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作为热河昆虫群的重要组成部分,义县组昆虫化石内容独特、丰富,共16目95科201属271种。根据目前已发表的化石资料,本文列举了冀北、辽西义县组昆虫化石以及与昆虫伴生的其它动植物化石。通过对其生物学和生态学特性的分析,初步建立了冀北、辽西义县组生态系统结构关系图,并恢复了它们所代表的生态环境。结构关系图显示该生态系统相对稳定,可能处于群落发展的稳定时期。该地区整体上为温暖湿润的气候环境,同时存在季节性干旱-半干旱的小气候环境。有丰富且宁静的深水湖泊,周围还有其他形式的水体环境,如沼泽和浅水环境;附近有高山存在,且海拔在800 m以上,高山上有湖泊,山间有溪流;土壤营养丰富且水分比较充足,适宜多种动植物生存。
As an important part of the Rehe insect assemblages, the Yixian Formation has unique and rich contents of fossil insects, including 271 species of 201 genera and 16 families, 95 families. According to the published fossil data, this paper lists the fossils of insects and fossils of other animals and plants associated with insects in Hebei Province and Yixian County in western Liaoning. Through the analysis of its biological and ecological characteristics, we initially established the relationship diagrams of ecosystem structure in Jixi and Liaoxi Xixian, and restored the ecological environment they represent. The structural diagram shows that the ecosystem is relatively stable and may be in a stable period of community development. The region as a whole is warm and humid climate conditions, while there is a seasonal arid - semi-arid microclimate environment. There are rich and quiet deep water lakes, surrounded by other forms of water environment, such as swamps and shallow water environment; near the existence of high mountains and above 800 m above sea level, there are lakes in the mountains, mountains stream; soil nutrient-rich and water More adequate for a variety of plants and animals to survive.