【摘要】 “近自然”林业的发展和城市“近自然森林”建设对乡土树种提出了迫切的要求。以具有优良生态效益和景观效益的乡土树种小果冬青Ilex micrococca和毛枝冬青I.buergeri为例,在对其分布调查研究的基础上,进行了育苗及栽培试验,并提出了2种冬青的生物生态学特征、观赏价值以及采种、育苗和造林等技术措施。2种冬青当年采集的果实贮藏至翌年3月,经处理后,小果冬青可直接播种,发芽率为12.0%。而毛枝冬青种子具有较长休眠期,处理后贮藏至10月播种,发芽率为9.8%。基于2种冬青在自然分布群落中的地位,造林以混交林为宜,采用1年生小果冬青幼苗造林后第3年,平均树高2.5 m,胸径1.2 cm,而采用1年生毛枝冬青幼苗造林后第6年,平均树高4.1 m,树干基部直径12.0 cm。除山地造林外,这2种冬青还可以应用于城市绿化建设中。图2参10更多还原

【Abstract】 The demand for native species had been enhanced with the development of near-nature forestry and the construction of urban approx-natural forest.Two native species,Ilex micrococca and I.buergeri were selected due to their excellently ecological and decorative effects.Based on the survey of their distribution and biological characteristics,the technical measures of collecting seeds,cultivating seedlings and forestation were put forward.The fruits of the two species collected in October should be stored until next March.Seeds of I.micrococca could be sowed after special treatments,but seeds of I.buergeri should be stored until October or next March to be sowed.Germination ratio of the two species was 12.0 % and 9.8 % respectively.Breast-diameter and height of I.micrococca were 1.2 cm and 2.5 m respectively three years after forestation.However,diameter at the base and height of I.buergeri were 12.0 cm and 4.1 m respectively six years after forestation.It is suggested that the two species should be used for not only the forestation but also the urban landscaping.[Ch,2 fig.10 ref.]更多还原