传统耕作和免耕农业生态系统中的线虫营养结构。
Nematode trophic structure in conventional and no-tillage agroecosystems.
作者信息
Parmelee R W, Alston D G
出版信息
J Nematol. 1986 Jul;18(3):403-7.
The effect of tillage intensity on nematode community trophic structure and the role of nematodes in the regulation of decomposition rates in agroecosystems were examined. Conventional (CT) and no-tillage (NT) agroecosystems were sampled monthly for 1 year. Tillage affected nematode trophic structure and total abundance. Monthly mean densities of bacterivorous, fungivorous, and total nematodes were greater in CT than in NT plots. In the summer, however, fungivorous and plant parasitic nematodes were more abundant in NT. No difference was detected for omnivore-predator nematodes.
研究了耕作强度对土壤线虫群落营养结构的影响以及线虫在农业生态系统分解速率调节中的作用。对传统耕作（CT）和免耕（NT）农业生态系统进行了为期1年的每月采样。耕作影响了线虫的营养结构和总丰度。CT样地中食细菌线虫、食真菌线虫和线虫总丰度的月平均密度高于NT样地。然而，在夏季，NT样地中食真菌线虫和植物寄生线虫更为丰富。杂食-捕食性线虫未检测到差异。
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