CAJ | 학술논문

根据野外调查的样地数据资料,运用2×2列联表的Fisher精确检验、Pearson相关系数和Spearman秩相关系数检验,并结合DCA排序,分析塔克尔莫乎尔沙漠银沙槐群落主要植物种群之间的种间关系.结果表明：Fisher精确检验有3个种对呈显著正关联,3个种对呈显著负关联；Pearson相关系数检验有1个种对呈显著正相关,12个种对呈显著负相关；Spearman秩相关系数检验,有14个种对存在显著相关,其中负相关13对,占所有种对数的14．29％,正相关1对,占所有种对数的1．1％.银沙槐群落种间关系相对松散,反映出植物群落随着环境变化其物种组成也发生相应变化,正向着相对稳定独立的无关联方向发展.
근거야외조사적양지수거자료,운용2×2렬련표적Fisher정학검험、Pearson상관계수화Spearman질상관계수검험,병결합DCA배서,분석탑극이막호이사막은사괴군락주요식물충군지간적충간관계.결과표명：Fisher정학검험유3개충대정현저정관련,3개충대정현저부관련；Pearson상관계수검험유1개충대정현저정상관,12개충대정현저부상관；Spearman질상관계수검험,유14개충대존재현저상관,기중부상관13대,점소유충대수적14．29％,정상관1대,점소유충대수적1．1％.은사괴군락충간관계상대송산,반영출식물군락수착배경변화기물충조성야발생상응변화,정향착상대은정독립적무관련방향발전.
Based on the data from the field,the interspecific relationships of the major species in Ammodendron argen-teum communities of Takeermohuer Desert were studied by Fisher’s exact test for 2×2 contingency table,Pearson’s correlation coefficient and Spearman’s rank correlation coefficient test,coupled with DCA ordinatio.The results indi-cated that positive association coefficients of 3 species-pairs and negative association coefficients of 3 species-pairs for the Fisher’s exact test were significant.In the Pearson’s correlation coefficient test,the number of species-pairs being significantly positive was 1,while the negative was 12.According to Spearman’s rank correlation coefficient,14 spe-cies-pairs had significant (P<0.05 or P<0.01)correlation,including 13 negative correlation species-pairs and 1 posi-tive correlation speciesGpairs,accounting for 14.29%and 1.1%respectively in the total 91 species-pairs.The interspe-cific relationships of A.argenteum communities were incompact,the element of communities would change while the environment condition alter,the A.argenteum communities were evolving into steady and independent phase.