它东起黑龙江、西至新疆，全长8000公里，占国土总面积的42.4%，它守护我国西北、华北、东北的广大地区不再受风沙侵袭之苦，不再有水土流失之患。这座长城从1978年开始，到今年已经开建整整40年，这项伟大工程，还将继续努力!这就是建设范围、规模、时长，均创下世界生态工程之最的“绿色长城”——“三北”防护林工程。 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;2018年12月31日-2019年1月5日每天12:57分CCTV7六集连播!同时，网友可以通过农视网及央视网在线观看节目。 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;CCTV-7农业频道历经三年倾力打造的大型纪录片《绿色长城》元旦假期开播!为您勾勒亿万建设者用40个春秋写就的绿色赞歌，讲述一批批三北工程建设者远离尘世喧嚣，别离妻儿老小，在荒原上奋起抗争鏖战黄沙，上演了无数感天动地的追梦故事。 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;第一集_绿梦初心 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;第二集_众志成城 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;第三集_汇智攻坚 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;第四集_三北精神 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;第五集_金山银山 nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs; nbs;第六集_绿色奉献