林业是国民经济的重要组成部份,发展林业不仅是提供木材和林付产品,更重要的是森林资源具有保持水土、涵养水源、调节气候、美化环境、净化空气等功能,能为社会发展、人类生存和工农业生产提供良好的生 Forestry is an important part of the national economy. To develop forestry is not only to provide wood and forest products, but more importantly, forest resources have the functions of water and soil conservation, water conservation, climate regulation, landscaping and air purification. They can contribute to social development, Human survival and industrial and agricultural production to provide a good student