Bryony K. Willcox, Michael P. D. Garratt, Tom D. Breeze, Natarajan Mathimaran, Simon G. Potts, Girija Prasad, Rengalakshmi Raj, Deepa Senapathi
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引用次数: 0
摘要
生态集约化（EI）为实现更可持续的农业系统提供了一条重要的途径，并被越来越多地采用。然而，农场生态集约实践的实施和成功与否可能因景观环境和当地管理实践的不同而有所差异。我们评估了 EI 干预措施（包括两种不同的农业投入制度（大量或少量使用合成杀虫剂和化肥）以及花卉边境作物）如何影响当地天敌生物多样性、害虫丰度和作物产量，以及这些因素如何受到印度普杜切里小农农场 12 块稻田周围景观环境的影响。减少农业投入对整体天敌组合产生了积极影响；然而，对景观因素的反应却各不相同。例如，茧甲虫与较高密度的田边（景观配置）呈负相关。相比之下，蜘蛛是调查中数量最多的一类害虫，但并没有受到任何景观指标的显著影响。此外，害虫丰度在投入减少的田块中最高，但仅存在于没有花卉边际作物的地点。与高投入地相比，低投入地的平均稻谷产量较低，花卉边际作物对高投入地和低投入地的影响相反。在低投入地，有花境作物的地方平均产量要高出 33%。而在高投入地区，花境作物的存在与较低的平均产量（16%）相关。这些研究结果表明，生态集约化实践可为小农作物系统带来益处，但同时也强调，在制定有效的可持续管理实践时，需要考虑地貌环境和当地管理实践的差异。
期刊介绍：
Agricultural and Forest Entomology provides a multi-disciplinary and international forum in which researchers can present their work on all aspects of agricultural and forest entomology to other researchers, policy makers and professionals.
The Journal welcomes primary research papers, reviews and short communications on entomological research relevant to the control of insect and other arthropod pests. We invite high quality original research papers on the biology, population dynamics, impact and management of pests of the full range of forest, agricultural and horticultural crops.
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