中德合作宁夏贺兰山封山育林育草项目区天然次生林更新调查

A Survey of Regeneration of Secondary Natural Forest in Helanshan Mountain in Ningxia

通过野外调查和对以往资料的分析研究认为 ,贺兰山天然次生林更新状况青海云杉 >油松 >山杨 ,影响贺兰山天然次生林天然更新的主导因子是人为作用。封山育林是贺兰山最有效的促进天然更新的措施。特别指出应妥善解决好封山育林所带来的林牧矛盾 。

Through field survey and analysis of past data, it was concluded that the regeneration situation of secondary natural forest in Helanshan mountain was that Spruce>Chinese pine>David puplar. The main factors affecting the regeneration of the secondary natural forest in Helanshan mountain was human action. The best measure to promote natural regeneration was forest conservation. It was put forward specially that the contradiction between forestry and animal husbandry brought about by forest conservation should be resolved properly and the forest conservation should be strengthened further.