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京包 包兰铁路两侧防护林体系建设工程,在1978年国家批准”三北”防护林体系建设时,就被列为重点项目.近二十年来,经过沿线广大干部群众的艰苦努力,铁路两侧防护林建设取得了一定成绩,生态环境有了初步改观.据统计,1978—1995年,我区京包—包兰铁路两侧防护林造林保存面积达119.3万亩,封山(沙)育林25万亩,四旁植树折合面积22万亩,森林覆盖率由建设前的4.3%提高到11.0%.在一些建设好的地区,带网片相结合的防护林体系已初具规模,生态环境明显改善,林业经
The construction of the shelterbelt system on both sides of the Beijing-Baotou-Lanzhou Railway was listed as a key project when the state approved the construction of the “Three Norths” shelterbelt system in 1978. In the past two decades, with the hard work of the cadres and masses along the railway, According to statistics, in 1978-1995, the reserve area of shelterbelts on both sides of Beijing-Bao-Bao-Lan Railway in the district reached 119.3 hectares and the sealing hill (sand) 250,000 hectares of forest for afforestation , Surrounded by trees on both sides of the equivalent area of 22 hectares, forest coverage from the pre-construction 4.3% to 11.0% .In some well-constructed areas, with a combination of protective shelterbelts has begun to take shape, significantly improved the ecological environment, forestry