[1]WEN Zhong-ming,JIAO Feng,LI Jing.Identification of the Natural Communities in Vegetation Succession Using Grey Relational Analysis in Loess Hilly Region, China[J].Research of Soil and Water Conservation,2009,16(05):40-44.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 05
Page number:
40-44
Column:
Public date:
2009-10-20
- Title:
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Identification of the Natural Communities in Vegetation Succession Using Grey Relational Analysis in Loess Hilly Region, China
- Author(s):
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WEN Zhong-ming1, JIAO Feng1, LI Jing2
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1. Institute of Soil and Water Conservation, Northwest A & F University, CAS and MWR, Yangling, Shannxi 712100, China;
2. Armed Poilic Engineering College, Xi’an 710086, China
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- Keywords:
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natural vegetation communities; state identification; Grey Relational Analysis (GRA)
- CLC:
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X171.1
- DOI:
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- Abstract:
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Understanding and identification of the natural communities in vegetation succession is of great importance to the acceleration of vegetation succession by human intervention.This paper aims at exploring a new method,Grey Relational Analysis (GRA),to analyze and identify the state of 5 natural communities in vegetation succession in Ansai County,a loess hilly region.In order to do this,a reference system has been established and used as a yardstick to measure these 5 communities’ state.The results showed that GRA is effective and accurate in identifying the state of natural communities in vegetation succession.The 5 natural vegetation communities showed an order as follows according to their values: Hippophae rhamnoides communities>tripolium vulgare communities>bothriochloa ischaemum communities>Leymus scalinus communities>Artemisia scoparia communities.However,the components of indicators have different contributions to the evaluation.The succession indexes contribute more than other indexes.Yet the soil organic matter,soil water content,importance value,richness and restoration degree also have higher conjunction index value (>0.5).This indicates that environmental factors such as soil are as important as succession indexes in determining the state of natural communities in vegetation succession,especially for the human intervention of vegetation succession.However,the Grey Relational Analysis,as a model based on the similarity between the reference system and time series data,was applied in few vegetation science studies,thus needing more further research in the future.