Essays about: "exclosure experiment"
Found 4 essays containing the words exclosure experiment.
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1. Att skydda det skyddade : korttidseffekter av hägn på trädföryngring i tre skånska skogsreservat
University essay from SLU/Southern Swedish Forest Research CentreAbstract : Biotiska och abiotiska faktorer har stor inverkan på vilka arter som växer i skogen. Graden av inverkan kan bero på betesskador från klövvilt och tillgång på ljus. Betesskador och ljustillgång kan dels reglera nivån på föryngringen, dels på fördelningen av trädslag i den tempererade skogen. READ MORE
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2. Timing of ungulate browsing and its effect on sapling height and the field layer vegetation : experimental study using seasonel exclosures during one year
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Browsing and grazing by ungulates affect the forest structure by altering species composition and affect the growth in individual trees. The purpose with this study is to investigate the ungulate species composition visiting the clear cut, how timing of browsing affects the height increment in deciduous and conifer saplings, and how deer grazing affects the field layer coverage and height. READ MORE
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3. Shifts within the carbon cycle in response to the absence of keystone herbivore Ovibos moschatus in a high arctic mire
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : Tundra ecosystems are generally recognized as globally important carbon sinks, yet the knowledge on threats to such ecosystems is narrow. Climate change is predicted to reduce the number of muskox (Ovibos moschatus) in the arctic, it is therefore essential to understand the effect herbivores induce on the arctic ecosystem. READ MORE
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4. Modelling vegetation dynamics and carbon fluxes in a high Arctic mire
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : High Arctic wetlands are an important component of the global climate system. Nevertheless estimations of their expected response to climate change and associated climate-feedbacks have large uncertainties. Improving models for vegetation and carbon dynamics of ecosystems is an important step towards making predictions more accurate. READ MORE