Characteristics of soil nematode communities under two different land use systems

文献类型： 外文期刊

第一作者： Hu, C.

作者： Hu, C.;Wang, X. H.;Qi, Y. C.

作者机构：

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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