Changes in Soil Quality of an Urban Wetland as a Result of Anthropogenic Disturbance

John Clunes, Susana Valle, Jose Dörner, Marco Campos, Jorge Medina, Sarah Zuern and Lorena Lagos
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John Clunes: Facultad de Ciencias Agrarias y Alimentarias, Instituto de Ingeniería Agraria y Suelos, Campus Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile
Susana Valle: Facultad de Ciencias Agrarias y Alimentarias, Instituto de Ingeniería Agraria y Suelos, Campus Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile
Jose Dörner: Facultad de Ciencias Agrarias y Alimentarias, Instituto de Ingeniería Agraria y Suelos, Campus Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile
Marco Campos: Laboratorio de Ecología Microbiana Aplicada (EMAlab), Universidad de La Frontera (UFRO), Temuco 4780000, Chile
Jorge Medina: Instituto de Ciencias Agroalimentarias, Animales y Ambientales, Campus Colchagua, Universidad de O’Higgins, San Fernando 3070000, Chile
Sarah Zuern: Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Campus Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile
Lorena Lagos: Facultad de Ciencias Agrarias y Alimentarias, Instituto de Ingeniería Agraria y Suelos, Campus Isla Teja, Universidad Austral de Chile, Valdivia 5090000, Chile

Land, 2022, vol. 11, issue 3, 1-18

Abstract: Urban wetland soil provides ecosystem services (ES) through their functions. Changes in soil properties due to anthropogenic disturbances lead to a loss of soil quality. The aim of this research was to evaluate the effect of nearby anthropic disturbance on the chemical, physical and biological properties of the urban wetland soil. Soil samples were collected from four sites (P1, P2, P3 and P4) located in the Angachilla urban wetland, Chile, according to the magnitude of anthropogenic disturbance. An assessment of the physical and chemical properties of the soil profile was carried out in two sites, P1 and P4. Additionally, chemical and biological properties of the soil were evaluated in the four sites selected. Results from the soil profiles showed that Hz1 of P4 had a higher levels of soil fertility as a result of low anthropogenic disturbance in contrast to Hz1 of P1 ( p < 0.05). Relevant differences among sites were observed for P-Olsen, pH NaF, nosZ gene, Nitrate and Na (PC1: 50.5%). Composition of the soil bacterial community in P1 and P4 showed higher richness and diversity. Anthropogenic disturbance on the urban wetland soil leads to a loss of the soil’s organic horizon, as well as its soil quality and, subsequently, its capacity to provide ES through its functions.

Keywords: urban wetland; anthropogenic disturbance; soil properties (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
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