This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Summary Large areas of rainforests in Australia and other tropical regions have been extensively cleared since the mid‐19th century. As abandoned agro‐pastoral land becomes increasingly prominent, there is an ongoing need to identify cost‐effective approaches to reinstate forest on these landscapes. Assisted regeneration is a potentially lower cost restoration approach which aims to accelerate forest recovery by removing barriers to natural regeneration. However, despite being widely used its ecological benefits are poorly quantified, particularly on long cleared and grazed land. This study quantified the benefits of assisted regeneration on previously cleared land in a subtropical rainforest ecosystem within eastern Australia. Three different site types were used (grazed, grazing excluded and grazing excluded plus assisted regeneration, each with a maximum distance of 120 m to remnant forest) to compare forest recovery up to 10 years after grazing was relieved with and without 4–6 years of assisted regeneration. Assisted regeneration sites showed a threefold increase in canopy cover, fourfold increase in native tree and shrub species richness and over 40 times greater native stem density compared to nonassisted regeneration sites. Stimulation of native recruitment appears dependent on the simultaneous removal of multiple barriers to regeneration, with the exclusion of grazing alone insufficient. This demonstrates the additional ecological benefits arising from investment in assisted regeneration. It offers considerable promise as a cost‐effective tool for accelerating and improving reinstatement of forest on retired agro‐pastoral land in the humid subtropics.
1. Natural soundscapes experienced in parks are increasingly recognised as a valuable ecosystem service, yet urban parks soundscapes also commonly contain anthropogenic noise.2. While studies show bird calls can promote psychological restoration, the factors that might influence actual experiences of these sounds by individuals in urban parks are less clear. Equally, continual exposure to anthropogenic noise, such as vehicle traffic, is associated with negative health outcomes, but determinants influencing negative experiences of such sounds within a park soundscape are poorly understood.3. To address this gap we used an ex situ survey of over 4000 Australian residents and examined a range of spatial and social factors in influencing perceptions towards noticing and pleasantness of bird sounds and traffic noise within urban parks.4. The results indicate older age, recent park use, and valuing parks for uses such as exercising, socialising and to hear nature, were positively associated with pleasant bird sound experiences in parks. For traffic sounds, we found indicators of disadvantage, such as renting a home were associated with a higher likelihood of unpleasant experiences of traffic noise within parks. Notably, individuals using parks for social activities were still positively associated with pleasant bird sound experiences and less likely to perceive traffic sounds as unpleasant. Conversely, whilst those with greater nature-relatedness had a strong positive association with pleasant bird sound experiences, they were more likely to perceive traffic as unpleasant.5. Overall, these findings suggest that whilst many types of park users can potentially experience the beneficial effects from bird sounds, the detrimental effects of traffic noise may constrain these benefits in certain social groups, particularly those of greater socio-economic disadvantage. We discuss strategies to promote greater equity of therapeutic experiences of bird sounds in parks, whilst outlining traffic mitigation measures within urban parks.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.