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北京的冬季干燥多风、尘沙很大,冬季绿化意义重大。北京冬季气候寒冷,草皮绿化植物中,多数是选用从国外引进的冷季型品种草地早熟禾,但如果没有充足的水分,也会有4～5个月的枯黄期。校园绿化,尤其是中小学,可绿化面积多,但经费紧张,无法投入大额绿化资金,致使很多可绿化土地裸露,冬季户外运动时,扬尘问题严重。奥运将至,北京需要绿色,校园需要绿色,中小学需要切实可行的绿化方式。于是我们决定在这个问题上进行研究,让校园一年四季都绿起来。同时,我们希望能够找到一种可行性强的绿化方式,让学生能亲身参与,受到教育。
The winter season in Beijing is windy and dusty. The winter greening is of great significance. Beijing has a cold winter climate. Most of the turf greening plants use the cold-season bluegrass introduced from abroad. However, if there is not enough water, it will have a brown period of 4 to 5 months. Campus greening, especially in primary and secondary schools, has a lot of green areas. However, the funding is tight, and it is impossible to invest large sums of greenery funds. As a result, many green lands can be exposed. In winter, outdoor sports can cause serious dust problems. The Olympic Games is approaching, Beijing needs green, the campus needs green, and primary and secondary schools need practical green methods. So we decided to conduct research on this issue and make the campus green all year round. At the same time, we hope to find a greening method with strong feasibility so that students can participate in and receive education.