Crop genetic diversity benefits farmland biodiversity in cultivated fields
Crop genetic diversity benefits farmland biodiversity in cultivated fields
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DOI：
10.1016/j.agee.2013.03.004
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发表时间：
2013-05-01
影响因子：
6.6
通讯作者：
Porcher, Emmanuelle
中科院分区：
文献类型：
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作者：
Chateil, Carole;Goldringer, Isabelle;Porcher, Emmanuelle
本研究采用实验方法，对遗传同质小麦品种与品种混合物中的节肢动物和野生植物多样性进行比较，测试了增加作物遗传多样性是否有利于面包小麦田的农田生物多样性。野生植物物种的多样性不受作物遗传多样性的影响。然而，我们首次证明了作物遗传多样性对农业生态系统田间规模的地下（跳虫）和地上节肢动物（蜘蛛和掠食性步甲）多样性的积极影响，这可能是由更广泛的食物资源或更复杂的作物结构引起的。因此，增加作物遗传多样性可能是一项易于实施的计划，有利于农田生物多样性。 (C) 2013 Elsevier B.V. 保留所有权利。
This study tested whether increasing crop genetic diversity benefited farmland biodiversity in bread wheat (Triticum aestivum) fields, using an experimental approach in which arthropod and wild plant diversity were compared in a genetically homogeneous wheat variety vs. a variety mixture. The diversity of wild plant species was not affected by crop genetic diversity. However, we showed for the first time a positive impact of crop genetic diversity on below (collembola) and aboveground arthropod (spiders and predatory carabids) diversity at field scale in agroecosystems, which may be caused by a wider variety of food resources or more complex crop architecture. Increasing crop genetic diversity could therefore be an easy-to-implement scheme benefiting farmland biodiversity. (C) 2013 Elsevier B.V. All rights reserved.