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本文从玉米地中、玉米地周围、周围大尺度这三个层次范围综述了非作物植被对玉米地节肢动物群落的影响。在不同尺度上,非作物植被对玉米地节肢动物群落影响的形式不同。在玉米地中,杂草等覆盖物能够增加天敌种类和数量,减少害虫的危害,但是杂草等覆盖物的存在同时也可能有利于害虫的发生;在玉米地周围,非作物植被可以为天敌提供栖息、越冬、捕食等场所,可以作为天敌“库”的场所;在周围大尺度上,非作物植被与作物的种植面积的比例影响着玉米地中节肢动物群落的动态,某些节肢动物可能对某一特定范围内的植被组成有响应。本文还浅析了非作物植被影响玉米地节肢动物群落的机理,并对相关问题进行了讨论。
In this paper, the effects of non-crop vegetation on arthropod community in maize are summarized from three aspects: corn field, corn field and surrounding large-scale. At different scales, the impact of non-crop vegetation on arthropod communities in maize is different. In corn fields, weeds and other coverings can increase the species and quantity of natural enemies and reduce the harm of pests, but the presence of weeds and other coverings may also be beneficial to the occurrence of pests; and non-crop vegetation can be a natural enemy around cornfields Provide habitat, wintering, predation and other places, can be used as natural enemies “library ” place; in the surrounding large-scale, the proportion of non-crop vegetation and crop acreage affect the dynamics of the arthropod community in maize field, some arthropods Animals may respond to the composition of vegetation in a particular area. The paper also analyzes the mechanism of non-crop vegetation affecting arthropod community in maize and discusses the related issues.