绿化对现代生活的作用

在线客服

联系我们
雷竞技竞猜市誉嘉雷竞技工程有限公司
联系人:张经理
电话:13503222231、0312-8920001
地址:河北省雷竞技竞猜市新市区
网址:http://www.yjlvhua.com
专营:苗木花卉、承揽雷竞技工程
当前位置 >> 首页 >>新闻中心 >> 雷竞技-雷竞技竞猜-雷竞技官网DOTA2,LOL,CSGO最佳电竞赛事竞猜

1净化空气 人口和工业密集的城区,每天氧气的消耗量和二氧化碳的排放量,主要靠植物补偿来维持生态平衡。植物光合作用所制造的氧比呼吸作用所消耗的氧多20倍,所以森林和绿色植物是地球上天然的吸碳制氧工厂。有资料显示,许多工业城市每年1hm2降尘量为5000-10000kg。据专家测算,1hm2树林1年可吸收各种灰尘达300-900kg,绿地减尘率达37.1%-60%。植物对许多有害气体都有一定的吸收净化作用。据测定,1hm2柳杉每年可吸收二氧化硫720kg,1kg臭椿干叶能吸硫330kg。 2净化水体 许多水生植物和沼生植物对净化污水有明显作用。草地可以大量滞留许多有害金属,可以吸收地表污物,很多树木可以吸收水中的溶解质,减少水中的细菌含量。 3净化土壤 植物的地下根系能吸收大量有害物质,而且有净化土壤的能力。如有的植物根系分泌物能使进入土壤的大肠杆菌死亡。有植物根系分布在土壤好气性细菌比没有的多几百倍至几千倍,能促使土壤中有机物迅速无机化,既净化了土壤,又增加了肥力。草坪是城市土壤净化的重要地被物,裸露的土地种植草坪后,不仅可改善地上环境卫生,而且能改善地下土壤卫生条件。 4杀菌作用 许多植物的芽、叶和花粉能分泌挥发性的物质,能杀死细菌、真菌和原生动物。 1 air purification and industrial intensive urban areas, the daily consumption of oxygen and carbon dioxide emissions, mainly rely on plant compensation to maintain the ecological balance. Plant photosynthesis produces 20 times more oxygen than respiration, so forests and green plants are the natural carbon - absorbing and oxygen - making plant on the earth. Data show that many industrial cities have a 1hm2 dust reduction of 5000-10000kg a year. According to experts, 1hm2 trees can absorb a variety of dust for 1 years to 300-900kg, and the dust reduction rate of green space reaches 37.1%-60%. Plants have a certain absorption and purification effect on many harmful gases. According to the determination of Cryptomeria 1hm2 per year of sulfur dioxide absorption of 720kg, 1kg can absorb sulfur 330kg dry leaves of Ailanthus altissima. 2 a lot of aquatic plants and biogas plants have obvious effect on purifying sewage. Grassland can retain a lot of harmful metals. It can absorb surface pollutants. Many trees can absorb dissolved substances in water and reduce bacterial content in water. 3 the underground roots of soil plants can absorb a large amount of harmful substances and have the ability to clean the soil. For example, some plant root exudates can cause the death of Escherichia coli into the soil. Plant root distribution in soil aerobic bacteria than a few hundred times not to thousands of times, can promote soil organic matter rapidly inorganic soil, purifying, and increased fertility. Lawn is an important part of urban soil purification. Bare land can not only improve the sanitation of the aboveground environment, but also improve the sanitary conditions of underground soil after planting lawn. 4 bactericidal action of the buds, leaves and pollen of many plants to secrete volatile substances that kill bacteria, fungi and protozoa.

关键字:雷竞技