河北省塞罕坝机械林场自1962年建场以来,两代人在生产力水平相对较低的条件下,克服了人类难以想象的困难,在塞外高原上建起了一道为首都阻沙源、为天津保水源、为河北增资源、为当地拓财源的绿色生态屏障。如今,塞罕坝机械林场拥有森林110万亩,森林覆盖 Since its establishment in 1962, two generations of people at Saihanba Machinery Forest Farm in Hebei Province have overcome the unimaginable difficulties of humankind under the relatively low level of productivity. They have set up a captive sand source for the capital in the Great Wall outside the Great Wall, Water sources in Tianjin, Hebei, by increasing resources for the local extension of the green source of ecological barrier. Today, Saihanba Machinery Forest Farm has 1.1 million mu of forest and is covered in forest