廊坊市地处京津中间,是华北平原的重要粮棉产区。由于历史上永定河、潮白河经常泛滥,淤积了大量沙丘,沙地面积达到300多万亩。每逢春秋两季风起沙扬,遮天蔽日,风沙危害严重,给农业生产造成了很大危害。解放后,当地党委和政府发动群众开展了大规模的植树造林活动,营造了永定河下游防风固沙林和农田林网,涌现出了王码、四百户等一批治沙造林的先进典型。1986年,我市列入首都周围绿化工程区和全国治沙重点以后,我市的造林规模和绿化水平又迈上了一个新的台阶,十年造林绿化取得了显著 Langfang is located in the middle of Beijing and Tianjin, is an important grain and cotton producing areas in the North China Plain. Due to the history of the Yongding River, Chaobai River often flooded, silting a large number of sand dunes, sandy area reached 3000000 acres. Whenever the spring and autumn monsoons rise and fall, sheltering the sun and damaging the sandstorms severely endangers the agricultural production. After the liberation, the local party committees and governments mobilized the masses to carry out large-scale tree planting and afforestation activities and create a windbreak and sand-fixation forest and a farmland forest net in the lower reaches of the Yongding River. A series of advanced models of sand control and afforestation such as Wang code and 400 were popularized. In 1986, after the city was included in the greening project area around the capital and the focus of national desertification control, the city’s scale of afforestation and greening have reached a new level. The ten-year afforestation has achieved remarkable results