毛主席纪念堂巍然屹立在天安门广场上,四周郁郁葱葱。挺拔的油松,圆锥形的雪松,硕果累累的山里红,枝叶丰满的绿篱,瑰丽多彩的花木,生长在一片绿色如茵的草坪上,使纪念堂更显得庄严肃穆。这些草坪(见题图)是由叶子纤细、低矮美观的野牛草(图1)组成的。均匀、省水、细如雾点的喷灌,源源不断地供给它们所需的水分。它那细长而生活力强的匍匐枝,覆盖了裸露的地面,浓绿稠密。在草坪铺建过程中,施工人员倾注了对毛主席的无限深情,铺栽后仅仅20多天, Chairman Mao Memorial Tower stands tall in Tiananmen Square, lush surrounded by. Upright pine, conical cedar, fruitful mountain red, foliage plump hedges, magnificent colorful flowers and trees, grow in a green lawn, so that the Memorial even more solemn. The lawn (see the title map) is composed of the slender, low-profile bison grass (Figure 1). Uniform, water-saving, sprinkling fine as a fog point, a steady supply of water they need. It’s slender and energetic stolons, covered with bare ground, thick and dense. In the process of paving the lawn, the construction workers devoted themselves to Chairman Mao’s infinite affection. After just 20 days of paving,