scholarly journals Case Study: Feeding strategy and pasture quality relative to nutrient requirements of dairy cows in the northeastern United States

2016 ◽  
Vol 32 (4) ◽  
pp. 523-530 ◽  
Author(s):  
A.N. Hafla ◽  
K.J. Soder ◽  
André F. Brito ◽  
Richard Kersbergen ◽  
Fay Benson ◽  
...  
Keyword(s):  
United States ◽  
Dairy Cows ◽  
Feeding Strategy ◽  
Nutrient Requirements ◽  
Northeastern United States ◽  
Pasture Quality

Identifying credible and diverse GCMs for regional climate change studies—case study: Northeastern United States

2019 ◽  
Vol 154 (3-4) ◽  
pp. 367-386 ◽  
Author(s):  
Ambarish V. Karmalkar ◽  
Jeanne M. Thibeault ◽  
Alexander M. Bryan ◽  
Anji Seth
Keyword(s):  
Climate Change ◽  
United States ◽  
Regional Climate ◽  
Regional Climate Change ◽  
Northeastern United States

Plankton Dynamics and Nutrient Enrichment of the Scotian Shelf

1977 ◽  
Vol 34 (7) ◽  
pp. 1004-1018 ◽  
Author(s):  
Robert O. Fournier ◽  
John Marra ◽  
Richard Bohrer ◽  
Mary Van Det
Keyword(s):  
United States ◽  
Key Words ◽  
Nutrient Enrichment ◽  
Average Rate ◽  
Euphotic Zone ◽  
Nutrient Requirements ◽  
Northeastern United States ◽  
Scotian Shelf ◽  
Biological Variables ◽  
Consistent Feature

Four seasonal cruises were conducted on a 270-km-long transect normal to the coast of Nova Scotia. Most biological variables measured along this transect show maximum values in the outer 90 km. These maxima usually occur closely associated with an oceanic front which is a consistent feature of this region. Enhanced vertical transport of nutrients is postulated to occur along this front, although the mechanism is unknown. A model proposed several years ago to explain shelf enrichment off the northeastern United States was examined and found to be consistent with the Scotian Shelf data. Sporadic advection of nutrient-rich Slope Water onto the shelf at the average rate of 0.33 cm∙s−1 would, upon entering the euphotic zone, satisfy 20% of phytoplankton nutrient requirements during the spring and summer. Recycling would account for the remaining 80%. Key words: phytoplankton, zooplankton, enrichment, Scotian Shelf, excretion, fronts, nutrients, productivity, advection, recycling

scholarly journals Water use governance in a temperate region: Implications for agricultural climate change adaptation in the Northeastern United States

AMBIO ◽  
2020 ◽  
Author(s):  
Rachel E. Schattman ◽  
Meredith T. Niles ◽  
Hannah M. Aitken
Keyword(s):  
Climate Change ◽  
United States ◽  
Water Governance ◽  
Northeastern United States ◽  
Regulatory Frameworks ◽  
If Current ◽  
Access To Water ◽  
Insight Into ◽  
Current Governance

AbstractClimate change and access to water are interrelated concerns for agriculture and other sectors, even in temperate regions. Governance approaches and regulatory frameworks determine who has access to water, for what purpose, and when. In the northeastern United States, water governance has historically been conducted by states through a combination of statutory guidance and common law. However, it is unclear what effect if current governance approaches will be sufficient for achieving resource conservation and equitable allocation in a changing climate. To provide insight into these issues, we conducted the first review of freshwater governance in the 12 states that comprise the U.S. Northeast. Specifically, we examine their heterogeneous approaches to surface and groundwater use, permitting and reporting, and scarcity provisions. Using agriculture as the sector of focus, we show through narrative review and quantitative analysis that change in the proportion of cropland that is irrigated in each state does not differ based on governance approach. We also suggest that future decades may bring regulatory shifts relevant to agriculture, changes in enforcement, increased competition between agriculture and other users, and greater potential competition between states for water resources. This case study raises the question: how should we prepare for the time when competition for, or degradation of, a resource surpasses the ability of existing governance mechanisms to ensure conservation and equitable distribution?

scholarly journals Herd-level risk factors for hock injuries in freestall-housed dairy cows in the northeastern United States and California

2013 ◽  
Vol 96 (6) ◽  
pp. 3758-3765 ◽  
Author(s):  
A.K. Barrientos ◽  
N. Chapinal ◽  
D.M. Weary ◽  
E. Galo ◽  
M.A.G. von Keyserlingk
Keyword(s):  
United States ◽  
Risk Factors ◽  
Dairy Cows ◽  
Northeastern United States ◽  
Herd Level
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