绵阳针阔叶混交型防护林优势种群间的相关性研究

Study on Interspecific Correlation of the Dominant Population from the Protective Forest of Needile Broadleaved Mixed Type in Mianyang

应用植物种群生态学研究的有关方法，对四川中部绵阳地区官司河流域针阔叶混交型防护林的１２个优势种群间的联结性和８个主要建群间的多度协变关系进行了定量研究，以探索群落内各种群间的联系状况，从而为本区长江防护林营建中的林种配置提供一定的理论依据和参考。结果表明：无论是种间联结，还是种间协变，除个别种对外，多数种群间的相关性不显著，总体上趋于独立分布。这反映了研究区防护林群落的年轻性和不成熟性。但也应注意外界干扰对测定结果造成的影响。

By using methods of plant genecology,the inter specific association among 12 dominant populations and the interspecific abundance covariation among 8 dominant populations,from the protective forest of needle broadleaved mixed type lied in Guanshi River Valley of Mianyang area,in the center of Sichuan Province were studied quantitatively.It is expected to provide some theoretical basis and reference for the construction of Changjiang River protective forest in this region.The result showed that the correlation,either about the interspecific association or about the interspecific covariation,is not obvious in most of the species pair.The general tendency of distribution was independent.The result of the research also provided some proofs to the junior and immaturity of the protective forest in the studying region.However,the attention to the effect of interference from the outside on the results should be paid.