Soil Bacterial Community Responds to Land-Use Change in Riparian Ecosystems
| Autor: | Fiona Ede, Rebecca E. Miller, Cristina Aponte, Andrew Bissett, Sabine Kasel, Vicky Waymouth |
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| Přispěvatelé: | Holsworth Wildlife Research Endowment, Ecological Society of Australia Incorporated, Australian Government, Waymouth, Vicky [0000-0001-9347-9804], Kasel, Sabine [0000-0001-8188-1089], Ede, Fiona [0000-0003-4553-7314], Bissett, Andrew [0000-0001-7396-1484], Aponte, Cristina [0000-0002-8457-7573], Waymouth, Vicky, Kasel, Sabine, Ede, Fiona, Bissett, Andrew, Aponte, Cristina |
| Rok vydání: | 2021 |
| Předmět: |
Microbial diversity
Soil texture complex mixtures bacterial community composition Revegetation 03 medical and health sciences Community‐level physiological profiles soil microbiome Bacterial community composition Riparian forest plant-soil interactions Riparian ecosystems 030304 developmental biology Riparian zone Soil microbiome 0303 health sciences geography geography.geographical_feature_category community-level physiological profiles Ecology plant - soil interactions Plant‐soil interactions Forestry lcsh:QK900-989 04 agricultural and veterinary sciences Vegetation Soil carbon Ecoplates riparian ecosystems microbial diversity EcoPlates Restoration Soil water lcsh:Plant ecology 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science revegetation Soil fertility |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Forests, Vol 12, Iss 157, p 157 (2021) Forests Volume 12 Issue 2 |
| ISSN: | 1999-4907 |
| DOI: | 10.3390/f12020157 |
| Popis: | Departamento de Medio Ambiente y Agronomía (INIA) Riparian forests were frequently cleared and converted to agricultural pastures, but in recent times these pastures are often revegetated in an effort to return riparian forest structure and function. We tested if there is a change in the soil bacterial taxonomy and function in areas of riparian forest cleared for agricultural pasture then revegetated, and if soil bacterial taxonomy and function is related to vegetation and soil physicochemical properties. The study was conducted in six riparian areas in south‐eastern Australia, each comprising of three land‐use types: remnant riparian forest, cleared forest converted to pasture, and revegetated pastures. We surveyed three strata of vegetation and sampled surface soil and subsoil to characterize physicochemical properties. Taxonomic and functional composition of soil bacterial communities were assessed using 16S rRNA gene sequences and community level physiological profiles, respectively. Few soil physiochemical properties differed with land use despite distinct vegetation in pasture relative to remnant and revegetated areas. Overall bacterial taxonomic and functional composition of remnant forest and revegetated soils were distinct from pasture soil. Land‐use differences were not consistent for all bacterial phyla, as Acidobacteria were more abundant in remnant soils; conversely, Actinobacteria were more abundant in pasture soils. Overall, bacterial metabolic activity and soil carbon and nitrogen content decreased with soil depth, while bacterial metabolic diversity and evenness increased with soil depth. Soil bacterial taxonomic composition was related to soil texture and soil fertility, but functional composition was only related to soil texture. Our results suggest that the conversion of riparian forests to pasture is associated with significant changes in the soil bacterial community, and that revegetation contributes to reversing such changes. Nevertheless, the observed changes in bacterial community composition (taxonomic and functional) were not directly related to changes in vegetation but were more closely related to soil attributes. This research was funded by Holsworth Wildlife Research Endowment from the Ecological Society of Australia, Melbourne Water, and the Madeleine Selwyn Smith Memorial Scholarship. Vicky Waymouth was a recipient of a Research Training Program Scholarship. Cybec Foundation supported Rebecca Miller during her lectureship at Melbourne University. We would like to acknowledge the contributions of the Biomes of Australian Soil Environments (BASE) and Australian Microbiome consortiums to the generation of genetic data for this study. The Australian Microbiome initiative is supported by funding from Bioplatforms Australia and the Integrated Marine Observing System (IMOS) through the Australian Government’s National Collaborative Research Infrastructure Strategy (NCRIS), Parks Australia through the Bush Blitz program funded by the Australian Government and BHP, and CSIRO. Soil collection and field sampling was conducted under Parks Victoria permit number 10008494. 24 Pág. This article belongs to the Special Issue Restoring Forest Landscapes: Impact on Soil Properties and Functions |
| Databáze: | OpenAIRE |
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