[1]LIANG Chunling.Study on Plant Community Diversity and Soil Organic Carbon Storage in Dongting Lake Wetland[J].Research of Soil and Water Conservation,2020,27(06):66-71.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 06
Page number:
66-71
Column:
目次
Public date:
2020-10-20
- Title:
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Study on Plant Community Diversity and Soil Organic Carbon Storage in Dongting Lake Wetland
- Author(s):
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LIANG Chunling
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(Department of Surveying and Planning, Shangqiu Normal University, Shangqiu, Henan 476000, China)
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- Keywords:
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Dongting Lake; wetland; vegetation diversity; organic carbon storage
- CLC:
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Q948.1; S153
- DOI:
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- Abstract:
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In order to explore the plant community diversity and soil organic carbon storage in wetland of Dongting Lake, the vegetation diversity and soil organic carbon storage of the main wetlands(shade grass community, water polygon community, carex community and reed community)in Dongting Lake were examined from 2016 to 2018. The results showed that the Margalef richness index, shannon-wiener diversity index and Mclntosh evenness index in wetland of Dongting Lake decreased in the order: Phragmites australis community>Carex parva community>Polygonumhy dropiper community>Sciaphila tenella community; as for Simpson dominance index, it showed an opposite change trend; both soil organic carbon content and organic carbon storage showed consistent change patterns, with the topsoil being the highest and gradually decreasing with the increase of soil depth; with the increase of the depth profile, soil organic carbon storages reduced gradually, content of surface soil organic carbon(0—20 cm)was the highest, the correlation analysis showed that Margalef richness index, Shannon Wiener diversity index, Cody index and Sorenson index of Sciaphila tenella communities, Polygonumhy dropiper community, Carex parva community, Phragmites australis community were significantly or extremely significantly positively correlated with organic carbon content and organic carbon storage; from the absolute value of correlation coefficient, the correlation coefficient with organic carbon content was higher than that with organic carbon storage. The two-factor analysis showed that vegetation type and age had significant influence on organic carbon content and organic carbon storage (p<0.05), and the interaction of vegetation type and age had significant influence on organic carbon content and storage (p<0.05).