Practical Ways to Assess Sustainability

Agroscope has developed the foundation of a methodology for assessing the sustainability of Swiss farms. From summer 2016, a set of indicators will be tested on around ten farms. Sustainably managed farms form an important basis for healthy, fit-for-the-future food production.

The assessment of a farm’s sustainability is a vital step in its optimisation. Here, equal consideration must be given to the criteria concerning the three dimensions of environment, economy and society. Agroscope has developed appropriate indicators, and published these in May 2016 in the ‘Agroscope Science’ publication series.

These indicators are the foundation for enabling farmers, consumers and associations as well as interested actors and stakeholders from production, processing and trade to develop a comprehensive farm sustainability assessment. Particular attention is devoted by Agroscope to the social dimension. This field still lacks sufficient resilient and practical indicators that are tailor-made for Swiss farms.

Well-being concept for human well-being

Four project teams developed indicators for assessing social sustainability, with a focus on the three areas of human well-being, animal welfare, and landscape aesthetics. Here, it was shown that the Well-being Concept of the Organization for Economic Cooperation and Development (OECD) represents a good basis for depicting the various aspects of human well-being. To this end, key questions allowing the relevant topics to be described simply and concisely were developed for each sub-aspect such as e.g. work/life balance, social relationships and subjective well-being. 

Owing to the relevance of the topic for agriculture, a project team devoted itself to the calculation of temporal workload. On the basis of the ‘ART Work Budget’ software developed by Agroscope to calculate the expected working time, we derived an indicator by comparing the theoretically derived working-time input and the workforce available on the farm. 

Point system for animal welfare

A further project team noted that using a simple indicator to assess animal welfare cannot cover all of the requirements. The researchers therefore propose a point system that manages without observations or measurements on the animal itself. In this system, points are awarded to measures with an anticipated positive impact on one of the twelve animal welfare aspects taken into account in the existing Welfare®-Quality Protocol measuring instrument, e.g. freedom of movement or the absence of pain.  In order for points to be awarded, the anticipated animal welfare must go beyond the minimum stipulated in the Swiss Animal Protection Law. Follow-up projects will now aim to determine whether a correlation does in fact exist between the number of points awarded and the level of animal welfare.

Indicators for the economy and environment

Agroscope has also developed indicators for the economic and environmental dimensions; detailed information on these can be found in the relevant Agroscope publication of May 2016. The economic sustainability of a farm can be illustrated by two key figures in each of the following areas: profitability (earned income per family labour unit and total return on capital); liquidity (cashflow-turnover rate and dynamic gearing ratio), and stability (investment intensity and investment coverage). The environmental dimension of sustainability encompasses the components of resource efficiency, effects on climate, nutrients, and ecotoxicity, as well as biodiversity and soil quality. 

Practicability, utility, acceptance

Practical testing of the indicator set is carried out in close cooperation with the involved farmers. The test determines the practicability, utility and acceptance of a sustainability assessment at farm level. In addition to the refinement of the indicator set, a scientific analysis of the results is planned. The project will be concluded with an in-depth report at the end of 2019. The results obtained are meant to contribute to the implementation of a practical solution for assessing sustainability on a large number of farms. The project is financially supported by the Migros Cooperative Association (MGB). IP-Suisse is actively involved in data acquisition.

Further information:

Publications Thomas Keller

Hiltebrand C., Keller T., Bachmann I., Doetterl S.
Changes in soil quality on horse paddock trails and the influence of paddock grids.
Soil Use and Management, 41, 2025, Article 70028.

Heller O., Chervet A., Durand-Maniclas F., Guillaume T., Häfner F., Müller M., Wittwer R., Keller T.
SoilManageR—An R package for deriving soil management indicators to harmonise agricultural practice assessments.
European Journal of Soil Science, 76, (2), 2025, Article 70102.

Deluz C., Deluz A., Keller T., Doetterl S., Boivin P.
Shrinkage analysis of repacked soil samples enables quantifying the soil's potential physical quality.
Soil Science Society of America Journal, 89, (2), 2025.

Sjulgård H., Graf L.V., Colombi T., Hirte J., Keller T., Aasen H.
Earth observation reveals reduced winter wheat growth and the importance of plant available water during drought.
Biogeosciences, 22, (5), 2025, 1341-1354.

Tschanz P., Albrecht M., Keller T.
Beyond pollination - The neglected contribution of ground-nesting bees to soil functions.
Basic and Applied Ecology, 84, 2025, 92-100.

Widmer A., Bulas T. M., Metzger K., Guillaume T., Fabian Y., Wüst C., Keller T., Hohl S., Looser F., Füglisthaler D.
Paddy rice production in Switzerland in 2022 and 2023.
Agroscope and Bern University of Applied Sciences. January, 2025, 50 pp.
other Languages: german | french

Leuther F., Iseskog D., Keller T., Larsbo M., Pandey B.K., Colombi T.
Root circumnutation reduces mechanical resistance to soil penetration.
Plant, Cell & Environment, 48, (2), 2025, 1608-1620.

Colombi T., Pandey B. K., Chawade A., Bennett M. J., Mooney S. J., Keller T.
Root plasticity versus elasticity: When are responses acclimative?
Trends in Plant Science, 29, (8), 2024, 856-864.

Torres L. C., Nemes A., ten Damme L., Keller T.
Current limitations and future research needs for predicting soil precompression stress: A synthesis of available data.
Soil and Tillage Research, 244, 2024, 1-13.

Tschanz P., Walter A., Keller T., Albrecht M.
A review of soil tillage impacts on ground-nesting wild bees: Mechanisms, implications, and future research perspectives.
Agriculture Ecosystems and Environment, 375, 2024, 1-15.

Romero Ruiz A., O'Leary D., Keller T.
Agrogeophysical modelling of managed grasslands.
In: Agriculture and geophysics: Illuminating the subsurface. 1 February, Zürich. 2024, 1.

Ten Damme L., Calleja-Huerta A., Munkholm L.J., Schjønning P., Keller T., Lamandé M.
Traction modifies the contact area and the vertical and horizontal stress distributions beneath the tyre.
Soil and Tillage Research, 244, 2024, 1-9.

Martínez I., Stettler M., Lorenz M., Brunotte J., Weisskopf P., Sommer M., Keller T.
Immediate effects of wheeling with agricultural machinery on topsoil gas transport properties and their anisotropy.
Soil and Tillage Research, 241, 2024, 1-6.

Heller O., Böning K., ten Damme L., Euteneuer P., Goberna M., Fér M., d'Hose T., Jarvis N., Köstel J. K., Lindahl A., Mehdi-Schulz B., Munkholm L.J., Santin I., Keller T.
Soil management impacts on soil structural properties in ten European long-term experiments.
In: EJP SOIL ASD. 11 June, Vilnius. 2024, 1-13.

Oliveira E. M., Wittwer R., Hartmann M., Keller T., Buchmann N., van der Heijden M.
Effects of conventional, organic and conservation agriculture on soil physical properties, root growth and microbial habitats in a long-term field experiment.
Geoderma, 447, 2024, Article 116927.

Heller O., Di Bene C., Nino P., Huyghebaert B., Arlauskienė A., Castanheira N. L., Higgins S., Horel A., Kir A., Kizeková M., Lacoste M., Munkholm L. J., O'Sullivan L., Radzikowski P., Rodríguez-Cruz M. S. and others
Towards enhanced adoption of soil‐improving management practices in Europe.
European Journal of Soil Science, 75, (2), 2024, 1-17.

Jarvis N., Coucheney E., Lewan E., Kloeffel T., Meurer K.H.E., Keller T., Larsbo M.
Interactions between soil structure dynamics, hydrological processes, and organic matter cycling: A new soil‐crop model.
European Journal of Soil Science, 75, (2), 2024, 1-24.

Arrázola-Vásquez E., Larsbo M., Capowiez Y., Taylor A., Herrmann A., Keller T.
Estimating energy costs of earthworm burrowing using calorimetry.
European Journal of Soil Biology, 121, 2024, 1-9.

Heller O., Schittli D., Bragazza L., Ghiasi S., Guillaume T., van der Heijden M., Köstel J. K., Mayer J., Wittwer R., Keller T.
Can we manage soil structure for improved resistance against droughts and extreme rainfall events?: Preliminary results from the SoilX Project.
In: BGS Tagung 2024. 21 March, Zollikofen. 2024, 1.

Garland G., Köstel J. K., Johannes A., Heller O., Doetterl S., Or D., Keller T.
Perspectives on the misconception of levitating soil aggregates.
Soil, 10, 2024, 23-31.

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