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采煤塌陷对百里杜鹃林区植物群落特征的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年06期
Page:
37-41
Column:
研究论文
publishdate:
2012-12-05

Article Info:/Info

Title:
Influences of coal mining collapse on characteristics of plant community of Hundredmile Azalea Area of Guizhou
Author(s):
XIE Yuangui1LONG Xiuqin1LIU Jiming2*ZENG Yue2
1. Guizhou Provincial Research Center for Karst Resource Environment and Development, Guiyang 550001, China;
2. Forestry College of Guizhou University, Guiyang 550025, China
Keywords:
coal mining collapseHundredmile Azalea Area of Guizhou community characteristics
Classification number :
S719
DOI:
10.3969/j.jssn.1000-2006.2012.06.008
Document Code:
A
Abstract:
The influences of coal mining collapse on plant community characteristics including community feature,importance value,dominance,similarity and diversity were studied at 3 representative communities of unsubsided area,fiveyear subsided area and tenyear subsided area in Hundredmile Azalea Area. Species composition,dominant species and constructive species of the community were significantly changed along with the collapse time extension. The dominant community layer showed a dynamic trend: initially was the arbor layer,next was herb layer, and finally become the shrub layer. Community diversity index and stability of the subsided area was lower than the unsubsided area, however at the later stage of subsided area the community diversity index displayed an increasing tendency. Similarity coefficient among the communities first decreased and then incrensed,the similarity to subsided community at the later stage also displayed an increasing tendency. Secondary succession took place in these plant communities obviously.

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Last Update: 2012-11-30