首都周围绿化工程涉及廊坊市一区二市六县,1987年开始全面实施。在各级党委和政府的领导下,经过全市人民的共同努力,到1994年共完成工程造林68万亩,使全市森林覆盖率平均每年增长一个百分点。全市初步建成平原综合防护林体系。他们坚持因地制宜、因害设防的原则,突出生态、经济、社会三大效益,与当地经济发展紧密结合,得到了各级领导和广大群众的支持。全市按河系流域规划了永定河下游、潮白河下游和黑龙港地区三大防护林重点工程,形成一个完整的防护林体系。在布局上,于永定河、潮白河、北运河、千里堤四大河系和京开、京哈、津保、廊大四大公路两侧,营造20—40米宽的防护林带,形成全市平原综合防护林体系的骨架;以方田为基 The greening project around the capital involves one district, two cities and six counties in Langfang City and was fully implemented in 1987. Under the leadership of party committees and governments at all levels and through the concerted efforts of the people in the city, a total of 68 million mu of afforestation has been completed by 1994, bringing the city’s forest coverage rate to an average of one percentage point annually. The city initially built a plain integrated shelterbelt system. They adhere to the principle of adjusting measures to local conditions and fortifications and highlight three major ecological, economic and social benefits and are closely integrated with the local economic development and are supported by leaders at all levels and the general public. According to the plan of the river basin in the city, the lower reaches of the Yongding River, the lower reaches of Chaobaihe and Heilonggang three shelterbelt key projects to form a complete shelterbelt system. In layout, Yongding River, Chaobai River, North Canal, Trinidad four major river system and Beijing open, Jingha, Tianjin insurance, Gallery four large roads on both sides to create a 20-40 meters wide shelterbelts, the formation of the city plains Comprehensive framework of the shelter forest skeleton; Fang Tian as the base