Research on Community Structure and Patterns of Population Distribution of Natural Juniper Forest in the Huanghua Mountains of Xianghuang Banner

Abstract

Abstract: Four typical standard sample plots were set in natural juniper forest in the Huanghua Mountains in Xianghuang Banner of Xilin Gol League in Inner Mongolia Autonomous Region in order to obtain field survey data with the adjacent grid method.The main objective was to study community structure and tree layer and shrub layer dominant population spatial distribution patterns.The results showed that:(1)The ground diameter of juniper was smaller and the individual peak distribution was more concentrated in natural juniper forest,so there was significant structural change in diameter class.Because there were obvious defects in diameter class,the community was unstable.(2)Height class of tree communities was in lower level,while height class of shrub communities was better in natural juniper forest.(3)The distribution patterns of juniper populations was mainly aggregated distribution with uniform distribution pattern,while glaucescent elm population was aggregated distribution pattern in natural juniper forest.The dominant rhamnus parvifolia bunge population and dominant pubescent spiraea population are aggregated distribution pattern in shrub layer.The community was in an unstable stage of recovery development.Human and natural disturbances and the biological characteristics of populations contributed to the contagious distribution.

Key words: The Huanghua Mountains, natural juniper forest, community structure, distribution patterns

CLC Number:

S718.5

KANG Xia, YAO Yunfeng, LI Gangtie, REN Lijuan. Research on Community Structure and Patterns of Population Distribution of Natural Juniper Forest in the Huanghua Mountains of Xianghuang Banner[J]. FOREST RESOURCES WANAGEMENT, 2012, 0(2): 47-53.

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