نتایج جستجو برای: grazing management

تعداد نتایج: 864634  

Journal: :Journal of animal science 2015
M B Chiavegato J E Rowntree W J Powers

Greenhouse gas (GHG) fluxes and soil organic carbon (SOC) accumulation in grassland ecosystems are intimately linked to grazing management. This study assessed the carbon equivalent flux (Ceq) from 1) an irrigated, heavily stocked, low-density grazing system, 2) a nonirrigated, lightly stocked, high-density grazing system, and 3) a grazing-exclusion pasture site on the basis of the GHG emission...

2014
Anja Linstädter Jürgen Schellberg Katharina Brüser Cristian A. Moreno García Roelof J. Oomen Chris C. du Preez Jan C. Ruppert Frank Ewert

Despite our growing knowledge on plants' functional responses to grazing, there is no consensus if an optimum level of functional aggregation exists for detecting grazing effects in drylands. With a comparative approach we searched for plant functional types (PFTs) with a consistent response to grazing across two areas differing in climatic aridity, situated in South Africa's grassland and sava...

2013
Aimee N. Hafla Jennifer W. MacAdam Kathy J. Soder

In 2010, the National Organic Program implemented a rule for the US stating that pasture must be a significant source of feed in organic ruminant systems. This article will focus on how the pasture rule has impacted the management, economics and nutritional value of products derived from organic ruminant systems and the interactions of grazing cattle with pasture forages and soils. The use of s...

The wide ecological area consists of a rangeland with special vegetation and one of the key factors in rangeland management is to select Management Indicator Species (MIS). Management indicator species based on a new method such as Analytical Network Process-Decision Making Trial and Evaluation (ANP-DEMATEL) is one of the most important stages in the successful Range management as choosing a su...

2011
Jane Hamilton Michael Quirk Rodd Dyer Joe Scanlan Timothy Emery David Phelps

A novel combination of industry knowledge and experience, bio-economic modelling and research findings produced compelling whole-of-enterprise propositions for the improved adoption of best-bet management practices in the extensive beef grazing industry of northern Australia. The Northern Grazing Systems (NGS) project brought together three multi disciplinary teams cooperating towards a common ...

Journal: :Journal of environmental management 2014
Natalia Lukomska Martin F Quaas Stefan Baumgärtner

We study the role of bush encroachment control for a farmer's income and income risk in a stochastic ecological-economic model of grazing management in semi-arid rangelands. In particular, we study debushing as an instrument of risk management that complements the choice of an adaptive grazing management strategy for that sake. We show that debushing, while being a good practice for increasing ...

2003
I R Johnson D F Chapman A J Parsons J Eckard W J Fulkerson

Abstract DairyMod is a biophysical simulation model of the dairy pasture system. It has been designed to explore dairy pasture management and incorporates the principal rotational grazing management strategies that are used in Australia. It also includes full treatment of the fluxes of water and nutrients in the grazing system, and therefore it also has utility in analyzing changes in resource ...

2011
Wei Li Hai-Zhou Huang Zhi-Nan Zhang Gao-Lin Wu

Livestock grazing is one of the most important factors influencing the above-ground community composition and structure in a natural grassland ecosystem. Different grazing intensities also have the potential to alter soil C and N storage substantially in grasslands. We conducted a field community study and soil analyses to determine the effects of different grazing intensities on the above-grou...

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