生物多样性 ›› 2001, Vol. 09 ›› Issue (3): 237-240.doi: 10.17520/biods.2001036

• 论文 • 上一篇    下一篇

施用化肥对黑土地区线虫群落组成及多样性产生的影响

梁文举, 张万民, 李维光, 段玉玺   

  1. 1 (中国科学院沈阳应用生态研究所陆地生态过程开放研究实验室,  沈阳 110016)
    2 (中国科学院沈阳应用生态研究所土壤与农业生态研究室,  沈阳 110016)
    3 (沈阳农业大学植物保护系,  沈阳 110161)
  • 收稿日期:2001-01-20 修回日期:2001-06-11 出版日期:2001-08-20

Effect of chemical fertilizer on nematode community composition and diversity in the Black Soil Region

LIANG Wen-Ju, ZHANG Wan-Min, LI Wei-Guang, DUAN Yu-Xi   

  1. 1 Laboratory of Terrestrial Ecological Process , Institute of Applied Ecology , Chinese Academy of Sciences , Shenyang  110016
    2 Department of Agroecology , Institute of Applied Ecology , Chinese Academy of Sciences ,Shenyang  110016
    3 Department of Plant Protection , Shenyang Agricultural University , Shenyang  110161
  • Received:2001-01-20 Revised:2001-06-11 Online:2001-08-20

本文针对玉米生长期内施用化肥对东北黑土地区线虫群落组成及多样性产生的影响进行了研究,共获得14科、16属,其中头叶科(Cephalobidae)、小杆科(Rhabditidae)、真滑刃属(Aphelenchus)、垫刃属(Tylenchus)为优势科/属。线虫总数在取样日期和处理之间存在着极显著差异(p<0.01)。应用多样性指数、均匀度指数、丰富度指数和优势度指数分析比较了施肥和不施肥试验小区土壤线虫群落多样性分布规律,其中Shannon多样性指数和丰富度指数是评价线虫群落对化肥投入最敏感的指数。

The effects of chemical fertilizer on nematode community composition and diversity were investigated in a field throughout the corn-growing season in the Black Soil Region , Northeast China. 14 families and 16 genera were observed. Cephalobidae , Rhabditidae , A phelenchus , and Tylenchus were found to be the dominant families/ genera. Significant differences were found between sampling dates ( p < 0. 01) and between treatments ( p < 0. 01) in the total number of nematodes during the study period. Ecological indices of diversity , evenness , richness and dominance and the dynamics of the nematode community were compared between the t reatment and the cont rol plot . Shannon index and richness were found to be more sensitive indicators than other ecological indices for assessing the response of nematode communities to the application of chemical fertilizer.

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