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

Through field survey and analysis of past data, it was concluded that the regeneration situation of secondary natural forest in Helanshan mountain was that SpruceChinese pineDavid 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.