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Insights on the relationship between total grazing pressure management and sustainable land management: key indicators to verify impacts
Rangeland Journal ( IF 1.2 ) Pub Date : 2020-03-24 , DOI: 10.1071/rj19078
C. M. Waters , S. E. McDonald , J. Reseigh , R. Grant , D. G. Burnside

Demonstrating sustainable land management (SLM) requires an understanding of the linkages between grazing management and environmental stewardship. Grazing management practices that incorporate strategic periods of rest are promoted internationally as best practice. However, spatial and temporal trends in unmanaged feral (goat) and native (kangaroo) populations in the southern Australian rangelands can result land managers having, at times, control over less than half the grazing pressure, precluding the ability to rest pastures. Few empirical studies have examined the impacts of total grazing pressure (TGP) on biodiversity and resource condition, while the inability to manage grazing intensity at critical times may result in negative impacts on ground cover, changes in pasture species composition, increased rates of soil loss and reduce the ability for soils to store carbon. The widespread adoption of TGP control through exclusion fencing in the southern Australian rangelands has created unprecedented opportunities to manage total grazing pressure, although there is little direct evidence that this infrastructure leads to more sustainable land management. Here we identify several key indicators that are either outcome- or activity-based that could serve as a basis for verification of the impacts of TGP management. Since TGP is the basic determinant of the impact of herbivory on vegetation it follows that the ability for rangeland pastoral management to demonstrate SLM and environmental stewardship will rely on using evidence-based indicators to support environmental social licence to operate.



中文翻译:

关于总放牧压力管理与可持续土地管理之间关系的见解:验证影响的关键指标

示范可持续土地管理(SLM)需要了解放牧管理与环境管理之间的联系。在国际上推广具有战略性休息时间的放牧管理实践为最佳实践。但是,澳大利亚南部牧场的未管理的野生(山羊)和本地(袋鼠)种群的时空趋势可能导致土地管理者有时控制着不到一半的放牧压力,这排除了牧场休息的能力。很少有经验研究检查总放牧压力(TGP)对生物多样性和资源状况的影响,而在关键时刻无法管理放牧强度可能会对地面覆盖,牧场物种组成的变化产生负面影响,增加土壤流失率并降低土壤储存碳的能力。尽管很少有直接证据表明这种基础设施能够带来更可持续的土地管理,但在澳大利亚南部牧场中,隔离栅栏广泛采用的三峡工程控制已创造了前所未有的机会来管理总放牧压力。在这里,我们确定了一些基于结果或活动的关键指标,这些指标可作为验证三峡工程管理的影响的基础。由于三峡工程是草食性对植被影响的基本决定因素,因此,牧场管理能够证明可持续土地管理和环境管理的能力将取决于使用循证指标来支持环境社会经营许可。尽管很少有直接证据表明这种基础设施能够带来更可持续的土地管理,但在澳大利亚南部牧场中,隔离栅栏广泛采用的三峡工程控制已创造了前所未有的机会来管理总放牧压力。在这里,我们确定了一些基于结果或活动的关键指标,这些指标可作为验证三峡工程管理的影响的基础。由于三峡工程是草食性对植被影响的基本决定因素,因此,牧场管理能够证明可持续土地管理和环境管理的能力将取决于使用循证指标来支持环境社会经营许可。尽管很少有直接证据表明这种基础设施能够带来更可持续的土地管理,但在澳大利亚南部牧场中,隔离栅栏广泛采用的三峡工程控制已创造了前所未有的机会来管理总放牧压力。在这里,我们确定了一些基于结果或活动的关键指标,这些指标可作为验证三峡工程管理的影响的基础。由于三峡工程是草食性对植被影响的基本决定因素,因此,牧场管理显示SLM和环境管理的能力将取决于使用循证指标来支持环境社会经营许可。

更新日期:2020-03-24
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