一、墙体改革的必要性１保护耕地，维持自然生态环境的需要目前我国房屋建筑墙体材料中仍有近９０％的墙体为实心粘土砖，部分框架结构（约占总面积的３０％）填充墙及围护墙也还在使用实心粘土砖；大量的多层建筑还没有形成新的体系。农村建筑基本上是砖混结构。我国目... First, the necessity of wall reform 1. The need to protect arable land and maintain the natural ecological environment At present, there are still nearly 90% of wall materials in China’s building construction are solid clay bricks, and part of the frame structure (about 30 of the total area). %) Infill walls and retaining walls also use solid clay bricks; a large number of multistory buildings have not yet formed a new system. Rural buildings are basically brick-concrete structures. Our country...