文献类型： 外文期刊
作者： Hu, C. 1 ; Wang, X. H. 2 ; Qi, Y. C. 3 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Wuhan 430064, Peoples R China
2.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
3.Huazhong Agr Univ, Coll Life Sci & Technol, Wuhan 430070, Peoples R China
关键词： farmland;nematode diversity;greenhouse;functional guilds
期刊名称：BIOLOGICAL AGRICULTURE & HORTICULTURE （ 影响因子：1.357； 五年影响因子：1.883 ）
ISSN： 0144-8765
年卷期： 2014 年 30 卷 2 期
页码：
收录情况： SCI
摘要： Greenhouse and farmland are two types of land use with different levels of inputs and disturbances. Organic compost and mineral fertilizer treatments were designed for a vegetable greenhouse and a wheat-maize farmland in order to understand the impact of land use type and fertilizer management on the nematode community structure and diversity. The results showed that bacteria-feeding nematodes were the dominant trophic group in the greenhouse as against larger numbers of plant parasitic ones found in the farmland. Ten genera comprising 4 bacteria-feeders, 4 plant parasites, and 2 omnivore-predators were found in the greenhouse, and 29 genera comprising 10 plant parasites, 9 bacteria-feeders, 7 omnivore-predators, and 3 fungi-feeders were found in the farmland. A total of 12 functional guilds were observed in the samples. The cp-1 functional guilds were dominant in the greenhouse, whereas cp-3 functional guilds were dominant in the farmland. The soil nematode populations, trophic groups, and functional guilds reflected the differences between the greenhouse and the farmland land use systems. Although soil fertility parameters, except available P, in the greenhouse were higher (p<0.001), the biodiversity was lower than in the farmland (p<0.05). Nematode ecological indices, such as the Shannon index, modified maturity index, and enrichment index were sensitive for differentiating between the greenhouse and farmland ecosystems.
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