景观简单性对作物产量的影响:对全球数据库的重新分析
Michael Biwalib Madin1, Katherine S Nelson1
1Department of Geography and Geospatial Sciences, Kansas State University, Manhattan, Kansas, United States of America.
PloS one
|December 14, 2023
概括
简化农业景观减少了诸如授粉和害虫防治等生态系统服务,对作物产量产生了负面影响. 在这种关系中,管理和土壤健康也起着至关重要的作用.
科学领域:
- 农业生态 农业生态学
- 生态系统服务生态系统服务
- 生物多样性和作物生产
背景情况:
- 生态理论强调生物多样性和生态系统服务,以实现可持续农业.
- 以前的研究强调了景观多样性,生态系统服务和作物产量之间的联系.
- 2019年的一项有影响力的研究综合了这些关系的全球数据.
研究的目的:
- 重新分析关于景观多样性,生态系统服务和作物产量的全球数据集.
- 使用不同的统计方法 (普通最小平方回归) 测试先前发现的稳定性.
- 调查管理和土壤健康的调解作用.
主要方法:
- 重新分析来自Dainese等人公开可用的数据集. (2019年) 的时间.
- 应用普通最小平方回归模型.
- 检查现场规模的景观多样性-生态系统服务-作物产量关系.
主要成果:
- 这些发现支持了最初的研究:增加的景观简单性与减少的授粉和害虫防治服务以及较低的作物产量相关.
- 授粉和害虫防治服务只解释了景观简单性对产量总影响的很小一部分.
- 管理和土壤健康似乎调节了景观简单性对生态系统服务和作物产量的影响.
结论:
- 景观简单性-生态系统服务-作物产量关系的稳定性得到证实.
- 在地面和地下的生态系统服务同时支持农业生产.
- 管理和土壤健康是影响农业系统中这些关系的关键因素.
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