Response of nematodes to agricultural input levels in various reclaimed and unreclaimed habitats
文献类型: 外文期刊
第一作者: Li, Yufei
作者: Li, Yufei;Cao, Zhiping;Li, Ji;Hu, Cheng;Yang, Hefa
作者机构:
关键词: Nematodes;Ecological indices;Fertilizer input gradient;Greenhouse;Soil reclamation
期刊名称:EUROPEAN JOURNAL OF SOIL BIOLOGY ( 影响因子:2.846; 五年影响因子:3.618 )
ISSN: 1164-5563
年卷期: 2014 年 60 卷
页码:
收录情况: SCI
摘要: An analysis of nematode communities was conducted in two groups of habitats at the Quzhou Experimental Station of China Agricultural University. Saline-alkali land (SA) and wild woodland (WW) represented unreclaimed habitats (URE) without any agricultural input. Reclaimed habitats (RE) comprised artificial woodland (AW), orchard (OR), farmland (FA) and a greenhouse (GH), which represented increasing agricultural input level. Generally, the means of the ecological indices between unreclaimed and reclaimed habitats suggested that the reclamation of saline alkali land increased nematode diversity. In the farmland and orchard, mid-levels of fertilizer input increased nematode diversity (Shannon index (H') and diversity of trophic groups (TD), respectively), whereas high levels of fertilizer input decreased nematode diversity (H') in the greenhouse. The pattern result of maturity index (MI) and maturity index for nematodes with cp2-5 (MI25) indicated that high input in the greenhouse with a high relative abundance of enrichment opportunists increased the difference of disturbance between unreclaimed and reclaimed habitats. Canonical correspondence analysis (CCA) results corresponded to the beta(T) index, which suggested that subsequent human activities (from low to high input) exerted greater influences on nematode communities than did soil reclamation (from no input to low input). (C) 2013 Elsevier Masson SAS. All rights reserved.
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