摘要
本文报道了1984年在北京密云县古石峪进行的封山育林试验研究。五年中进行了三次复查,证明在植被盖度、灌木草本生物量、多样性指数方面都有增加。四类样地更新较好;两类阳坡干旱型样地更新不良,但引种栓皮栎获得成功。本研究还进行了山杨移根的试验。
Researches on the experimental closing of hillsides to promote afforestation were made by the Beijing Research Group on Secondary Forest in Gushiyu of Miyun County, Beijing in 1984. The concrete research method has been described in the issue N.2, 1987 of this journal.In the five-year sresearches, reexamination was taken three times. These reexaminations proved that the vegetation coverage, the biomass of shrubs and herbs and the diversity index had increased. Four kinds of plots regenerated well. Two kinds of plots on the drougt sunny slopes regenerated badly, but the baks introduced there have been growing well result. Besides, an experiment on transplanting the roots of aspen was made by the Research Group.
关键词
封山育林
山杨
北京
Beijing
Aspen
Afforestation
Secondary forest
