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Herd effect and deep ripping to restore claypans in western New South Wales rangelands
Author
McDonald, SE
Finlayson, G
Orgill, SE
Strong, C
Andersson, K
Publisher
XII International Rangeland Congress
Publication Year
2025
Body

Historic soil degradation, primarily due to overgrazing and drought, has led to the widespread formation of bare, scalded 'claypans' throughout the rangelands of south-eastern Australia. Mechanical interventions such as ripping and water ponding have been used to restore claypans over the last ~70 years, with varying success. Strategic management of livestock to restore degraded land has increasingly gained attention in recent decades as an alternative to resource-intensive mechanical restoration methods or complete destocking. This study compared the effects of intense cattle impact (~400-600 cattle held overnight on 0.5 ha of claypan + hay) with deep ripping (a single tine, to 30 cm depth with one meter row spacings) across three replicate claypans on 'Bokhara Plains' in the semi-arid rangelands of western New South Wales (NSW), Australia. Two years following the interventions, results show a significant increase in plant cover (up to 50%) and diversity for both the cattle and ripping treatments, compared to the control (initially 0% cover), and a reduction in salinity of the upper soil profile. Differences in vegetation cover between the cattle and ripping treatments were less obvious, though there were differences in plant composition with higher species richness under the cattle treatments at some replicates. These results demonstrate the effectiveness and need for targeted management to restore scalded areas and regenerate land condition in rangeland grazing systems.

Language
English
Resource Type
Text
Document Type
Conference Proceedings
Additional Information
This paper is part of the larger XII International Rangelands Congress Proceedings. Page Numbers: 753-757. Theme: Theme 4 / Can herbivores be part of the solution? Grazing management for rangeland restoration
ISSN
978-0-646-72121-7
Conference Name
International Rangeland Congress
Collection
International Rangelands Congress
Keywords
Grazing management
herd effect
ripping
animal impact
rangeland restoration