DOI: 10.1016/j.crm.2015.02.001
Scopus记录号: 2-s2.0-84924208791
论文题名: Exploring changes in rainfall intensity and seasonal variability in the Southeastern U.S.: Stakeholder engagement, observations, and adaptation
作者: Dourte D.R. ; Fraisse C.W. ; Bartels W.-L.
刊名: Climate Risk Management
ISSN: 22120963
出版年: 2015
卷: 7 起始页码: 11
结束页码: 19
语种: 英语
英文关键词: Agriculture
; Climate change adaptation
; Rainfall intensity
; Stakeholder engagement
英文摘要: The distribution of rainfall has major impacts in agriculture, affecting the soil, hydrology, and plant health in agricultural systems. The goal of this study was to test for recent changes in rainfall intensity and seasonal rainfall variability in the Southeastern U.S. by exploring the data collaboratively with agricultural stakeholders. Daily rainfall records from the Global Historical Climatology Network were used to analyze changes in rain intensity and seasonal rainfall variability. During the last 30. years (1985-2014), there has been a significant change (53% increase) in the number of extreme rainfall days (>152.4 mm/day) and there have been significant decreases in the number of moderate intensity (12.7-25.4 mm/day) and heavy (25.4-76.2 mm/day) rainfall days in the Southeastern U.S., when compared to the previous 30-year period (1955-1984). There have also been significant decreases in the return period of months in which greater than half of the monthly total rain occurred in a single day; this is an original, stakeholder-developed rainfall intensity metric. The variability in spring and summer rainfall increased during the last 30 years, but winter and fall showed less variability in seasonal totals in the last 30 years. In agricultural systems, rainfall is one of the leading factors affecting yield variability; so it can be expected that more variable rainfall and more intense rain events could bring new challenges to agricultural production. However, these changes can also present opportunities for producers who are taking measures to adjust management strategies to make their systems more resilient to increased rain intensity and variability. © 2015 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59052
Appears in Collections: 气候变化与战略
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作者单位: Agricultural and Biological Engineering, University of Florida, United States; Florida Climate Institute, University of Florida, United States
Recommended Citation:
Dourte D.R.,Fraisse C.W.,Bartels W.-L.. Exploring changes in rainfall intensity and seasonal variability in the Southeastern U.S.: Stakeholder engagement, observations, and adaptation[J]. Climate Risk Management,2015-01-01,7