台风“山竹”对广州火炉山森林公园树木 的影响

通过调查火炉山森林公园521棵6a移栽龄和633棵 10a移栽龄树木在“山竹”台风中的受损情况,分析了移栽 龄、径级和树高对各树种抗风能力的影响。结果表明：1)移栽 龄的增加显著降低了树木的受损率;2)在6a移栽龄群落中, 立木的总受损率随着径级的增加而增加;在10a移栽龄群落 中,立木的总受损率随径级的增加而降低,说明根系的稳定有 利于提高树木的抗风性;3)6a和10a移栽龄树木受损率均随着 树高的增加而增加,这意味着树高不利于树木的抗风性;4)在 不抗风树种中,各径级和树高树木的损伤率无显著性差异

Impacts of Typhoon "Mangkhut" on Trees in Huolushan Forest Park, Guangzhou

By investigating the damage of 521 trees whose transplanting ages are less than 6a and of 633 trees whose transplanting ages are more than 10a in Huolushan Forest Park after typhoon "Mangkhut", the effects of transplanting ages, heights and diameter classes on the wind-resistant capacity of tree species were analyzed. The results showed that: 1) The increase of transplanting age significantly reduced the damage rates of trees. 2) The total damage rate of trees increased with the increase of diameter class in the 6-year-transplanted community, but decreased with increasing diameter in the 10-year-transplanted community. This implied that the stability of the root system is beneficial to improve the wind resistance of trees. 3) Damage rate of trees in 6-year-transplanted and 10-year-transplanted increased with the increase of tree height, which indicated that tree height is not conducive to the wind resistance of trees. 4) There were no significant differences of the damage rate among various diameter classes and tree heights for non-wind-resistant tree species.