随着可持续发展战略逐渐被世界各国人民理解并大力提倡之后,环境问题已经成为世界各国共同关注的焦点问题。在我国,党和各族人民也十分重视环境问题,全民的环境意识正逐步提高,生态环境得到有效改善。自上世纪以来我国已先后实施了一系列林业生态工程,并且已经取得了相当可观的成就,例如,三北防护林、天然林保护、及退耕还林等。 With the sustainable development strategy being gradually understood and vigorously advocated by people all over the world, the environmental issue has become the focus of attention of all countries in the world. In our country, the party and people of all nationalities also attach great importance to environmental issues. The environmental awareness of the entire people is gradually increasing, and the ecological environment is effectively improved. Since the last century, China has successively implemented a series of forestry ecological projects and has made considerable achievements. For example, the Three North Shelterbelt, the protection of natural forests, and the conversion of farmland to forests have also been achieved.