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山西崦山自然保护区侧柏林植物生态位特征

赵天梁

赵天梁. 山西崦山自然保护区侧柏林植物生态位特征[J]. 北京林业大学学报, 2015, 37(8): 24-30. doi: 10.13332/j.1000-1522.20150039
引用本文: 赵天梁. 山西崦山自然保护区侧柏林植物生态位特征[J]. 北京林业大学学报, 2015, 37(8): 24-30. doi: 10.13332/j.1000-1522.20150039
ZHAO Tian-liang. Niche characteristics of dominants in Platycladus orientalis forests in Yanshan Nature Reserve, Shanxi[J]. Journal of Beijing Forestry University, 2015, 37(8): 24-30. doi: 10.13332/j.1000-1522.20150039
Citation: ZHAO Tian-liang. Niche characteristics of dominants in Platycladus orientalis forests in Yanshan Nature Reserve, Shanxi[J]. Journal of Beijing Forestry University, 2015, 37(8): 24-30. doi: 10.13332/j.1000-1522.20150039

山西崦山自然保护区侧柏林植物生态位特征

doi: 10.13332/j.1000-1522.20150039
基金项目: 

山西省自然科学基金项目(2013011037-1)、科技部科技基础性工作专项(2011FY110300)

详细信息
    作者简介:

    赵天梁,高级工程师。主要研究方向:森林生态系统保护与管理。Email: zhaotianliangk@163.com 地址:030012 山西省太原市新建南路105号山西省林业调查规划院。

Niche characteristics of dominants in Platycladus orientalis forests in Yanshan Nature Reserve, Shanxi

  • 摘要: 应用Shannon-Weaver指数和Petraitis指数,研究了山西崦山自然保护区侧柏林主要植物的生态位(包括生态位宽度和生态位重叠)。结果表明:侧柏林36个优势种中,乔木中侧柏生态位宽度最大(3.56)、白皮松次之(3.12);灌木中荆条生态位宽度最大(3.43),黄刺玫(3.09)和多花胡枝子次之(3.09); 草本中披针苔草和山蒿生态位宽度值较大(分别为3.39、3.03),主要是由于这些种具有较为广泛的适应性。生态位宽度与物种分布频数呈正相关(r=0.941, P<0.01), 这说明物种的分布范围越广,它的生态适应性越强,因而生态位就越宽。36个优势种群并不存在完全普遍重叠,主要原因是环境的异质性较大和物种之间的生态互补性所致。在36个优势种中,表现出生态位重叠的有1099个种对,占总种对数的87.22%。侧柏与大多数种的重叠值较小,这意味着与其他种相比,在对资源利用的竞争中侧柏处于相对有利的位置,对群落的适应性要优于其他植物。

     

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出版历程
  • 收稿日期:  2015-02-07
  • 修回日期:  2015-02-07
  • 刊出日期:  2015-08-31

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