10.1016/j.agee.2017.12.015

10.1016/j.agee.2017.12.015 Agriculture, Ecosystems and Environment 255 (2018) 12–19 Contents lists available at ScienceDirect Agriculture, Ecosystems and Environment journal homepage: www.elsevier.com/locate/agee Sustainable livestock production in sub-arctic Alaska: Plant and soil responses to simulated intensively managed grazing Laura Starr , Steven Seefeldt, Mingchu Zhang, Janice Rowell School of Natural Resources and Extension, University of Alaska Fairbanks P.O. Box 757140 Fairbanks, AK, USA ARTICLE I NFO ABSTRACT Keywords: Managing a robust pasture ecosystem and optimizing available forage under sub-arctic conditions in interior Sub-arctic agriculture Alaska is a challenge. The region is characterized by a short growing season, slow residue decomposition rates Simulated grazing and undeveloped soils that are vulnerable to compaction and erosion. The goal of this research was to examine Nutrient cycling the relative and combined role of grazing mechanisms; herbivory, trampling, and manure/urine deposition on Pasture ecology forage yield and soil health in sub-arctic pastures within a simulated intensively managed rotational grazing (IMRG) framework. A full factorial experiment of muskox (Ovibos moschatus) manure/urine deposition (M), simulated trampling (T), and herbivory (forage clipping) (H), and control (C) mimicking IMRG timing and intensity, was conducted at the Robert G. White Large Animal Research Station, University of Alaska, Fairbanks. The simulations were conducted on http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

10.1016/j.agee.2017.12.015

Elsevier — Jun 11, 2020

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Abstract

Agriculture, Ecosystems and Environment 255 (2018) 12–19 Contents lists available at ScienceDirect Agriculture, Ecosystems and Environment journal homepage: www.elsevier.com/locate/agee Sustainable livestock production in sub-arctic Alaska: Plant and soil responses to simulated intensively managed grazing Laura Starr , Steven Seefeldt, Mingchu Zhang, Janice Rowell School of Natural Resources and Extension, University of Alaska Fairbanks P.O. Box 757140 Fairbanks, AK, USA ARTICLE I NFO ABSTRACT Keywords: Managing a robust pasture ecosystem and optimizing available forage under sub-arctic conditions in interior Sub-arctic agriculture Alaska is a challenge. The region is characterized by a short growing season, slow residue decomposition rates Simulated grazing and undeveloped soils that are vulnerable to compaction and erosion. The goal of this research was to examine Nutrient cycling the relative and combined role of grazing mechanisms; herbivory, trampling, and manure/urine deposition on Pasture ecology forage yield and soil health in sub-arctic pastures within a simulated intensively managed rotational grazing (IMRG) framework. A full factorial experiment of muskox (Ovibos moschatus) manure/urine deposition (M), simulated trampling (T), and herbivory (forage clipping) (H), and control (C) mimicking IMRG timing and intensity, was conducted at the Robert G. White Large Animal Research Station, University of Alaska, Fairbanks. The simulations were conducted on

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