红松针叶形态地理变异的研究

对红松分布的几个代表性样点的新枝叶长、叶宽和针叶束数进行比较研究.结果可见,纬度较低,同时温度也稍高的松原针叶最长,但是新枝平均束数很低;伊春红松针叶叶长相对较低,但是叶宽和束数较大;延边红松针叶虽然体积和宽度都不大,但针叶束数多;哈尔滨和尚志处于红松分布的中间地带,红松群落和大城市的距离比较近,易受城市环境影响.

Research on geographic variation of needle morphology in Pinus koraiensis

On the distribution of Pinus koraiensis several representative samples,leaf length,leaf width and the bundle number were comparative studied.The results show that,with lower latitude and higher temperature,Songyuan had the longest leaf,but very low average of bundle number,in the maximum latitudes,leaf length of Yichun was relatively low,but the leaf width and bundle number were maximum.In higher latitudes,climate is colder,under this condition,shorter and wider needles were tend to grew.Yanbian is located in the most eastern,water condition was better,needles were thinner,but more conducive to lateral buds,and a greater number of bundle.In the middle of the distribution of Pinus koraiensis in Harbin and Shangzhi,the distance of the pine community and the city is relatively close,which is easy to influences by urban environment.