农业土地退休对农药使用的影响
Ashley E Larsen1, Amy Quandt2, Iris Foxfoot1
1Bren School of Environmental Science & Management, UC Santa Barbara, United States of America.
The Science of the total environment
|July 1, 2023
概括
农业土地的退休直接减少了农药的使用,但可以在附近活跃的田地稍微增加. 影响取决于地时间和植被覆盖,影响害虫和农药管理策略.
科学领域:
- 农业科学 农业科学
- 生态生态学 生态生态学
- 环境科学 环境科学
背景情况:
- 农业土地退休对生态系统来说既有风险,也有机遇.
- 退休的耕地可以影响农业害虫和农药分配.
- 土地退休对农业农药使用的影响仍未得到充分研究.
研究的目的:
- 量化土地退休后避免使用农药的数量.
- 评估周围的退役土地是否会在活跃的耕地上使用农药.
- 检查退休地块年龄和复植如何影响农药的使用.
主要方法:
- 结合的田间作物和农药数据 (超过20万个田间年观察,15年).
- 分析了美国加利福尼亚州克恩县的数据.
- 对作物,农民,地区和特定年份的因素进行控制.
主要成果:
- 每年大约有10万公的农田退役,避免了13-30万公斤的农药活性成分.
- 附近退役土地的10%增加与活跃土地上农药使用的0.6%增加有关.
- 连续置的持续时间会放大效应,但通过重新植被而减少.
结论:
- 土地退休改变了农药分配模式.
- 考虑到年龄和复植的退役土地的管理对于综合性害虫管理至关重要.
- 调查结果为平衡保护和农业生产力的战略提供了信息.
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