樟子松人工林生长与立地因子间关系的研究──草牧场防护林主要树种适地适树初步研究（Ⅰ）

STUDY ON THE RELATIONSHIP BETWEEN THE GROWTHOF PINUS SYLVESTRIS VAR. MONGOLICA LITV.PLANTATION AND ITS SITE FACTORS──ONE OF PRELIMINARY STUDIES ON MATCHINGSPECIES AND THE SITE OF THE MAIN TREESPECIES OF SHELTERBELTS ONTHE PASTURELAND

本文以东北西部内蒙东部草牧场防护林的主要组成树种之一的樟子松作为研究对象。分别不同立地区，设置标准地。普遍调查了樟子松在各种立地条件下的生长状况，运用灰色关联度分析方法，分析了樟子松生长与其立地条件之间的相互关系。结果表明：影响樟子松人工林生长的主要立地因子为ＰＨ值、容重、ＣａＣＯ３含量和有机质。

Another main tree species of shelterbelts on the pastureland in western partof northeast region and East part of Inner monglia of China-Pinus sylvestris var.mongolica Litv. was studied. The sample plot was set up according to thedifferent site regions.Growth condition of Pinus sylvestris var.mongolica Litv.was widely investigated.The relationship between it and its site was analysed bythe method of grey system. The results showed.the main factors affecting thegroWth of Pinus sylvestris var.mongolica Litv.plantation were pH-value,volumetric weight,CaCO3 content and organic matter.