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作者对玛戈旦斯克省的兴安落叶松、西伯利亚云杉、欧洲松、偃松的季节生长进行了研究。松树为直播的人工林,云杉为栽植的野生苗,落叶松和偃松为天然林。在1975年的生长期,每隔五天测量一次,每个树种测3—6株树的顶稍、2—3个侧枝的长度,以及树高二分之一处的树干直径。同时每隔五天测量一次空气温度,地表温度和地下5—20厘米深的土温、空气湿度、降雨量和云量。
The authors studied the seasonal growth of Larix gmelinii, Siberian spruce, Pinus thunbergii and Pinus thunbergii in the Maggotinsk province. The pine is a direct-seeding plantation, the spruce is a planted wild seedling, and the larch and chinense are natural forests. Measured every five days during the 1975 growing season, with the apex of 3-6 trees per tree, the length of 2-3 lateral branches, and the trunk diameter of the tree at one-half the height. At the same time, air temperature, surface temperature and soil temperature, air humidity, rainfall and cloud cover of 5-20 cm deep underground are measured every five days.