摘要
落叶松是我国东北林区的主要树种。冷杉、云杉是我国西南高海拔地区的主要原生树种。根据对美姑县采用冷杉与落叶松混交林调查表明:混交林高生长、直径生长、生物总量其各项生长指标均优于冷杉纯林或冷、云杉混交林。冷杉、落叶松混交林林区内物种的多样性和生物多样性也比冷杉纯林或冷杉、云杉混交林好。
Larch is the major planting tree variety in China＇s northeast forestry region while fir and spruce are staple protisst tree plant varieties in China＇s southwest hlgh-altitude region.According to the survey of the cross-planting of fir and larch in Meigu County,cross-planting forest is superior to pure fir forest or cross-planting forest of fir and spurce in the indexes of height growth,dlameter growth and biological gross substance.The diversities of plant and biological species are also superior to those of pure fir forest or cross-planting forest of fir and spruse.
出处
《西昌学院学报（自然科学版）》
2005年第3期24-26,共3页
Journal of Xichang University(Natural Science Edition)
关键词
冷云杉
落叶松
混交林
生物多样性
Fir and Spruce
Larch＇Cross-planting Forest
Diversity of Biological Species
