Problems and Countermeasures of Scientific Protection of Rare and Endangered Relic Plant Glyptostrobus pensilis.Forest—Taking Zhuzhou Island Glyptostrobus pensilis.Reserve in Doumen,Zhuhai as an Example
Based on the main data of the Glyptostrobuspensilis forest community in the Zhuzhou Island Glyp-tostrobus pensilis.Forest Nature Reserve in Doumen,Zhuhai,Guangdong Province,in 2023 and 2006,this study revealed that the density of the Glyptostrobus pensilis forest decreased from 925 plants/hm2 to 757 plants/hm2,a decrease of 18.2%.The distribution of stand diameter at breast height structure has changed from 2-20 cm in 2006 to 6cm to 22cm in 2023,and there is a lack of natural regeneration seedlings and young trees under the for-est.The distribution trend of stand diameter in 2006 and 2023 was a cliff shaped tower,and the stand was in a pe-riod of quantity maturity turning into decline,but there is still a weak room for improvement in quality maturity;The health issues of forest communities are prominent,with dead trees accounting for 12.0%and 9.8%of the to-tal number of standing trees,and plants entangled by vines account for 33.3%and 29.5%of the total number of standing trees;The habitat is seriously threatened,and the embankment of the mudflat along the coast collapses,resulting in the exposed roots,lodging and withering of the standing trees of the Glyptostrobus pensilis.Therefore,the proposed protection measures mainly include:① strengthening the protection of habitats is urgent;② neces-sary human measures should be taken to promote the positive succession of Glyptostrobus pensilis.forest commu-nities;③a Glyptostrobus pensilis germplasm resource bank should be established to enhance the genetic diversity of Glyptostrobus pensilis.communities;④ the relationship between habitat and the growth and development of Glyptostrobus pensilis.forests should be monitored;⑤ science popularization facilities should be constructed to strengthen science popularization education.This study can provide a reference for the establishment of scientific protection programs for similar nature reserves at home and abroad.
Glyptostrobus pensilis.rare and endangered relict plantsscientific protectionproblems and countermeasures
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