Willow

Jasper makeup into a tree high, ten thousand green silk sashes hanging down. These two sentences vividly describe the posture of green willows. Willows have high ornamental value and a wide variety. In addition to the most common garden ornamental value, it also has good economic value. Because of its unique flexibility, wicker can make many handicrafts and daily necessities. Wood is usually used to make paper and artificial cotton

Scientists dealing with soil pollution have found that willow can well absorb pollutants in the soil and transform them. Therefore, it has a good pollution treatment function and has a certain purification effect on the soil

Poplar

Poplar trees are tall, straight and beautiful. They have good ornamental value. In many northern regions of China, poplar is selected as a street tree

In addition to the ornamental value, we have to mention the ecological protection function of poplar. The famous Three North Shelterbelt is mainly planted by poplar. The root system of poplar is very developed and can well lock in water and soil. It is precisely because of this characteristic that people have found the role of poplar in wind prevention and sand fixation. In addition, poplar can effectively degrade toluene and other harmful substances in soil, which plays a great role in soil remediation

Sunflower

Sunflower is very patient and easy to grow. In addition to the ornamental function, edible value and economic value we know on weekdays, the most shocking thing is its purification value. We only know that sunflower has low requirements for the growing soil, but we didn't expect that it has super purification function for the soil. Sunflower can absorb the harmful heavy metals in its soil, and then volatilize, purify and absorb them

Xiaobian wants to say that there are still many plants that can repair the soil, but human beings should not entrust their responsibilities to plants. The emission of pollutants in the soil comes from our industrial development. It is everyone's responsibility to protect soil resources, and the treatment of pollution itself is to reduce emissions< span>