CAJ | 학술논문

根据气象资料和诸多研究结果,从沙地樟子松自然更新过程以及原产地气象因子的特征等方面进一步分析了沙地樟子松天然更新的影响因素,结果表明：沙地樟子松当年4～5月自然落种的种子是实现自然更新的物质基础;降雪日数、积雪日数、5～7月相对湿度、5～7月平均温度等是影响沙地樟子松自然更新的主要因素。其中,5～7月相对湿度、5～7月平均温度变化特征是影响沙地樟子松自然落种的种子萌发及其幼苗生长的关键因素,而降雪日数、积雪日数是影响并决定当年幼苗安全越冬的保证。
근거기상자료화제다연구결과,종사지장자송자연경신과정이급원산지기상인자적특정등방면진일보분석료사지장자송천연경신적영향인소,결과표명：사지장자송당년4～5월자연락충적충자시실현자연경신적물질기출;강설일수、적설일수、5～7월상대습도、5～7월평균온도등시영향사지장자송자연경신적주요인소。기중,5～7월상대습도、5～7월평균온도변화특정시영향사지장자송자연락충적충자맹발급기유묘생장적관건인소,이강설일수、적설일수시영향병결정당년유묘안전월동적보증。
Based on the meteorological data and many research achievements, the factors influencing natural regen- eration of Pinus sylvestris var. mongolica in sandy land have been analyzed on the aspects of the process of natural regeneration and the features of meteorological factors in origin. The results show that the naturally falling seeds from April to May are the material base for realizing the natural regeneration of Pinus sylvestris var. mongolica. The snowfall days, the snow cover days, the relative humidity fi'om May to July and the average temperature from May to July are the main factors influencing the natural regeneration of Pinus sylvestris var. mongolica. Among them, the relative humidity from May to July and the average temperature from May to July are the key factors influencing the germination of the naturally falling seeds and the growth of seedlins of Pinus sylvestris var. mongolica. The snowfall days and snow cover days can influence the current year seedlings to overwinter safely.