Grass plays a great role. What can you do?

1. Grass can give people a fresh, cool and pleasant feeling and provide people with a pleasant and clean working and living environment. Green grass can purify the air like a vacuum cleaner, filter dust, reduce dust and reduce the bacterial content in the air.

Grass is still the best consumer of carbon dioxide. A well-grown lawn can absorb carbon dioxide 1 .5g per square meter1hour, and the carbon dioxide exhaled by each person per hour is about 38g, so if there is a lawn of 25m2, all the carbon dioxide exhaled by one person can be absorbed. It can be seen that grass plays an important role in purifying the air, which is also the reason why people feel the air is particularly fresh when standing on the prairie.

Grass can also reduce noise. A 20-meter-wide lawn can reduce noise by about 2 decibels. At the same time, grass can also increase the humidity of the air. It can change the water absorbed from the soil into steam and evaporate it into the atmosphere.

4、? Land is the most precious and irreplaceable resource for human survival and reproduction. Whether in parks, courtyards, flat land or sloping land, it is an effective measure to use lawns and ground cover plants to prevent the yellow sky from seeing the sky, conserve water and soil and protect the environment.

Extended data:

Morphological characteristics of grass

Dwarf herbs, usually forming dense clumps. Leaves are concentrated at the base, and leaf sheaths are densely fibrous near the ground; Ligule is very short, with short fiber hairs; The leaves are narrow and linear, often folded into needles, with a length of 1-6 cm and a width of 0.8- 1.2 mm. Sometimes there is sparse white villous on them, and the edges are thickened. The spike is solitary, terminal, with 1 node at the place where it is planted, more or less curved, (3-)5-8(- 10) cm long, and the edge of the spike axis is short or hairless. Spikelets lanceolate, 2.2-2.8 mm long;

Glumes membranous, equal to spikelets, sometimes purplish brown, awnless, with 1 pulse; The first glume is slightly asymmetrical, and the back of the second glume is flat; The lemma is membranous and transparent, about 65438 0.5 mm long, with an acuminate apex, pilose dorsal surface, -3 veins, and long white cilia near the edge of lateral veins; Palea membranous, lanceolate, slightly shorter than lemma, with 2 ridges, pilose on the ridges, and puberulent between lemmas. The flowering and fruiting period is from July to September.

References:

Baidu encyclopedia-grass