Agricultural producers have many incentives to clear small natural areas from their fields, as this can expand their cultivated land base. However, natural areas can play a role in delivering ecosystem services that improve crop productivity (e.g., by providing habitat for beneficial arthropods, that deliver pollination or pest control). We assessed the impact of landscape complexity on adjacent canola (Brassica napus) yield at both the field- and subfield-level using remotely sensed products. Fields with higher landscape complexity generally had higher mean yields. However, fields surrounded mostly by either crop or non-crop covers had lower yields, possibly due to a lack of ecosystem services or a strong yield-reducing edge effect. At the subfield-level, we found evidence of a boost in yield between 30 and 100 m from the field edge towards its center, as well as a potential yield-stabilizing effect at the same range.

农业生产者有许多动机从他们的田地中清除小的自然区域，因为这可以扩大他们的耕地基础。然而，自然区域可以在提供提高作物生产力的生态系统服务方面发挥作用（例如，通过为有益的节肢动物提供栖息地，提供授粉或害虫防治）。我们评估了景观复杂性对相邻油菜 ( Brassica napus ) 的影响) 使用遥感产品在现场和子现场级别的产量。具有较高景观复杂性的田地通常具有较高的平均产量。然而，主要由作物或非作物覆盖物包围的田地产量较低，这可能是由于缺乏生态系统服务或强烈的减产边缘效应。在子场级别，我们发现从场边缘到其中心的 30 到 100 m 的产量增加的证据，以及在相同范围内的潜在产量稳定效应。