[1]WU Shixiang,HE Cong,YANG Dan,et al.Study of Vegetation Restoration After the Earthquake on Xiejiadian Landslide in the Period 2009-2018[J].Research of Soil and Water Conservation,2019,26(06):235-239,248.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
235-239,248
Column:
Public date:
2019-10-17
- Title:
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Study of Vegetation Restoration After the Earthquake on Xiejiadian Landslide in the Period 2009-2018
- Author(s):
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WU Shixiang1, HE Cong1, YANG Dan1,2, WANG Chen1, LIU Shoujiang1,2
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1. School of Land and Resources, China West Normal University, Nanchong, Sichuan 637000, China;
2. Institute of Jialing River Basin, China West Normal University, Nanchong, Sichuan 637009, China
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- Keywords:
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landslide after the earthquake; vegetation restoration; plant community; plant diversity; soil and water conservation; Xiejiadian in Yinchanggou
- CLC:
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Q948;X43
- DOI:
-
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- Abstract:
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Since the ‘5·12’ mega-earthquake, the landslide on Xiejiadian in Yinchanggou has formed for 10 years. In the past 10 years, on the landslide, we had set up 9 plots by using the sample method to investigate the growth status of plant species. And the data of the plant community structure, plant dominant species and plant diversity were studied and analyzed. The results are as follows. (1) During the period from 2009 to 2018, the total number of plant species increased from 53 to 92, the number of species of trees increased from 0 to 12, the number of shrub species increased from 4 to 38, the number of herbaceous species increased from 49 to 65 and then decreased to 42. The plant community changed from a single structure dominated by herbage to a complete structure of arbor, shrub and grass. The recovery is significant. (2) During the vegetation restoration, the dominant species of plant community underwent a process of plant succession. It changed from the early Vitis heyneana-Buddleja lindleyana type to the initial Alnus cremastogyne-Rubus tephrodes-Equisetum hyemale type, and then to the late Alnus cremastogyne-Hydrangea strigose-Dicranopteris dichotoma type. (3) After 10 years of recovery, the Margalef richness index increased from 2.80 to 6.06 in general; the Shannon-Wiener index increased from 2.18 to 3.13; the Simpson index rose from 0.88 to 0.93; the Pielou evenness index from 0.13 to 0.93. The plant diversity had increased year by year. This study reveals the characteristics, the dynamics of landslide plant species, plant community structure and plant diversity during the recovery process in the past 10 years after the earthquake, and provides the reference and reference for the related research on vegetation restoration after earthquake and the development of soil and water conservation practices.