TY - JOUR
T1 - The role of leaf litter as a protective barrier for copper-containing pesticides in orchard soils
AU - Schoffer, Jorge Tomás
AU - Antilén, Mónica
AU - NEAMAN, ALEXANDER
AU - Díaz, María Francisca
AU - de la Fuente, Luz María
AU - Urdiales, Cristian
AU - Ginocchio, Rosanna
N1 - Funding Information:
Financial support was obtained from ANID Doctoral Grant (21160236/2016), Center of Applied Ecology and Sustainability (CAPES) by ANID PIA/BASAL FB0002 and Facultad de Agronomía e Ingeniería Forestal, PUC.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2021
Y1 - 2021
N2 - This study assessed the capacity of leaf litters to adsorb copper ions applied as a copper-based pesticide. Leaf litters of two fruit tree species with different lignin/N ratios were examined to determine their protective role against the incorporation of Cu into soil. A leaf litter Cu-adsorption capacity assay and a degradation assay were performed using table grape (lignin/N = 2.35) and kiwi (lignin/N = 10.85) leaf litters. Table grape leaf litter had a significantly (p = 0.001) higher Cu-adsorption capacity (15,800 mg kg−1) than kiwi leaf litter (14,283 mg kg−1). Following leaf litter degradation, significant differences (p = 0.011) were observed in the release of Cu from Cu-enriched leaf litter into soil, showing that kiwi litter has a greater protective effect against the incorporation of Cu into soil, regardless of the amount of Cu applied. This protective role is reflected in a significantly higher (p = 0.015) Cu concentration in table grape soil (41.71 ± 2.14 mg kg−1) than in kiwi soil (35.87 ± 0.69 mg kg−1). Therefore, leaf litter with higher lignin/N ratio has greater protective role against copper incorporation into soil.
AB - This study assessed the capacity of leaf litters to adsorb copper ions applied as a copper-based pesticide. Leaf litters of two fruit tree species with different lignin/N ratios were examined to determine their protective role against the incorporation of Cu into soil. A leaf litter Cu-adsorption capacity assay and a degradation assay were performed using table grape (lignin/N = 2.35) and kiwi (lignin/N = 10.85) leaf litters. Table grape leaf litter had a significantly (p = 0.001) higher Cu-adsorption capacity (15,800 mg kg−1) than kiwi leaf litter (14,283 mg kg−1). Following leaf litter degradation, significant differences (p = 0.011) were observed in the release of Cu from Cu-enriched leaf litter into soil, showing that kiwi litter has a greater protective effect against the incorporation of Cu into soil, regardless of the amount of Cu applied. This protective role is reflected in a significantly higher (p = 0.015) Cu concentration in table grape soil (41.71 ± 2.14 mg kg−1) than in kiwi soil (35.87 ± 0.69 mg kg−1). Therefore, leaf litter with higher lignin/N ratio has greater protective role against copper incorporation into soil.
KW - Degradation
KW - Lignin
KW - Metals
KW - Microbial activity
KW - Orchards
KW - Pesticides
UR - http://www.scopus.com/inward/record.url?scp=85108603304&partnerID=8YFLogxK
U2 - 10.1007/s11356-021-15035-6
DO - 10.1007/s11356-021-15035-6
M3 - Article
AN - SCOPUS:85108603304
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
SN - 0944-1344
ER -