HAN Xin-hua,XU Yan-li,PAN Feng-juan,et al.Vertical Distribution of Nematodes in Soybean Field in Black Soil Region[J].Soybean Science,2008,27(02):292-295.[doi:10.11861/j.issn.1000-9841.2008.02.0292]
黑土区大豆田土壤线虫垂直分布
- Title:
- Vertical Distribution of Nematodes in Soybean Field in Black Soil Region
- 文章编号:
- 1000-9841(2008)02-0292-04
- Keywords:
- Soybean; Soil nematode; Rotation system; Vertical distribution
- 分类号:
- S435.651
- 文献标志码:
- A
- 摘要:
- 为了解不同土地利用方式对土壤线虫垂直分布的影响,对中国科学院海伦生态农业实验站长期定位试验区大豆田0~80 cm深度土壤线虫进行研究,所取土样茬口为大豆连作15a、麦-米-豆轮作、麦豆麦豆迎茬和休闲地,以期明确不同土地利用方式下土壤线虫总数和营养类群的变化。结果表明:各取样田土壤线虫总数从0~80 cm深度呈现逐渐下降趋势,0~30 cm耕层土壤是线虫主要的聚集地。各营养类群线虫在取样茬口间数量动态变化有差异,总的来说大豆田高于休闲田,而大豆不同茬口营养类群变化不同,捕食杂食类群出现最少。
- Abstract:
- In order to understand the effect of different land use on soil nematodes vertical distribution,a field investigation was conducted at the Hailun Agricultural Ecology Experimental Station to study the vertical distribution of nematode communities down to a depth of 80 cm under soybean rotation systems of continuous soybean 15a(CS),wheat-maize-soybean(WMS),wheat-soybean- wheat-soybean(WSWS) and bare field.The results showed that the number of total soil nematodes exhibited a gradual decrease trend with depth under each samples.The majority of nematodes were present in the 0~30 cm soil layers.The numbers of trophic groups in soybean field were higher than that in bare field,and predators-omnivores were less present.
参考文献/References:
[1] Wu J,Fu C,Chen S,Chen J.Soil faunal response to land use:effect of estuarine tideland reclamation on nematode communities[J].Applied Soil Ecology,2002,21:131-147.
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备注/Memo
基金项目:中国科学院知识创新工程重要方向资助项目(kzcx2-yw-408)。