jan-Peter George Silvia Fluch Thomas Geburek Michael Grabner Sandra Karanitsch-Ackerl Heino Konrad Konrad Mayer Eva Maria Sehr Elisabeth Wischnitzki Silvio Schueler

Norway spruce (Picea abies) is by far the most important timber species in Europe, but its outstanding role in future forests is jeopardized by its high sensitivity to drought. We analyzed drought response of Norway spruce at the warmest fringe of its natural range. Based on a 35-year old provenance experiment we tested for genetic variation among and within seed provenances across consecutivel...

2015
Ali Mehran Omid Mazdiyasni Amir AghaKouchak

Socioeconomic drought broadly refers to conditions whereby the water supply cannot satisfy the demand. Most previous studies describe droughts based on large-scale meteorological/hydrologic conditions, ignoring the demand and local resilience to cope with climate variability. Reservoirs provide resilience against climatic extremes and play a key role in water supply and demand management. Here ...

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