山东日照莒县构建古树保护体系

Core Viewpoint - The ancient ginkgo tree in Juxian County, Shandong, has become a cultural symbol and is being actively protected through various measures, highlighting the importance of preserving historical and natural heritage [4][5]. Group 1: Cultural and Historical Significance - The ancient ginkgo tree is located in the Fulaishan scenic area, which is a national 4A-level tourist attraction and a historical museum [3]. - The tree stands at 26.7 meters tall with an average crown width of 34 meters, surrounded by ancient steles that bear poetry from historical figures, showcasing its long-standing connection to history [4]. - The tree serves as a witness to cultural heritage, with the nearby "Xiaojing Building" commemorating Liu Xie, a significant figure in literary theory [4]. Group 2: Conservation Efforts - Juxian County has established a protection system for ancient trees, including supplementary investigations, documentation, and protective signage [4]. - Li Jianguo, a dedicated gardener, has been caring for the ginkgo tree since 2014, performing essential tasks such as watering, pest control, and fruit thinning to ensure its health [5]. - Li maintains a "Big Tree Diary" to meticulously record the tree's growth and health, which aids experts in developing care strategies [5]. Group 3: Biological Characteristics - Ginkgo biloba, also known as the maidenhair tree, is a tall tree that can reach up to 40 meters, with fan-shaped leaves that turn golden in autumn, making it highly ornamental [5]. - Ginkgo trees are ancient, dating back 345 million years, and are unique to China, with all existing ginkgo trees worldwide originating from this region [6].