Impacts of Climate Change on the Growing Season in the United States

Earth Interactions

Daniel E.Christiansen¹ 

关键词: Growing season;    Climate change;    PRMS model;   

DOI  :  10.1175/2011EI376.1

学科分类：地球科学(综合)

来源: American Geophysical Union

【 摘 要 】

AbstractUnderstanding the effects of climate change on the vegetative growing season is key to quantifying future hydrologic water budget conditions. The U.S. Geological Survey modeled changes in future growing season length at 14 basins across 11 states. Simulations for each basin were generated using five general circulation models with three emission scenarios as inputs to the Precipitation-Runoff Modeling System (PRMS). PRMS is a deterministic, distributed-parameter, watershed model developed to simulate the effects of various combinations of precipitation, climate, and land use on watershed response. PRMS was modified to include a growing season calculation in this study. The growing season was examined for trends in the total length (annual), as well as changes in the timing of onset (spring) and the end (fall) of the growing season. The results showed an increase in the annual growing season length in all 14 basins, averaging 27–47 days for the three emission scenarios. The change in the spring and...

【 授权许可】

Unknown