景观构成对害虫防治和作物产量的重要性:全球定量综合
Katja Poveda1, Daniel S Karp2, Rebecca Chaplin-Kramer3
1Department of Entomology, Cornell University, Ithaca, New York, USA.
Ecology letters
|November 9, 2025
概括
景观组成通过影响害虫和自然敌人影响作物产量. 在较大的规模中整合自然息地可以提高产量,而较小的规模可能会降低产量,这表明可持续农业的平衡方法.
科学领域:
- 生态生态学 生态生态学
- 农业科学 农业科学
- 保护生物学 保护生物学
背景情况:
- 由农业驱动的土地利用变化减少了生物多样性和生态系统服务.
- 景观组成,害虫管理和作物产量之间的关系尚未完全理解.
研究的目的:
- 研究景观构成如何影响害虫防治和作物产量.
- 测试自然敌人,资源集中和农业质量假设.
主要方法:
- 采用全球结构方程模型,综合了来自28个国家的116项研究的数据.
- 该模型分析了景观构成通过作物,草食动物和自然敌人的特征对产量的直接和间接影响.
主要成果:
- 景观组成通过各种途径显著影响作物产量.
- 在更大的尺度上 (约. 1250m),自然息地增加了产量.
- 在较小的尺度上 (约. 250m),自然息地增加与产量下降相关,可能是由于农业质量降低或边缘效应.
结论:
- 优化景观构成可以增强可持续农业生产.
- 在更大规模利用自然息地,同时在更小规模管理它们的影响至关重要.
- 结果为平衡生物多样性保护和农业生产率提供了见解.
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