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草坪植物是园林绿化中极为重要的组成部分。它可以保持水土,改善气候,净化空气,给人以美的享受。作为北方种植的优良草坪草,必须具备:草色美,绿草期长,再生力强,耐寒,耐早,耐践踏的特性,以及有较高的观赏价值和实用意义。据史书记载,秦汉时甘肃曾是“大山乔木连跨数郡,万里鳞集,茂林阴翳”的绿海。到清朝兰州仍是古树参天,清流遍地的秀丽风光。解放前由于森林、草原屡遭破坏,气候干旱,植被覆盖度逐年降低,地面裸露,引起土壤风蚀沙化,肥力减退,植被稀少。解放后甘肃省城市园林绿化逐步受到重视,栽植风景树,种植花卉,配置草地,但与发达的城市相比,差距甚大。仅以草地面论,
Lawn plants are an extremely important part of landscaping. It can maintain the soil and water, improve the climate, purify the air and give people enjoyment. As a good lawn grass planted in the north, it must have the following characteristics: beautiful grass color, long green grass period, strong regenerative ability, cold resistance, early resistance and trampling resistance, as well as high ornamental value and practical significance. According to historical records, when Qin and Han dynasties, Gansu once was “the green sea of the mountainous arbors with even counties, thousands of miles of scales, and Maolin yin yang”. To the Qing Dynasty Lanzhou is still towering old trees, clean and beautiful scenery everywhere. Before the liberation of forests, grasslands repeatedly damaged, arid climate, vegetation coverage decreased year by year, exposed the ground, causing soil erosion and desertification, fertility decline, scarce vegetation. After the liberation of Gansu Province, urban landscaping gradually gained attention, planting landscape trees, planting flowers, grassland configuration, but compared with the developed cities, the gap is very large. Only on the grass surface theory,