Abstract:
As a part of urban forest construction, the exurban plain woodlands have become an ideal habitat for natural enemies of agricultural pests because of their abundant biomass and complex community structure. The construction of woodlands for conservation of natural enemies is of great significance to the ecological regulation of agricultural pests and sustainable ecosystem development. Based on the research of domestic and foreign literature, this research, taking woodlands for conservation of natural enemies as the object of review, summarizes the relationship between woodlands and the inhabitation of natural enemies, analyzes the influencing mechanism of woodlands on the inhabitation of natural enemies in the three aspects of tree species configuration, community structure and spatial pattern, and proposes relevant construction strategies that can achieve rational configuration and layout optimization of woodlands for conservation of natural enemies from the following four dimensions: planting mixed forests of different ages, increasing the proportion of food source plants, building nest shelters, and enhancing the heterogeneity of landscape patterns. In this way, the research builds a diversified woodland environment suitable for the inhabitation of natural enemies that can enhance the function of natural enemies in controlling the harm to and protecting the benefits of the ecosystem, in hope of expanding urban forest functions, maintaining biodiversity and improving ecological service functions.