摘要
本文通过对卢龙、抚宁两县油松天然更新种源、种子繁殖特性、油松封山育林地区天然更新状况的调查和定位试验研究,论证了在燕山低山丘陵开展油松封山育林、恢复和扩大油松资源的可行性。认为在有油松母树的地段,应大力开展封山育林。
A survey and on-site experiments on Chinese pine (Pinus tabulae-formis Carr.) natural regeneration, provenance and reproductive capacity were made in the regions closed to human activities in Lulong and Funing counties .The feasibility in recovering and enlarging Chinese pine forest in hilly area of Yanshan mountain through closing to human activities was lonfirmed.Therefore , it is recommended to extend this measure in the regions where Chinese pine seed-bearers exist.
关键词
封山育林
油松
种子繁殖
lower hilly land
Chinese pine
natural regeneration
closed forest
