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在中原实验区的LTAR牧场共同实验:协作适应性牧场管理

David J Augustine¹, Justin D Derner², Lauren M Porensky¹

¹USDA-ARS, Rangeland Resources and Systems Research Unit, Fort Collins, Colorado, USA.

Journal of environmental quality

|July 22, 2024

概括

采用自适应多 (AMP) 放牧的协作适应性牧场管理 (CARM) 改善了草原鸟类息地,但与传统牧场管理 (TRM) 相比,减少了牛头体重增加. 进一步的研究正在进行中.

科学领域:

牧场生态牧场生态
保护生物学保护生物学
畜牧业管理畜牧管理

背景情况:

半干旱的牧场对于牲畜和生态系统服务至关重要.
对生态系统服务的适应性多牧场 (AMP) 放牧的有效性尚未完全理解.
传统牧场管理 (TRM) 涉及整个季节的放牧.

研究的目的:

为了比较协作适应性牧场管理 (CARM),结合AMP原则,与TRM.
评估CARM对植被,牲畜生产和野生动物息地的影响.
了解影响牧场管理的生态和社会过程.

主要方法:

在科罗拉多州的中央平原实验场进行了为期5年的实地实验.
130公的配对牧场比较了CARM (有计划休息的AMP放牧) 和TRM.
监测植被组成和生长,牛体重增加和草原鸟类息地.

主要成果:

CARM增强了景观植被结构的异质性,使两种草原鸟类物种受益.
与TRM相比,CARM导致转重量增加12%-16%较低.
在CARM和TRM两种治疗中,三分之一的保护关注的鸟类种群的数量下降.

结论:

虽然CARM显示了改善草原鸟类息地的潜力,但在畜牧业生产方面存在经济上的权衡.
了解生态和社会动态对于适应性牧场管理至关重要.
技术和分析方面的创新正在整合,以完善CARM战略.

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