[1]GUO Shun,HUANG Qitang.Correlation Analysis of Plant Diversity and Soil Microecological Environmental Factors in Wetland of Minjiang Estuary[J].Research of Soil and Water Conservation,2021,28(03):30-37.
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Correlation Analysis of Plant Diversity and Soil Microecological Environmental Factors in Wetland of Minjiang Estuary
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 03
Page number:
30-37
Column:
Public date:
2021-04-20
- Title:
- Correlation Analysis of Plant Diversity and Soil Microecological Environmental Factors in Wetland of Minjiang Estuary
- Keywords:
- estuary of Minjiang River; wetland plants; diversity; microbes
- CLC:
- S154.3
- DOI:
- -
- Abstract:
- The relationship between plant diversity and soil microecological environment factors in different wetlands(cattpha community,carex community,sedge community and reed community)in the estuary of Minjiang River from 2015 to 2019 was analyzed.The results show that the Shannon-wiener diversity index and the Margalef richness index decreased in the order:cattpha community>carex community>sedge community>reed community, among which there was no significant difference between carex community and sedge community(p>0.05);Simpson dominance index and McIntosh evenness index decreased in the order:reed community>carex community>sedge community>cattail community;Cattail community was located at the junction of wetland and oasis,so it had a more complex environment;Cattail community had the highest lep diversity distribution level,which was mainly due to its complex environmental factor structure;soil pH decreased in the order:sedge community>carex community>reed community>cattpha community,and the organic carbon and total nitrogen contents decreased in the order:cattpha community >carex community>sedge community>reed community in cattlia community;there was no significant difference in soil total phosphorus content among different plant communities(p>0.05);soil microbial carbon source utilization(AWCD)of different plant communities showed a general trend of gradual increase;AWCD increased rapidly within 24～72h after culture,but slowly after 72h,and increased sharply after 192h;at the same time,the utilization of soil microbial carbon source decreased in the order:carex community>cattail community>carex community>sedge community,which fluctuated locally;carbohydrate and carboxylic acid carbon sources were the main carbon sources of soil microorganisms in different plant communities in wetland,followed by amino acids,phenolic acids and polymers,and amine carbon sources had the lowest utilization rate; the species richness index(H),evenness index(E),dominance index(Ds)and carbon source utilization richness index(S)of the soil microbial community decreased in the order:carex community cattaily community>carex community>sedge community in reed community, among which the differences in dominance index(Ds)were not significant(p>0.05).Correlation analysis showed that soil nutrients and pH were closely related to vegetation diversity,in which pH negatively contributed to vegetation diversity and soil nutrients positively contributed to vegetation diversity,which was the important factor affecting the diversity of different plant communities in wetlands.
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Last Update:
2021-04-20