scholarly journals Warming Winters Reduce Chill Accumulation for Peach Production in the Southeastern United States

Climate ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 94 ◽  
Author(s):  
Lauren E. Parker ◽  
John T. Abatzoglou
Keyword(s):  
Climate Change ◽  
United States ◽  
Southeastern United States ◽  
Anthropogenic Climate Change ◽  
Risk Assessments ◽  
Climate Projections ◽  
Winter Chill ◽  
Cultivar Selection ◽  
Production Practices ◽  
Selection For

Insufficient winter chill accumulation can detrimentally impact agriculture. Understanding the changing risk of insufficient chill accumulation can guide orchard management and cultivar selection for long-lived perennial crops including peaches. This study quantifies the influence of modeled anthropogenic climate change on observed chill accumulation since 1981 and projected chill accumulation through the mid-21st century, with a focus on principal peach-growing regions in the southeastern United States, and commonly grown peach cultivars with low, moderate, and high chill accumulation requirements. Anthropogenic climate change has reduced winter chill accumulation, increased the probability of winters with low chill accumulation, and increased the likelihood of winters with insufficient chill for commonly grown peach cultivars in the southeastern United States. Climate projections show a continuation of reduced chill accumulation and increased probability of winters with insufficient chill accumulation for cultivars with high chill requirements, with approximately 40% of years by mid-century having insufficient chill in Georgia. The results highlight the importance of inter-annual variability in agro-climate risk assessments and suggest that adaptive measures may be necessary in order to maintain current peach production practices in the region in the coming decades.

Perceptions of and Attitudes Toward Climate Change in the Southeastern United States

2014 ◽  
pp. 287-299 ◽  
Author(s):  
David Himmelfarb ◽  
John Schelhas ◽  
Sarah Hitchner ◽  
Cassandra Johnson Gaither ◽  
Katherine Dunbar ◽  
...  
Keyword(s):  
Climate Change ◽  
United States ◽  
Southeastern United States

scholarly journals Impact of Anthropogenic Climate Change on United States Major Hurricane Landfall Frequency

2019 ◽  
Vol 7 (5) ◽  
pp. 135 ◽  
Author(s):  
Emma L. Levin ◽  
Hiroyuki Murakami
Keyword(s):  
Climate Change ◽  
United States ◽  
High Resolution ◽  
The United States ◽  
Anthropogenic Climate Change ◽  
Buffer System ◽  
Geophysical Fluid Dynamics Laboratory ◽  
Long Duration ◽  
Major Hurricane ◽  
The U.S

Although anthropogenic climate change has contributed to warmer ocean temperatures that are seemingly more favorable for Atlantic hurricane development, no major hurricanes made landfall in the United States between 2006 and 2016. The U.S., therefore, experienced a major hurricane landfall drought during those years. Using the high-resolution Geophysical Fluid Dynamics Laboratory 25 km grid High-Resolution Forecast-Oriented Low Ocean Resolution (HiFLOR) global climate model, the present study shows that increases in anthropogenic forcing, due to increases in greenhouse gasses, are associated with fewer long-duration major hurricane landfall droughts in the U.S., which implies an increase in major hurricane landfall frequency. We create six different fixed-distance ‘buffers’ that artificially circle the United States coastline in 100 km radial increments and can compensate for the bias in hurricane landfall calculations with six-hourly datasets. Major hurricane landfall frequencies are computed by applying the buffer zones to the six-hourly observed and simulated storm track datasets, which are then compared with the observed recorded major hurricane frequencies. We found that the major hurricane landfall frequencies generated with the 200 km buffer using the six-hourly observed best-track dataset are most correlated with the observed recorded major hurricane landfall frequencies. Using HiFLOR with an implemented buffer system, we found less frequent projections of long-duration major hurricane landfall drought events in controlled scenarios with greater anthropogenic global warming, which is independent on the radius of the coastal buffer. These results indicate an increase in U.S. major hurricane landfall frequencies with an increase in anthropogenic warming, which could pose a substantial threat to coastal communities in the U.S.

scholarly journals Southeast Regional Climate Hub Assessment of Climate Change Vulnerability and Adaptation and Mitigation Strategies

2015 ◽  
Author(s):  
Steven McNulty ◽  
Sarah Wiener ◽  
Emrys Treasure ◽  
Jennifer Moore Myers ◽  
Hamid Farahani ◽  
...  
Keyword(s):  
Climate Change ◽  
United States ◽  
Regional Climate ◽  
Southeastern United States ◽  
Extreme Weather ◽  
Mitigation Strategies ◽  
Climate Change Vulnerability ◽  
Priority Needs ◽  
Adaptation And Mitigation

Climate-related variability in rainfall, temperature, and extreme weather (e.g., drought, flood, unseasonal frost) pose significant challenges to working land (i.e., range, forest, and agricultural) managers across the southeastern United States. This document outlines the type of risks that southeastern agriculture and forestry currently face and, in some cases, options to address these risks. Finally, this document looks forward to providing direction on the priority needs of Southeast working land managers and an outline of how the USDA Southeast Climate Hub will address those needs.

scholarly journals Management Considerations for Wheat Production in Florida

EDIS ◽  
2013 ◽  
Vol 2013 (10) ◽  
Author(s):  
David L. Wright ◽  
Ann R. Blount ◽  
Ron D. Barnett ◽  
Cheryl L. Mackowiak ◽  
Nicholas Dufault ◽  
...  
Keyword(s):  
United States ◽  
Coastal Plain ◽  
Best Management Practices ◽  
Management Practices ◽  
Southeastern United States ◽  
Grain Sorghum ◽  
Best Management ◽  
Small Grains ◽  
Production Practices ◽  
High Yields

Higher wheat prices created the impetus for growing wheat in the southeastern United States. Since increasing amounts of corn have been diverted to ethanol production, there is a shortage of grain for America’s livestock industry. This shortage results in higher wheat and soybean prices. Wheat and soybean have been grown together as a double crop throughout the Southeast for many years, which generally increases profitability compared with growing only one of the crops. Planting wheat followed by cotton, peanut or grain sorghum has also become a common practice. The best management practices for high yields of wheat in the Southeast Coastal Plain are well established. This 3-page fact sheet lists production practices for small grains in Florida. Written by D.L. Wright, A.R. Blount, R.D. Barnett, C.L. Mackowiak, N. Dufault, and J. Marois, and published by the UF Department of Agronomy, October 2013. http://edis.ifas.ufl.edu/ag293

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