燕北山地不同海拔对沙地云杉幼树生长的影响  

Effects of Different Altitudes on the Growth of Picea mongolica Saplings in the Northern Yanshan Mountains

作　　者：于洪波 孟庆丽 惠建平 张新宇 杨旭亮 程瑞春 YU Hongbo;MENG Qingli;HUI Jianping;ZHANG Xinyu;YANG Xuliang;CHENG Ruichun(Wangyedian Experimental Forest Farm,Kalaqinqi,Meilin,Inner Mongolia,024423;Chifeng Forestry Research Institute,Chifeng,Inner Mongolia,024005)

机构地区：[1]喀喇沁旗旺业甸实验林场,内蒙古美林024423 [2]赤峰市林业科学研究所,内蒙古赤峰024005

出　　处：《林业勘查设计》2024年第5期84-89,共6页Forest Investigation Design

摘　　要：沙地云杉(Picea mongolica)是内蒙古乡土树种,是优良的园林绿化、治沙造林、荒山造林树种。目前,赤峰市沙地云杉人工林总体上处于中幼龄林阶段。采用样带调查法,调查了喀喇沁旗旺业甸实验林场燕山北麓山地东北坡沙地云杉人工林幼树生长情况,结果表明,在半阴坡全坡面,以3.5年生(S_(1-1-1.5))实生容器苗雨季造林,海拔1400 m以下的地块保存率极显著高于1400 m以上地块,随着海拔升高,幼树平均树高呈下降趋势,造林5~8 a后,逐渐达到差异显著性水平,平均冠幅差异不显著。Picea mongolica is an indigenous species in Inner Mongolia and an excellent choice for landscaping,sand control,and afforestation in barren mountains.Currently,the artificial forests of Picea mongolica in Chifeng are predominantly in their young and middle-aged stages.Using the transect survey method,this study investigated the growth of Picea mongolica saplings in the artificial forest on the northeast slope of the northern Yanshan Mountains in the Wangyedian Experimental Forest Farm,Kalaqin Qi.The results indicate that on semi-shaded slopes,the survival rate of 3.5-year-old seedling container saplings planted during the rainy season is significantly higher at altitudes below 1400 m compared to those above 1400 m.As altitude increases,the average height of the saplings shows a decreasing trend,reaching significant differences after 5 to 8 years of afforestation.The differences in average crown width were not significant.

关 键 词：沙地云杉 海拔高度 燕北山地 

分 类 号：S791.18[农业科学—林木遗传育种]