Journal article
Effects of herbicides and mulch on the soil carbon, nitrogen, and microbial composition of two revegetated riparian zones over 3 years
N Omidvar, SM Ogbourne, Z Xu, J Burton, R Ford, B Salehin, I Tahmasbian, R Michael, R Wilson, SH Bai
Journal of Soils and Sediments | SPRINGER HEIDELBERG | Published : 2023
Open access
Abstract
Purpose: Revegetation of riparian zones is important to improve their soil nitrogen (N) dynamics and to preserve their microbial compositions. However, the success of revegetation projects currently depends on weed control to reduce non-target vegetation competing over nutrients and to ensure the target plant species growth and survival. Different weed control methods affect soil microbial composition and N cycling. However, the long-term effects of herbicides on soil nitrogen (N) pools and microbial community composition remain uncertain even after cessation of the herbicide application. Materials and methods: This study compared the impacts of different herbicides (Roundup®, BioWeed™, Slas..
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Funding Acknowledgements
We acknowledge the assistance of the University of the Sunshine Coast, Griffith University, the Chemistry Centre, and Soil, Catchment and Riverine Processes Group, Department of Environment and Science. We also acknowledge the Mary River Catchment Coordinating Committee (MRCCC) and Australian Government Clean Energy Future package project for funding the project. We appreciate the support received from the landholders, J and C Smith, for providing access to the project site, Noosa District Landcare group for the application of treatments in this project and BOS Rural for advice on choosing organic herbicides. We are also grateful to Ms. Roya Esmaeilani and Dr. Trong Tran for their kind assistance with the fieldwork.