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DU Soukang, TANG Guoyong, LIU Yungen, LEI Chenyu, XU Yingjie, RUAN Changming, SUN Yongyu, ZHANG Chunhua, WANG Yan. Plant diversity in various sections of Jinsha River dry-hot valley under different site environments[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210572
Citation: DU Soukang, TANG Guoyong, LIU Yungen, LEI Chenyu, XU Yingjie, RUAN Changming, SUN Yongyu, ZHANG Chunhua, WANG Yan. Plant diversity in various sections of Jinsha River dry-hot valley under different site environments[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210572

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Plant diversity in various sections of Jinsha River dry-hot valley under different site environments

doi: 10.11833/j.issn.2095-0756.20210572
  • Received Date: 2021-08-17
  • Accepted Date: 2022-03-01
  • Rev Recd Date: 2022-02-25
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Plant diversity in various sections of Jinsha River dry-hot valley under different site environments

doi: 10.11833/j.issn.2095-0756.20210572

Abstract:   Objective  This study is aimed at an investigation of the structural features and differences of the plant diversity in various sections of the dry-hot valley under different site environments so as to efficiently protect and restore the biological environment of Jinsha River dry-hot valley.   Method  With the employment of standard sample plot survey method, a survey was conducted of the plant species richness and diversity of 47 plots in the upper, middle and lower sections of the Jinsha River dry-hot valley.   Result  The plant species richness, diversity and uniformity of the Jinsha River dry-hot valley increased from the upper section to the lower one with the order of species richness being natural forest (20.56)>plantation (12.16)>sparse trees and shrubs (8.00) and no significant difference in diversity or uniformity between natural forest and plantation. The plant diversity tends to increase as the altitude increases with the plant diversity of shade slopes being significantly higher than that of sunny slopes (P<0.05). No significant differences have been found in diversity among the upper, middle and lower sections in the range of 800−1 400 m, while in the range of 1 400−2 000 m, the diversity in the middle section was lower than that in the lower section, but higher than the upper section. The plant diversity in the lower section was always higher than that in the middle section and the upper section of the same slope, and the Shannon-Wiener diversity index and Simpson diversity index in the lower section were significantly different from those of the upper section (P<0.05).   Conclusion  There are significant differences in plant diversity in various sections of the Jinsha River dry-hot valley, with altitude and slope as main environmental influencing factors, and local plantation may increase the plant diversity. [Ch, 1 fig. 4 tab. 27 ref.]

DU Soukang, TANG Guoyong, LIU Yungen, LEI Chenyu, XU Yingjie, RUAN Changming, SUN Yongyu, ZHANG Chunhua, WANG Yan. Plant diversity in various sections of Jinsha River dry-hot valley under different site environments[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210572
Citation: DU Soukang, TANG Guoyong, LIU Yungen, LEI Chenyu, XU Yingjie, RUAN Changming, SUN Yongyu, ZHANG Chunhua, WANG Yan. Plant diversity in various sections of Jinsha River dry-hot valley under different site environments[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210572
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