一、基本情况我省地处华北平原，建筑材料资源较为丰富，但是，近几年随着基本建设规模的扩大和工业的发展，每年各种占地近15万亩（相当于一个县），而人口却以80万（相当于一个县）的速度增加。据统计，我省近年来每年建筑开竣工面积约为4000万平方米，其中住宅面积约为800万 First, the basic situation Our province is located in the North China Plain, building materials resources are more abundant, but in recent years, with the expansion of the scale of basic construction and industrial development, a variety of each year covers an area of ​​nearly 15 acres (equivalent to a county), The population has increased at a rate of 800,000 (equivalent to one county). According to statistics, in recent years, the province has built about 40 million square meters of buildings each year, of which about 8 million are residential buildings.