为加速我国生态环境建设，中央提出了生态建设十六字方针，即“退耕还林(草)，封山绿化，以粮代赈，个体承包”。这一方针的实施，调动了广大农民的积极性，大大推进了生态建设的整体进程。但从近几年的实践看，各地和有关部门对退耕还林比较重视，而对封山绿化的重要意义认识 In order to speed up the construction of our country’s ecological environment, the Central Government has proposed the 16-line guideline for ecological construction, namely “returning farmland to forest (grass), closing hillsides to afforestation, food substitution and individual contract”. The implementation of this guideline has mobilized the enthusiasm of the vast number of peasants and greatly promoted the overall process of ecological construction. However, from the practice in recent years, all localities and relevant departments pay more attention to returning farmland to forests, but they also recognize the importance of closing hillsides to afforestation