在全球干旱地区提供牧场和生态系统服务
Fernando T Maestre1,2, Yoann Le Bagousse-Pinguet3, Manuel Delgado-Baquerizo4,5
1Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef," Universidad de Alicante, Alicante, Spain.
概括
牧场对生态系统服务的影响在全球范围内各不相同. 牧场,气候,土壤和生物多样性之间的相互作用决定了结果,特别是在面临气候变化的干旱地区.
科学领域:
- 生态学
- 环境科学
- 土地使用科学
背景情况:
- 牧场是一种广泛的土地使用,对生态系统服务的影响不确定.
- 牧场压力,气候,土壤和生物多样性之间的相互作用是复杂的,而且往往没有得到解决.
研究的目的:
- 研究全球干旱地区的牧场压力,气候,土壤特性和生物多样性之间的同时相互作用.
主要方法:
- 在六大洲的98个不同地点进行了标准化调查.
- 收集的数据包括放牧压力,气候变量,土壤特性,生物多样性指标和生态系统服务指标.
主要成果:
- 牧场,气候,土壤和生物多样性之间的相互作用对于干旱地区的生态系统服务提供至关重要.
- 增加的牧场压力对温暖的干旱地区的生态系统服务产生了负面影响.
- 相反,在寒冷,物种丰富的干旱地区,放牧对生态系统服务产生了积极的影响.
结论:
- 对于干旱地区生态系统管理来说,了解放牧与当地非生物和生物因素的相互作用至关重要.
- 这些相互作用是预测干旱地区生态系统应对气候变化和日益增长的人类压力的关键.
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