摘要
苗期合理播种密度是改善苗木质量的关键。育苗密度是直接调节因子,它是控制群体生长及苗木生长对微环境要求的标志。1981～1984年在黑龙江省绥棱县苗圃,研究和分析了兴安落叶松(Larix olgensis Henry)、长白落叶松(Larix gmelini Rupr.)和华北落叶松(Larix principis-rupprechtii Mayr)
Studies on the seedling quality of Larix gmelini, L. olgensis and L. principis and ecological factors during the growing season were carried out in Shuiling Nursery, Hei long jiang Province for 4 years consecutively. In the population studies and analysis on light requirement of root content of dry matter and nutrient content of leaves were conducted. The relationship between population structure and quality of seedlings has been made clear. The scientific techniguc for breeding Larch seedlings of high quality has been put forward.
出处
《林业科学研究》
CSCD
北大核心
1992年第6期727-730,共4页
Forest Research
关键词
落叶松
育苗
密度
生长
Larch population structure density of seedlings
