Measuring the accuracy of agro-environmental indicators

Journal of Environmental Management
D MakowskiNicolas Beaudoin

Abstract

Numerous agro-environmental indicators have been developed by agronomists and ecologists during the last 20 years to assess the environmental impact of farmers' practices, and to monitor effects of agro-environmental policies. The objectives of this paper were (i) to measure the accuracy of a wide range of agro-environmental indicators from experimental data and (ii) to discuss the value of different information typically used by these indicators, i.e. information on farmers' practices, and on plant and soil characteristics. Four series of indicators were considered in this paper: indicators of habitat quality for grassland bird species, indicators of risk of disease in oilseed rape crops, indicators of risk of pollution by nitrogen fertilizer, and indicators of weed infestation. Several datasets were used to measure their accuracy in cultivated plots and in grasslands. The sensitivity, specificity, and probability of correctly ranking plots were estimated for each indicator. Our results showed that the indicators had widely varying levels of accuracy. Some show very poor performance and had no discriminatory ability. Other indicators were informative and performed better than random decisions. Among the tested indicators, the ...Continue Reading

References

Jun 3, 1988·Science·J A Swets
Jan 18, 2005·Science·Andrew BalmfordBruno A Walther
Apr 9, 2005·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Richard D GregoryDavid W Gibbons

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Citations

Jul 14, 2009·Journal of Environmental Management·R De JongC A Campbell
Jun 13, 2012·Pest Management Science·Hilde WustenberghsPieter Spanoghe
May 12, 2017·Animal : an International Journal of Animal Bioscience·J RyschawyM Tichit
Mar 5, 2019·Animal : an International Journal of Animal Bioscience·J RyschawyM Duru
Mar 13, 2020·PloS One·Mathilde ChenDavid Makowski

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