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Effects of typhoon Mangkhut on a monsoon evergreen broad leaved forest community in Dinghushan nature reserve, lower subtropical China
Frontiers in Ecology and Evolution ( IF 3 ) Pub Date : 2021-05-04 , DOI: 10.3389/fevo.2021.692155
Yuelin Li , Brian Mwangi , Shun Zhou , Shizhong Liu , Qianmei Zhang , Juxiu Liu , Guowei Chu , Xuli Tang , Deqiang Zhang , Shimin Wei , Zhiyang Lie , Ting Wu , Chen Wang , Guangfei Yang , Ze Meng

Compared to 2015, the difference between 2015 and 2018, only the tree height decreased significantly as a result of the typhoon. Therefore, we emphasized on the data collected in 2018 and 2020 in our analysis. The aim was to establish a scientific basis for the restoration of natural forests that have the ability to withstand strong weather phenomena such as typhoons. The results showed that trees that have a DBH of less than 5cm and a height of less than 2m are more prone to damage during a severe weather events. It is however worrying that in 2020, about 83% of all trees have a DBH of less than 5cm and an average height of 3.8m making up a large proportion of trees that could be destroyed or damaged if another storm occurred of similar or greater magnitude than the one that hit the region in 2018 especially since we established that taller trees having a height of greater than 20m and a DBH of more than 20cm faced minimal damage from typhoon Mangkhut. A correlation between the number of trees per hectare and the DBH showed a trend line that underlines the vulnerability of the tree population in the forest to the whims of the weather. The correlation between DBH and tree height illustrated that a tall tree will also have a larger DBH and will therefore be able to hold its ground when nature comes with full force like it did in 2018. Also, of interest was the forests remarkable ability to bounce back because, when the total above ground dry weight is compared between the year 2018 and the year 2020, the forest shows in increase in biomass. It is therefore of utmost importance that strategies be put in place to protect this ecosystem by employing the use of natural forests that have great resiliency against typhoons and construction of artificial forests that act as a buffer against dangerous weather.

中文翻译:

亚热带鼎湖山自然保护区的台风山竹对季风常绿阔叶林群落的影响

与2015年相比,2015年和2018年之间的差异是由于台风,树木的高度显着下降。因此,我们在分析中强调了2018年和2020年收集的数据。目的是为恢复具有抵御台风等强烈天气现象的能力的天然林建立科学的基础。结果表明,DBH小于5cm且高度小于2m的树木在恶劣天气事件中更容易受到破坏。然而令人担忧的是,到2020年,大约83%的树木的DBH小于5厘米,平均高度为3。如果另一场风暴的发生与2018年袭击该地区的风暴相似或更大,那么8m可能毁坏或损坏树木的很大一部分,特别是因为我们确定了高大的树木的高度大于20m,DBH为超过20厘米的山竹遭受了最小的损害。每公顷树木数量与DBH之间的相关性显示出一条趋势线,该趋势线突显了森林中树木种群对天气异想天开的脆弱性。DBH与树高之间的相关性说明,高大的树木也将具有更大的DBH,因此,当自然力十足时(如2018年),它将能够站稳脚跟。此外,令人感兴趣的是森林具有出色的反弹能力回来,因为 当比较2018年和2020年之间的地上总干重时,森林显示出生物量增加。因此,极为重要的是,应采取策略来保护这一生态系统,方法是使用对台风具有极大适应力的天然林,并建造能够抵御危险天气的人工林。
更新日期:2021-05-04
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