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Integrating food production and biodiversity

energy and scale issues in implementation

Belfrage, Kristina (2014). Integrating food production and biodiversity. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880 ; 2014:57
ISBN 978-91-576-8062-4
eISBN 978-91-576-8063-1
[Doctoral thesis]

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The aim of this thesis was to test the hypotheses that (1) biodiversity at a farm level differs between small and large farms, and (2) it is possible to combine high biodiversity at farm level with high food production, sustainable nutrient circulation, and self-sufficiency in fuels. In the research area in SE Sweden, six small farms (<52 ha) and six large farms (>135 ha) were selected for the studies. The farm with the highest biodiversity was selected as a case study farm for the productivity and biofuel studies. Differences in biodiversity between small and large farms were assessed by comparing number of birds and herbaceous plant species plus the number of bird territories, bumblebees, and butterflies. Both on-farm heterogeneity and surrounding landscape heterogeneity were measured by calculating the Shannon-Wiener Diversity Index. Productivity was measured as the number of people supplied with food with different livestock combinations and types of biofuels. The biofuel scenarios were evaluated regarding their impact on the number of people supplied with food, and NPK fluxes at farm level. The biofuels were crude rapeseed oil, horse draft, ethanol from wheat, and ethanol from potatoes. The results showed that twice as many butterflies, breeding bird species and bird territories, five times as many bumblebees, and almost twice as many herbaceous non-crop plant species were found on the small farms compared to the large farms. The small farms also had significantly higher on-farm landscape heterogeneity. Globally, on average, 0.2 ha of farmland is available per capita, i.e. every ha supports 5 persons. This production, and even slightly more was achieved when using a combination of a workhorse and a crude rapeseed oil-fuelled tractor. Ethanol from wheat had the largest impact on food production. All biofuels tested resulted in a positive balance for N, but in deficits for P and K. The results show that high biodiversity and high production of food and biofuels can be combined on the same farm. The results also suggest that this combination of high biodiversity and high production is enhanced by small-scale farming.

Authors/Creators:Belfrage, Kristina
Title:Integrating food production and biodiversity
Subtitle:energy and scale issues in implementation
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :September 2014
Number of Pages:85
I.Belfrage, K., Björklund J., and Salomonsson L. (2005). The effects of farm size and organic farming on diversity of birds, pollinators, and plants in a Swedish landscape. Ambio 34, 8: 582–588
II.Belfrage, K., Salomonsson L., and Björklund J. (2014). The effects of farm size and on-farm landscape heterogeneity on biodiversity; case-study of twelve farms in a Swedish landscape. Submitted to Agroecology and Sustainable Food Systems
III.Johansson, S., Belfrage K., and Olsson M. (2013). Impact on food productivity by fossil fuel independence – A case study of a Swedish small-scale integrated organic farm. Acta Agriculturae Scandinavica. Section B – Soil & Plant Science. DOI: 10.1080/09064710.2012.733020
IV.Johansson, S., Ohlander L., Belfrage K., Sundberg C., and Hansson P.-A. (2013). How the choice of biofuel system in a small-scale Swedish organic farm affects food production and NPK balance. Acta Agriculturae Scandinavica. Section B – Soil & Plant Science. DOI: 10.1080/09064710.2013.867071
Place of Publication:Uppsala
Publisher:Department of Urban and Rural Development, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-576-8062-4
ISBN for electronic version:978-91-576-8063-1
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:F Plant production > F08 Cropping patterns and systems
P Natural resources > P06 Renewable energy resources
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
Agrovoc terms:food production, plant production, biodiversity, small farms, large farms, biofuels, draught horses, self sufficiency, small scale farming, landscape, land use, sweden
Keywords:small-scale farming, agriculture, biodiversity, landscape heterogeneity, biofuels, food production, self-sufficiency, horse draft
Permanent URL:
ID Code:11494
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Urban and Rural Development
(LTJ, LTV) > Dept. of Urban and Rural Development
External funders:Ekhaga Foundation
Deposited By: Kristina Belfrage
Deposited On:08 Sep 2014 11:33
Metadata Last Modified:02 Dec 2014 11:08

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