Research on Larch Forest Herbs Niche in Saihanba

FOREST RESOURCES WANAGEMENT ›› 2011›› Issue (1): 86-90.

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Research on Larch Forest Herbs Niche in Saihanba

ZHAO Shang¹, GU Jiancai¹, XI Xinqiang^2,3, YANG Yumei¹, CHEN Ping¹, XIANG Guangrui¹

1. Hebei Agricultural University,Baoding 071000,Hebei,China;
2. The State Key Laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;
3. Graduate University of Chinese Academy of Sciences,Beijing 100049,China

Received:2010-10-27 Revised:2010-11-08 Online:2011-02-28 Published:2020-12-16

Abstract

Abstract: This study used plot method for surveying different resource niche community,and calculated herb niche breadth and niche overlap in Larix prinicipis-rapprechii plantation in Saihanba.The results showed that:Carex rigescens and Saussurea taraxacifolia had larger niche breadth,the LNB was 1.1851 and 1.0048,the HNB was 0.4314 and 0.2942 respectively.In addition 32.61% of herb niche breadth(LNB)was 0,most concentrated on [0.4,0.6),[0.6,0.8) and [0.8,1.0),the LNB was 19.57%,19.57% and 15.22% respectively.Herbaceous species niche overlap accounted for 67.64% larger than 0.1,indicating that the herbaceous plants had intense interspecific competition for using same resource niche in Larch plantation.

Key words: Niche overlap, Levins niche breadth, Hurlbert niche breadth, community stability

CLC Number:

S718.5

ZHAO Shang, GU Jiancai, XI Xinqiang, YANG Yumei, CHEN Ping, XIANG Guangrui. Research on Larch Forest Herbs Niche in Saihanba[J]. FOREST RESOURCES WANAGEMENT, 2011, (1): 86-90.

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Research on Larch Forest Herbs Niche in Saihanba

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