草坪是城市绿地的重要组成部分,近年来发展迅速。但要充分发挥草坪的作用,获得致密平整而富有弹性的迷人草坪,常年的养护管理是非常重要的。可是,目前上海一些公共绿地中的草坪,退化现象严重,究其原因,是人为踩踏严重,土壤板结,表层土壤呈片状结构,表层松土层偏薄,松紧度偏高,容重偏大,因而造成土壤孔隙度小,透气性差,加之上海地下水位偏高,排水不畅,所以影响草坪植物的根系生长。通气和排水问题是主要矛盾,显然,这些就是造成草坪生长不良乃至退化的障碍因子。要改善现有草坪的生长不良状况,首先 Lawn is an important part of urban green space, developed rapidly in recent years. However, it is very important to give full play to the role of the lawn and obtain a dense and flexible grassy lawn. Perennial conservation and management are very important. However, the lawn degradation in some public green spaces in Shanghai is serious at present. The reason is that man-made stampede is serious, soil compaction, sheet-like structure of the surface soil, thin loose surface layer, high tightness, As a result, the soil porosity is low and the air permeability is poor. In addition, due to the high underground water level in Shanghai and poor drainage, the root growth of lawn plants is affected. Ventilation and drainage problems are the main contradictions, apparently, these are the obstacles that cause poor growth of lawn and even degradation. To improve the poor growth of existing lawn, first of all