Copper content in soils and litter from fruit orchards in Central Chile and its relationship with soil microbial activity

TitleCopper content in soils and litter from fruit orchards in Central Chile and its relationship with soil microbial activity
Publication TypeJournal Article
Year of Publication2022
AuthorsSchoffer J.T, Aponte H., Neaman A., De la Fuente L.M, Arellano E.C, Gil P.M, Ginocchio R.
JournalPlant Soil and Environment
Volume68
Pagination115-128
Type of ArticleArticle
ISBN Number1214-1178
Accession NumberWOS:000754380700001
KeywordsAgriculture, BIOAVAILABILITY, bioindicator, contamination, cu, metals, MICRORESP(TM)
Abstract

This study assessed both the soil and litter copper (Cu) levels and their relationships with soil microbial activity, in fruit-tree production areas of central Chile where Cu-based pesticides are intensively sprayed. Samples of soil (0-20 cm depth) and litter from a number of selected orchards (kiwi, table grape, plum, and cherry) were collected and analysed for their Cu content and C-induced soil microbial activity. Results showed that the mean total soil Cu level was 225 mg/kg and soluble soil Cu was less than 0.01% of total soil Cu, as expected from pH values of study soils (range of 6.33 to 7.93). However, leaf litter Cu content was 3-7 times higher than in soil (mean of 681 mg/kg). Despite the soil and leaf litter Cu concentrations, no effect was observed on the C-induced soil microbial activity. We conclude that leaf litter exerts a protective role, preventing the entry of Cu into the soil and thus soil microbial toxicity.

Short TitlePlant Soil Environ.Plant Soil Environ.
Alternate JournalPlant Soil Environ.
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Cited Reference Count: 29
Tomas Schoffer, J. Aponte, Humberto Neaman, Alexander Maria De la Fuente, Luz Arellano, Eduardo C. Gil, Pilar M. Ginocchio, Rosanna
Aponte, Humberto/E-6254-2017
Aponte, Humberto/0000-0003-2218-4712; Schoffer, J. Tomas/0000-0003-3770-2455
Center of Applied Ecology and Sustainability (CAPES) by ANID PIA/BASAL [FB0002]; Facultad de Agronomia e Ingenieria Forestal PUC [21160236/2016]
Supported by the Center of Applied Ecology and Sustainability (CAPES) by ANID PIA/BASAL FB0002 and by the Facultad de Agronomia e Ingenieria Forestal PUC, Project No. 21160236/2016.

3
Czech academy agricultural sciences
Prague
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