The impacts of Betula platyphylla on Carex pediformis and other main understory herbages pants within secondary forest of Daxinganling mountatins
大兴安岭次生林白桦对林下日阴菅及其它主要草本植物的影响

To inverstigate the impacts of overstory dominant tree species on understory herbaceous plants,a field experiments was carried out in growing season in 1997.Mountane secondary Betula platyphylla forests in the territory of Erguna,Hulunbuir League of Inner Mongolia autonomous region of China were chosen for the experiment.The region happened to be within the forest steppe ecotone of Da Xingan Ling Mountains and within the climatically transitional zone from cold temperate to intermediate temperate belt...