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| DOI： |
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| Biodiversity Analysis of Pond Wetlands Used for Paddy Fields Irrigation and Drainage in Ganfu Plain |
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LIU Fangping
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Jiangxi Provincial Centre of Irrigation Experiment, Jiangxi Provincial， Nanchang 330201, China
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| Abstract: |
| Biodiversity analysis plays an important guiding role in the reasonable reconstruction of pond wetlands and the water and fertilizer management of paddy fields. A typical area located in the Ganfu plain was chosen to conduct the biodiversity analysis of the pond wetlands which was used for the irrigation source and the drainage sink of paddy fields. The results showed that the species and number of insect and spider was rich and large. There were 145 species of insects and 21 species of spider. There were many species of zooplanktons, fish, amphibians and reptiles surviving in the pond wetlands. The species of rotifera, cladocera and copepoda were 12,8 and 6, respectively, belonging to 3 orders, 6 families. The species of amphibians was 4, belonging to 1 orders, 2 families. The species of reptiles was 4, belonging to 2 orders, 3 families. The Shannon-Wienner index of insect, spider, zoonplankton and fish were 4.90, 1.80, 0.70 and 3.47, respectively. The species, for example, Opsariichthys bidens, indicating high quality of water environment appeared in the pond wetlands, which showed that the whole wetland community status was “health” and the region’s ecological system was good. |
| Key words: Ganfu plain; paddy filed; pond wetland; biodiversity |
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