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当前位置: 首页 > 文章 > 秦岭西段锐齿栎群落优势种种间联结和种间分离规律的研究 四川林勘设计 2016 (3) 20-26
Position: Home > Articles > Research on the Interspecific Association and Separation of the Dominant Populations of Quercus aliena var. acuteserrata Community in the West of Qinling Sichuan Forestry Exploration and Design 2016 (3) 20-26

秦岭西段锐齿栎群落优势种种间联结和种间分离规律的研究

作  者：
蔡章君
单  位：
四川省盐边县益民乡农业服务中心
关键词：
种间联结;χ2检验;秦岭西段;锐齿栎群落;种间分离
摘  要：
在野外对秦岭西段锐齿栎群落中的乔木进行统计,选取频度大于35%的优势种,在2×2联列表基础上,应用χ~2检验、Ochiai系数和Dice系数检验研究36个优势种群的种间联结性。并结合种间分离指数,比较系统地揭示了它们的内在联系。结果表明:(1)优势种群的种间联结性,χ~2统计度量值表明,在162个种对中,147对联结关系未达到显着水平,种间的独立性较大;χ~2检验更加理想地揭示了个别种对存在较强的联结性。(2)Ochiai系数矩阵和Dice系数检验的结果与χ~2检验结果吻合地较好,总体联结性也弱。通过研究数据验证了以上三种检验方法的灵敏程度:χ~2检验
译  名：
Research on the Interspecific Association and Separation of the Dominant Populations of Quercus aliena var. acuteserrata Community in the West of Qinling
作  者：
CAI Zhang-jun;Agricultural Service Center of Yimin Village in Yanbian County;
关键词：
Interspecific relationship;;χ2-test;;West of Qinling;;Quercus aliena var;;acuteserrata community;;Interspecific separation
摘  要：
Taking the dominant populations of Quercus aliena var. acuteserrata community in the West of Qinlingwith frequency greater than 35% as research object,this paper researched the interspecific association coefficients of 36 dominant populations using χ~2test,Ochiai coefficient matrix and Dice coefficient test. The results as followed:( 1) Theinterspecific associations of 147 pair of dominant populations by χ~2test were unremarkable,and which of a few pair of dominant populations were remarkable.( 2) Theinterspecific associations by χ~2test,Ochiai coefficient matrix and Dice coefficient test were similar. The sequence of sensitive degree of three test methods were χ~2test < Ochiai coefficient matrix < Dice coefficient test.( 3) The species-pairs paired randomly were occupied 98. 41%,and the species-pairs of positive separation or negative separation were occupied 0. 32% and1. 27% respectively. The species-pairs of positive separation were Acer tetramerum Pax var. betulifolium-Carpinus turczaninowii Hance var. stipulate and Swida macrophylla( Wall.) Soják-Ailanthus altissima. The dominant populations of Quercusaliena var. acuteserrata community had the independent distribution characteristic.

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