Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.

Edge effects resulting from adjacent land uses are poorly understood in agroecosystems yet understanding above and belowground edge effects is crucial for maintaining ecosystem function. The aim of our study was to examine impacts of land management on aboveground and belowground edge effects, measu...

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Main Authors: Mariah Aguiar, Alexandra J Conway, Jennifer K Bell, Katherine J Stewart
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0283832
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author Mariah Aguiar
Alexandra J Conway
Jennifer K Bell
Katherine J Stewart
author_facet Mariah Aguiar
Alexandra J Conway
Jennifer K Bell
Katherine J Stewart
author_sort Mariah Aguiar
collection DOAJ
description Edge effects resulting from adjacent land uses are poorly understood in agroecosystems yet understanding above and belowground edge effects is crucial for maintaining ecosystem function. The aim of our study was to examine impacts of land management on aboveground and belowground edge effects, measured by changes in plant community, soil properties, and soil microbial communities across agroecosystem edges. We measured plant composition and biomass, soil properties (total carbon, total nitrogen, pH, nitrate, and ammonium), and soil fungal and bacterial community composition across perennial grassland-annual cropland edges. Edge effects due to land management were detected both aboveground and belowground. The plant community at the edge was distinct from the adjacent land uses, where annual, non-native, plant species were abundant. Soil total nitrogen and carbon significantly decreased across the edge (P < 0.001), with the highest values in the perennial grasslands. Both bacterial and fungal communities were different across the edge with clear changes in fungal communities driven directly and indirectly by land management. A higher abundance of pathogens in the more heavily managed land uses (i.e. crop and edge) was detected. Changes in plant community composition, along with soil carbon and nitrogen also influenced the soil fungal community across these agroecosystems edges. Characterizing edge effects in agroecosystem, especially those associated with soil microbial communities, is an important first step in ensuring soil health and resilience in these managed landscapes.
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spelling doaj.art-79fc1dc5a21b4a6e9a7b939201a7acf72023-04-21T05:32:24ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01184e028383210.1371/journal.pone.0283832Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.Mariah AguiarAlexandra J ConwayJennifer K BellKatherine J StewartEdge effects resulting from adjacent land uses are poorly understood in agroecosystems yet understanding above and belowground edge effects is crucial for maintaining ecosystem function. The aim of our study was to examine impacts of land management on aboveground and belowground edge effects, measured by changes in plant community, soil properties, and soil microbial communities across agroecosystem edges. We measured plant composition and biomass, soil properties (total carbon, total nitrogen, pH, nitrate, and ammonium), and soil fungal and bacterial community composition across perennial grassland-annual cropland edges. Edge effects due to land management were detected both aboveground and belowground. The plant community at the edge was distinct from the adjacent land uses, where annual, non-native, plant species were abundant. Soil total nitrogen and carbon significantly decreased across the edge (P < 0.001), with the highest values in the perennial grasslands. Both bacterial and fungal communities were different across the edge with clear changes in fungal communities driven directly and indirectly by land management. A higher abundance of pathogens in the more heavily managed land uses (i.e. crop and edge) was detected. Changes in plant community composition, along with soil carbon and nitrogen also influenced the soil fungal community across these agroecosystems edges. Characterizing edge effects in agroecosystem, especially those associated with soil microbial communities, is an important first step in ensuring soil health and resilience in these managed landscapes.https://doi.org/10.1371/journal.pone.0283832
spellingShingle Mariah Aguiar
Alexandra J Conway
Jennifer K Bell
Katherine J Stewart
Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.
PLoS ONE
title Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.
title_full Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.
title_fullStr Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.
title_full_unstemmed Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.
title_short Agroecosystem edge effects on vegetation, soil properties, and the soil microbial community in the Canadian prairie.
title_sort agroecosystem edge effects on vegetation soil properties and the soil microbial community in the canadian prairie
url https://doi.org/10.1371/journal.pone.0283832
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