森林是国家的宝贵资源,它与国计民生、工农牧业生产和城乡建设关系极为密切。在实现四个现代化的历史进程中,持久地、大规模地开展植树造林,加速祖国绿化,是有益当代,造福后代的伟大事业,是一项重大的战略任务。我国的森林在旧社会受到了严重破坏,是世界上少林国家之一,解放后,虽然开展了大规模的封山育林、造林,取得一定成绩,但是,由于乱调种苗,未注意培育良种壮苗,致使造林成活率低,并有相当大的一部分林木变成了成林不成材的“小老树”。 The forest is a precious resource for the country. It has a close relationship with the national economy and the people’s livelihood, animal husbandry, animal husbandry and urban-rural construction. In the course of realizing the four modernizations, it is a major strategic task to carry out afforestation and plantation on a long-term and large-scale afforestation and to accelerate the greening of the motherland. This is a great undertaking beneficial to the present and the benefit of future generations. The forest in our country was severely damaged in the old society. It is one of the Shaolin countries in the world. After the liberation, although a large-scale afforestation and afforestation was carried out on a large scale, some achievements were made. However, due to the disorderly seedlings, , Resulting in low survival rate of afforestation, and a considerable part of the forest has become an unsuccessful forest “little old tree.”