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作者在苏联海拔600-800米的东萨彦岭中山地带、斯托尔巴国家禁伐区中进行了红松造林试验。本区以冷杉为优势树种,冷杉是红松天然更新的大敌。土壤为山地泰加壤土,土层薄,石砾多,土温很低,据1954-1958年的观察,乌饭树松林下7月份土壤20厘米深处的温度为10°,仅在1955年8月中旬短期达到了15°。由于土壤温度太低,红松苗木根系发育受到限制,根系只分布到20厘米深处。虽然采取了复盖
The authors conducted the Korean pine afforestation experiment in the Stäerba national banned zone in the eastern part of the Eastern Sayan Mountains in the Soviet Union at an elevation of 600-800 meters. This area is the dominant species of fir, fir is the enemy of the natural regeneration of Korean pine. According to the observation of 1954-1958, the temperature at the depth of 20 cm in the soil of the tussock pine in July was only 10 ° in 1955 Shortly after mid-August reached 15 °. Due to the soil temperature is too low, the development of Korean pine seedlings root system is limited, the root system is only distributed to 20 cm deep. Although taken cover