泥鳅对稻田土壤动物的扰动效应

doi:CNKI:SUN:NCST.0.2011-01-021

Abstract

Abstract: A field experiment of two treatments(control plot and rice-fish system) was carried out in paddy field during the period from June to October 2008,to study bioturbation effects of Misgurnus anguillicaudatus on soil animal community in paddy field,using the multi-tier sampling method and macro-group classification method,and diversity index,evenness index,and dominance index that represents structural and quantitative characteristics of soil animal community.Results show that the dominant groups in the soil animal community are Gastropoda,Nematoda,and Enchytraeidae.Compared with the control plot,the rice-fish system has more groups but less individuals of soil animals.The diversity index and evenness index of the soil animals are higher,while the dominance index is lower in the rice-fish system than in the control plot,indicating the rice-fish integrated system is higher in stability and resistance against disturbance.Vertically,soil animals in paddy field concentrate mainly in surface soil profile.

Key words: Misgurnus anguillicaudatus, paddy field, soil animal, bioturbation

CLC Number:

S154.5

SUN Gang, FANG Yan, HU Jia-Lin, WANG Zhun. A Preliminary Study on Bioturbation Effects of Misgurnus anguillicaudatus on Soil Animals in Paddy Field[J]. Journal of Ecology and Rural Environment, 2011, 27(1): 100-103.

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A Preliminary Study on Bioturbation Effects of Misgurnus anguillicaudatus on Soil Animals in Paddy Field

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