Large-scale monoculture reduces honey yield: The case of soybean expansion in Argentina

Large-scale monoculture reduces honey yield: The case of soybean expansion in Argentina
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大规模单一种植降低了蜂蜜产量:阿根廷大豆扩张案例

DOI:
10.1016/j.agee.2020.107203
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发表时间:
2021
期刊:
Agriculture, Ecosystems & Environment
影响因子:
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通讯作者:
De Groot G
De Groot G
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作者:
De Groot G

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工业化农业带来的大规模变化可能会影响其他生产活动,例如养蜂业,养蜂业严重依赖花卉资源和负责任的农用化学品管理。为了评估大豆种植面积扩张对阿根廷蜂蜜产量的长期影响,我们评估了 1961 年至 2016 年间大豆种植面积和蜂蜜产量与受管理的蜜蜂 (Apis mellifera) 蜂巢总产量之间的关系。结果表明,自 1996 年以来大豆种植面积的扩大,包括用大片耕地取代自然栖息地、大量使用转基因种子、农用化学品和机械,与蜂蜜产量的减少有关收率~60%。此外,自1996年以来,大豆种植面积较大的年份,蜂蜜产量往往较低。该数据的因果模型证实,1996 年至 2016 年期间,增加大豆种植面积导致产量下降,从而对阿根廷蜂蜜生产产生了强烈的负面影响。尽管仍然需要理清潜在机制,但这项工作支持了阿根廷养蜂业危机可能与大豆扩张有关的假设。更一般地说,它提供了工业农业对养蜂业产生负面影响的证据。
Large-scale changes introduced by industrial agriculture can affect other productive activities such as beekeeping, which heavily depends on floral resources and responsible management of agrochemicals. To assess the long-term effect of soybean expansion on honey production in Argentina, we evaluated the relationships between the area cultivated with soybean and honey yield and total production by managed honeybee (Apis mellifera) hives between 1961 and 2016. Results indicate that the expansion of the area cultivated with soybean since 1996, which involved the replacement of natural habitats with extensive cultivated fields, intensive use of transgenic seeds, agrochemicals and machinery, was associated with a reduction in honey yield of ∼60 %. Furthermore, since 1996 honey yield tended to be lower in years in which the area cultivated with soybean was larger. Causal modelling of this data confirmed a strong negative effect of increasing soybean cultivation on Argentinean honey production via decreasing yield during the period 1996–2016. Although the underlying mechanisms still need to be disentangled, this work provides support to the hypothesis that the beekeeping crisis in Argentina can relate to soybean expansion. More generally, it provides evidence that industrial agriculture has a negative impact on apiculture.
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