A Model of the Grazing of Hill Vegetation by the Sheep in the UK. I. The Prediction of Vegetation Biomass

Armstrong, H. M.; Gordon, Iain J.; Grant, Sheila; Hutchings, Nicholas J.; Milne, J. A.; Sibbald, A. R.

doi:10.2307/2404857

Cited by 59 publications

(48 citation statements)

References 36 publications

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“…applying the model of [6] it was possible to predict the biomass for each region and altitude. Therefore, the flux of greenhouse gas during the burn (F burn ) equals: as 50%.…”

Section: Greenhouse Gas Benefit Of Calluna Energy Productionmentioning

confidence: 99%

“…Calluna goes through a life cycle from pioneer through building to mature and finally degenerate [5]. Late stage mature and degenerate Calluna will blanket an environment which creates an unproductive ecosystem because Calluna is not a preference food for grazers [6]; and it is poor forage for red grouse (Lagopus lagopus). Furthermore when it becomes dominant it lowers the biodiversity [7] and represents a large fuel store prone to wildfire [8].…”

Section: Introductionmentioning

confidence: 99%

“…[24]). However, [6] present a model of biomass production of Calluna as part of modelling grazing for sheep. The model of [6] predicts Calluna productivity based upon a lapse rate where the lapse rate was adjusted for 10 distinct regions across the country ( Figure 1) defined by the mean July temperature, the Calluna biomass produced per year (kg dry matter ha =1 yr -1 ) is…”

Section: Introductionmentioning

confidence: 99%

“…However, when calculating the greenhouse gas benefit of changing from managed burning to cutting of Calluna for biomass then the impact of the current activities was important. Second, in the terms of the energy potential of Calluna biomass production it was possible to produce values by per hectare for each of the 10 regions defined by [6] and for the UK as a whole based upon average numbers for production and weighted by the area of Calluna in each of the 10 regions…”

Section: Introductionmentioning

confidence: 99%

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The potential use of heather, Calluna vulgaris, as a bioenergy crop

Worrall

Clay

2014

Biomass and Bioenergy

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The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. . When considered across the UK the potential energy production was up to 40.7 PJyr -1 and the potential greenhouse gas saving was upto -2061 ktonnes CO 2eq yr -1 if the all Calluna could be brought into production and substituted for coal.

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“…applying the model of [6] it was possible to predict the biomass for each region and altitude. Therefore, the flux of greenhouse gas during the burn (F burn ) equals: as 50%.…”

Section: Greenhouse Gas Benefit Of Calluna Energy Productionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The potential use of heather, Calluna vulgaris, as a bioenergy crop

Worrall

Clay

2014

Biomass and Bioenergy

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“…Simulation models of agro-pastoral systems to investigate grazing dynamics in rangelands and evaluate management practices A few simulation models have tackled the problem of intake in highly heterogeneous vegetations, either by empirically introducing a shrub component (Armstrong et al, 1997a and1997b) or by considering a wider array of plant species (Freer et al, 1997). In both cases, the abundance and digestibility of the plant material were the main criteria for diet selection.…”

Section: Indicators To Support Grazing Management Decisions In Heteromentioning

confidence: 99%

Rangeland utilization in Mediterranean farming systems

Jouven

Lapeyronie

Moulin

et al. 2010

Animal

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In the countries surrounding the Mediterranean basin, most of the semi-natural grazing lands are covered by rangelands. Rangelands can be defined as highly heterogeneous natural vegetation communities with high conservation value, growing in harsh environments (poor soils, unfavourable climatic conditions). In the recent socio-economic context, traditional livestock grazing practices that enabled one to reconcile rangeland preservation and animal production no longer apply, especially because they require labour that has become scarce and costly. The consequence is rangeland degradation, due to underutilization in Southern Europe, and overutilization in Northern Africa. We analysed issues raised by rangeland utilization in livestock farming systems of the Mediterranean basin. Based on a review of the scientific literature about rangeland utilization in this area, we argue that the best way to reconcile animal production and rangeland preservation would be to promote management practices allowing animals to express their adaptative capacities in feeding behaviour and productive response. In order to propose management practices adapted to extensive and simplified systems, we conclude that research efforts should focus on: (i) proposing a functional characterization of vegetation heterogeneity at the scale of the vegetation community, (ii) validating the criteria determining animals' foraging behaviour on Mediterranean rangelands, (iii) developing and using simulation models to test management strategies against seasonal and long-term variability in climatic conditions and (iv) evaluating the potential of modern technologies for improving rangeland utilization.

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Tragedy of the commons

Hamill

Gilbert

2015

Agent‐Based Modelling in Economics

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A Model of the Grazing of Hill Vegetation by the Sheep in the UK. I. The Prediction of Vegetation Biomass

Cited by 59 publications

References 36 publications

The potential use of heather, Calluna vulgaris, as a bioenergy crop

The potential use of heather, Calluna vulgaris, as a bioenergy crop

Rangeland utilization in Mediterranean farming systems

Tragedy of the commons

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