The prevention of wind damage to trees

In windy areas, trees often suffer from wind damage, showing off-centre and eccentricity. Defective crowns can cause difficulty in pruning trees and affect the function of trees. Eccentric trees are vulnerable to freezing injury and sunburn, affecting the normal development of trees. The strong winds in the winter and early spring in the north make it easy for the trees to die and die. In the spring dry season, the young shoots are often blown and the flowering period is shortened, which is not conducive to pollination and fertilization. Trees in coastal areas in summer and autumn are often harmed by typhoons, causing damage to branches and leaves, broken branches, and even blown trees. Under normal circumstances, shallow roots, high stems, crowns, and dense leaf species such as hedgehogs and poplars have weak wind resistance; large medullary cores, underdeveloped mechanical tissues, and rapidly growing tree species with dense foliage have severe wind damage. When transplanting seedlings, especially large trees, if the root plate is small, the tree is large and vulnerable to wind. In the process of tree planting, if the plant spacing is too dense, the root development is not good, and if the care is not followed, the wind damage will be significantly enhanced; if the tree pit is too small, the trees will not be able to stretch due to the root system, the development will be poor, and the center of gravity will be unstable. It will also lead to increased wind damage. For street trees, if the wind direction is parallel to the street, the wind gathers into the air outlet, the wind pressure increases, and wind damage increases. In addition, wind damage can also be affected by the soil texture. If the soil is sandy or gravel soil, the soil structure is poor and the soil layer is thin, resulting in poor wind resistance. How to prevent and mitigate wind hazards? First of all, when planting designs, care should be taken to select wind-resistant species in places where winds, winds, etc. are prone to wind damage, and densely planted with low-drying low-crown plastic. In addition, shelter forests and gardens should be set up to reduce wind speed and avoid losses in accordance with local characteristics. In terms of management measures, corresponding wind prevention measures should be taken according to the actual local conditions, such as removing water accumulation, improving the soil texture at the planting site, cultivating strong roots and good seedlings, adopting large holes for soil replacement, appropriate deep planting, reasonable pruning and controlling trees, and planting. The pillars should be erected in time, the trees with many results should be suspended early or the top branches should be dropped, and wind barriers should be set up for young trees and valuable trees. For trees that are damaged by strong winds, the broken branches, damaged tree crowns, or fallen trees must be maintained according to the damage situation. First of all, it is necessary to wind up the trees in a timely manner to support the right posture. The soil is a taro shape, and some or most of the branches are repaired and the pillars are erected. The branches should be lifted up against the broken branches, and the base should be tied tightly, or be coated with hormone ointment to promote its healing, and the fertilizer and water management should be strengthened to promote the restoration of tree vigor. Those who are difficult to repair should be eliminated, and new strains should be replanted in the autumn.

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