Copper availability in specialty crops – Assessment of different extraction processes to predict the accumulation behaviour of earthworm conenoses at vineyard soils

Authors

  • Thomas Strumpf Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz, Berlin
  • Nadine Herwig Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz, Berlin
  • Ursula Stendel Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz, Berlin
  • Jörn Strassemeyer Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für Strategien und Folgenabschätzung, Kleinmachnow
  • Peter Horney Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für Strategien und Folgenabschätzung, Kleinmachnow
  • Dieter Felgentreu Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz, Berlin
  • Bernd Hommel Julius Kühn-Institut – Bundesforschungsinstitut für Kulturpflanzen, Institut für ökologische Chemie, Pflanzenanalytik und Vorratsschutz, Berlin

Keywords:

Copper, vineyard soils, copper loads, exposure, bioavailability to soil organisms, pathway soil/soil organisms, earthworm conenoses, extraction processes of VDLUFA, bio concentration factor, voluntary risk assessment

Abstract

The copper availability is directly related to the impact on the soil conenoses, making it a ‘key element' in the risk-benefit assessments by the regulatory authorities.

The experience of the longtime studies on the load distribution in the soil in general and the studies on the behaviour, fate, exposure and effects on soil organisms in particular, that a realistic risk assessment of soil total copper contents is only possible on the basis of bio available fractions and not as previously on the basis of total contents.

With obtained soil samples from conducted field studies of earthworm conenoses at 16 selected wine farms bio concentration factors of earthworm tissue were calcu­lated and linked with help of simple regression approaches of bio available copper values to test with which normalized soil extract (Cu Extract) the copper enrichment behaviour can best be predicted. With the extract with the closest correlation between content and copper accumulation in the tissues of the earthworm communities a model approach to enforcement relevant eco-toxicological evaluation should be developed for agricultural soil on the basis of the bio available fraction for risk assessment of the effects on soil organisms.

DOI: 10.5073/JfK.2015.11.01, https://doi.org/10.5073/JfK.2015.11.01

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Published

2015-11-01

Issue

Vol. 67 No. 11 (2015)

Section

Original Article

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