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Research article - Peer-reviewed, 2022

Spatiotemporal patterns of crop diversity reveal potential for diversification in Swedish agriculture

Sjulgard, Hanna; Colombi, Tino; Keller, Thomas

Abstract

Increasing crop species diversity within a region could improve agricultural sustainability, but knowledge of the spatiotemporal variation of crop species diversity and how this is related to pedo-climatic conditions is limited. In the current study, we used historical crop data records to quantify how crop species diversity is related to pedo-climatic conditions, and how crop diversity developed over time at the national and regional scale in Sweden between 1965 and 2019. Crop diversity was quantified using the exponent of the Shannon index. We found spatial differences across the country, with a significant increase in crop diversity from the north to the south, showing that there is a strong natural control of latitude and associated mean annual temperature on crop diversity in Sweden. Mean annual precipitation and soil texture had no significant relationship with crop diversity across Sweden. At the national level, crop diversity had no significant change over time. At the county level, our analyses revealed different temporal trends between counties. Crop diversity increased over time in certain counties, while in others no change or a decrease occurred. The temporal changes could not be explained by climate trends, and were likely influenced by socioeconomic factors. However, more than half of the counties showed an increase in crop diversity, suggesting that it is possible to increase crop diversity in Sweden. Our study shows that both natural and socioeconomic factors need to be considered to achieve an increase in crop diversity in the future.

Keywords

Crop diversification; Agrobiodiversity; Crop production; Agriculture; Crop rotation

Published in

Agriculture, Ecosystems and Environment
2022, volume: 336, article number: 108046

Authors' information

Swedish University of Agricultural Sciences, Department of Soil and Environment
Swedish University of Agricultural Sciences, Department of Soil and Environment
Swedish University of Agricultural Sciences, Department of Soil and Environment
Agroscope

Sustainable Development Goals

SDG2 Zero hunger

UKÄ Subject classification

Soil Science

Publication Identifiers

DOI: https://doi.org/10.1016/j.agee.2022.108046

URI (permanent link to this page)

https://res.slu.se/id/publ/117362