昔日荒山秃岭今朝松绿满山为了加速荒山绿化，１９８７年北京开始了飞播作业造林工作。经１０载努力，成效喜人。七道梁播区，地处汤白河东侧，隶属北京市怀柔县长哨营乡。一九八七年以前，这里是荒山秃岭，水土流失严重。为了加快荒山绿化的步伐，一九八七年，进行飞机播... Bald Ridge in the past past the current Songlin Green Manshan In order to accelerate the afforestation, in 1987 Beijing began aerial planting afforestation work. After 10 hard efforts, the effect is gratifying. Seven beam broadcast area, located in the east of Tangbaihe, under the banner of Huairou County, Beijing Camp. Before 1987, there was a bald ridge of barren hills, with serious soil erosion. In order to speed up the pace of barren hills and green lands, in 1987, airplanes were broadcast ...