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选取农田、居民点园地和“三北”防护林等吉林省中部黑土区典型农业生境研究样地,于2003年7月和9月分别进行土壤螨类野外采样,共捕获土壤螨类64属、8930只。研究结果显示,不同农业活动生境土壤螨群落优势类群组成和个体数量差异显著;农业生产活动促使螨向土壤下层移动,其中7月类群数下移最为明显;不同土地利用方式对螨群落多样性影响不同,玉米田和居民点园地农业活动减少了螨群落多样性。
A typical agricultural habitat research site in the black soil area of central Jilin Province, including farmland, residential area and “Three North” shelterbelt, was selected for field sampling of soil mites in July and September 2003, respectively. A total of 64 genera of soil mites were captured and 8930 only. The results showed that there were significant differences in the composition of mtDNA and the number of individuals in different habitats of agricultural activities. In agricultural production activities, mites migrated to the lower soil layer, of which the number of taxa in July was the most obvious. The effects of different land use patterns on the diversity of mite communities In contrast, agricultural activities in cornfields and residential areas reduced mite community diversity.