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草皮的作用在城市的公园、植物园、广场、运动场,工厂及住宅区的花坛、隙地,铁路两侧,公路交叉路口以及水库、河岸的坡地,合理铺植草皮,既能掩盖裸露地面,减少地表径流,防止水土流失,又能减弱日光辐射,降低地面温度,增加空气湿度,吸附灰尘,净化空气.据测定,草坪比非绿化地带平均辐射温度低14℃;相对湿度平均高5.5.—18%;铺草皮的足球场比不铺草皮的足球场,空气中的含尘量可减少2/3;草皮在光合作用中可吸收二氧化碳,释放氧气,有的草可吸收有毒气体,如每公斤干的羊胡子草,可吸收二氧化硫4.5克.草皮不仅能美化环境,又能为广大青少年提供活动场所.为此,世界上发达国家,大量栽种草皮,并与花卉、树木有机地结合起来,形成各种绿地.我国各大城市也都十分重视草皮的培育,如杭州西湖的花港公园和柳浪闻莺公园的草皮面积就占整个陆地面积的40%.草皮的主要种类草皮选用什么草种,要根据当地土壤、气侯条件,草皮用途,科学选用.如东北、内蒙地区,气侯寒冷,可以种植耐寒的早熟禾(Poa angustifolia);北京和华北地区种
The role of turf In the city’s parks, botanical gardens, squares, playgrounds, factories and residential areas of the flower beds, clearance, both sides of the railway, road junctions and reservoirs, river banks of the slope, the rational laying of turf, both cover the bare ground, reducing the surface Runoff to prevent soil erosion, but also weaken the daylight radiation, reduce the ground temperature, increase the air humidity, dust adsorption, air purification.According to the determination of turf than the non-green belt average radiant temperature 14 ℃; average relative humidity 5.5.-18% ; Sod in the football field than the stadium without sod, dust in the air can be reduced by 2/3; sod can absorb carbon dioxide in photosynthesis, the release of oxygen, and some grass can absorb toxic gases, such as per kilogram of dry Of the sheep mustard grass, sulfur dioxide can absorb 4.5 grams of grass. Turf not only beautify the environment, but also for the majority of young people to provide venues .Therefore, the developed countries in the world, a large number of planting turf, and flowers, trees organically combine to form each The green areas in China’s major cities also attach great importance to the cultivation of turf, such as Hangzhou West Lake Huagang Park and Liu Lang Wenying Park, the sod area accounts for 40% of the entire land area. The main choice of what kind of turf grass seed, according to local soil and climate conditions, turf uses, scientific choice as the northeast, Inner Mongolia, cold climate, you can grow hardy annual bluegrass (Poa angustifolia);. Beijing and North China species