Journal of Ecology and Rural Environment ›› 2018, Vol. 34 ›› Issue (7): 614-621.doi: 10.11934/j.issn.1673-4831.2018.07.006

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Investigation on Animal Diversity in Different Paddy Fields With Organic Farming: A Case Study in Daizhuang of Jurong County, Jiangsu Province, China

WANG Lei1, LI Gang1, XI Yun-guan1, CHEN Qiu-hui1, LI Yan1, TIAN Wei1, ZHANG Chi1, LI Peng2, YANG Hao3, ZHANG Ji-bing1, XIAO Xing-ji1   

  1. 1. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China;
    2. College of Life Sciences, Nanjing Normal University, Nanjing 210023, China;
    3. Agricultural Service Center of Tianwang Town, Zhenjiang 212400, China
  • Received:2017-09-04 Online:2018-07-25 Published:2018-07-25


Information on the animal biodiversity in organic paddy fields is poorly understood and surprisingly obscure in China. A comparative filed study on the diversity and composition of animal community in 7-year, 9-year and 11-year organic and conventional rice fields was conducted. Animals observed via multiple field surveys belonged to Gastropoda, Oligocllaeta, Hirudinea, Insecta, Malacostraca, Branchiopoda, Arachnoidea, Amphibia, Pisces, and Mammalia (including 10 classes, 28 orders, 130 species) in organic paddy field. However, the animals observed in conventional paddy field belonged to only 8 classes, 13 orders, 27 species. Arthropods were the dominant species in all observed animal community. All observed arthropods belong to 4 classes, 15 orders, and 106 species (81.5% of total observed animal species) while other animals contained 6 classes, 13 orders, 24 species were identified in the organic paddy fields (18.5% of total observed animal species). Nevertheless, only 3 classes, 9 orders, 22 species (81.5% of total observed animal species) for arthropods whereas 5 classes, 4 orders, 5 species (18.5% of total observed animal species) for other animals were identified in the conventional paddy fields. The Margalef diversity and Pielou's evenness index of fishes, amphibians and arthropods were significantly (P< 0.01) higher in organic farms than that in conventional ones. Simpson diversity index of annelids, fishes and amphibians were significantly (P< 0.01) higher in the organic paddy fields than that in the conventional paddy fields. The results indicate that the aquatic ecosystem of organic paddy cultivation has higher ecological stability and environmental quality.

Key words: paddy field, organic agriculture, conventional agriculture, community, animal biodiversity

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