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Impacts of Flaveria bidentis invasion on ground-dwelling soil animal community in different habitats.

LIU Ning1,2, FU Wei-dong1**, ZHANG Guo-liang1, LIU Yu-sheng2, LU Ai-Ling3   

  1. (1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2 College of Plant Protection, Shandong Agricultural University, Taian 271018, Shandong, China; 3Agricultural Bureau of Julu County, Hebei Province, Xingtai 055250, Hebei, China)
  • Online:2014-01-10 Published:2014-01-10

Abstract: An investigation was conducted to understand the impacts of Flaveria bidentis invasion on ground-dwelling soil animal community in three different habitats (forestland, uncultivated land, and ditch). Pitfall trap was used to investigate grounddwelling soil animals every two weeks from April 26 to September 17 in 2012. A total of 439515 individuals were collected in three habitats, belonging to 3 phyla, 7 classes, and 21 orders, among which Formicidae was the dominant taxa in the community, and the relative abundance of other taxa was smaller. As the result demonstrated, F. bidentis could provide habitats for Formicidae, Isopoda, Gryllidae and Araneae which like shady and moist environment, thereby had an effect on the community structure and diversity of ground-dwelling soil animal community. Such impact, mainly related to growth conditions of F. bidentis, was weaker in forestland habitat but stronger in uncultivated land habitat and ditch habitat, and became more obvious during the season of growth peak for F. bidentis. In conclusion, the microclimate of three habitats might be changed and the ground-dwelling soil animal community structure was affected after the invasion of Flaveria bidentis, which increased ground-dwelling soil animal diversity.

Key words: soil enzyme activity, aggregate stable, mineral N fertilizer reduction and organic fertilizer substitution, N fertilizer, organic fertilizer, soil biological activity.