The new variety of non-flocculent poplar can be used as the main tree species in fast-growing and high-yield forest, short-period raw material forest, road protection and bank protection forest, windbreak and sand fixation forest, soil and water conservation forest, green passage and farmland forest network construction. Under the condition of intensive cultivation and fertilizer and water management, the annual growth of DBH of "Zhou Xiong 1" poplar can reach 6-8 cm, and it can be put on the market in 6-8 years after planting.
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Poplar is a fast-growing tall tree species and the main tree species of farmland shelterbelt, which is suitable for growing in the vast plains and gullies of Henan Province.
Wang Wansen, chief engineer of the Provincial Forestry Bureau, said that poplar can be said to be the real "main planting tree species" in the plain area, the main component tree species of forest resources in the province, and the main tree species supporting the growth and consumption of forest resources and the whole wood processing industry, especially wood-based panels and wood pulp papermaking. Moreover, poplar has fast growth speed, high photosynthesis efficiency and strong carbon absorption capacity, and is an ecological tree species with strong carbon sink function.
With the aggravation of "poplar powder" pollution and the continuous downturn of wood prices in recent years, the poplar planting area has fallen sharply. According to the inventory of forest resources in 20 18, the proportion of poplar planting area in the whole province decreased to 15%, and the proportion of stock in Yang Shulin decreased from 43% in 20 13 to 30.3%.
Poplar will continue to play an important role in improving the ecological environment in plain areas and ensuring stable grain production. Especially for farmland shelterbelts, poplar can not be ignored, because it is tall and straight and has great protection benefits.