关键词: 土壤线虫, 校园景观, 多样性, 群落特征, 空间分布格局

Abstract: To investigate the soil nematode diversity and community characteristics across different functional zones in the Ancient
City Campus of Dali University, fifteen 10 m×10 m sampling plots were established in the garden zone, residential zone, administrative zone, sports zone, and teaching zone in 2022. The five point sampling method was used to collect samples, and the Bellman funnel method was used to isolate nematodes and conduct morphological identification. The results showed that a total of 268 nematodes were identified, belonging to 2 classes, 6 orders, 41 families, and 61 genera. Labronema was the only dominant genus, and the dominant group was omnivorous-predatory nematodes; the soil nematode diversity index on campus is relatively high （3.63）, and the ecosystem stability is favorable （maturity index 3.29）. There are significant differences in various indices between different functional zones, with the overall performance being the highest in the garden zone and the lowest in the teaching zone. Soil nematode biomass was consistent with the results of diversity and ecosystem stability indices.The study concluded that nematode diversity and community structure in Dali University′s campus soil are generally favorable overall. However, significant variations in nematode community structure, diversity, and stability exist across different functional zones due to differences in vegetation types, surface cover, and human activity intensity.

Key words: soil nematode, campus landscape, diversity, community characteristics, spatial distribution pattern