南京林业大学学报（自然科学版）2024，Vol.48Issue(4)：271-278,8.DOI:10.12302/j.issn.1000-2006.202301025
植物根劈作用对江南园林假山遗产的影响——以南京瞻园为例
The influence of plant root splitting on garden rockeries in Jiangnan:taking the Zhanyuan Garden as an example
摘要
Abstract
[Objective]Jiangnan garden rockeries are a critical aspect of garden heritage.The widespread issue of plant root splitting poses a serious threat to the longevity and preservation of these rockeries.Incorporating the study of plant root splitting into the preventive protection system for rockeries can strengthen the system's foundation,leading to a more effective preservation of garden heritage.[Method]This study uses the Zhanyuan Garden in Nanjing as a case study to quantitatively analyze the mechanism of plant root splitting in rockeries.It identifies problematic tree species,proposes and verifies five plant variables significantly related to root splitting,and establishes a regression prediction model for the area of cracks caused by this phenomenon.[Result]The study found that tree species with straight and deep roots are more likely to cause cracks in artificial rockeries.In the Zhanyuan Garden,the most significant root splitting was observed in Puja and privet,followed by loquat,Longjaya sophora,Magnolia,and papaya.Five factors,namely root length,root diameter,canopy width,tree height,and base diameter,were identified as highly influential in root splitting,showing significant correlations with the area of the resulting cracks.A multiple regression analysis helped to construct a preliminary prediction model for rockery crack areas,setting a warning threshold for changes in rockery crack dimensions.It was suggested that inhibiting the growth of a single root system might be necessary if the root length changes by more than 11.25 cm while the diameter remains constant.[Conclusion]Plant root splitting accelerates the development and expansion of cracks on rockery surfaces,potentially leading to stone fractures and structural collapse,thus endangering the heritage's long-term preservation.Based on the quantitative analysis,refining environmental variables,categorizing monitoring levels,and defining clear warning indicators can enhance the predictive capabilities and quantitative assessments for rockery protection.These measures aim to facilitate timely interventions to mitigate the impact of root splitting and improve the overall preventive protection system for rockery heritage.关键词
江南园林/园林假山/根劈作用/岩体裂缝/预防性保护/南京瞻园Key words
Jiangnan gardens/garden rockeries/root splitting action/rock mass cracks/preventive protection/Nanjing Zhanyuan Garden分类
土木建筑引用本文复制引用
张青萍,陈凤仪..植物根劈作用对江南园林假山遗产的影响——以南京瞻园为例[J].南京林业大学学报（自然科学版）,2024,48(4):271-278,8.基金项目
2023年江苏省科技计划专项资金(重点研发计划社会发展)项目(BE2023822) （重点研发计划社会发展）
江南园林遗产保护与活化江苏省文化和旅游重点实验室课题(2022) （2022）
江苏高校优势学科建设工程资助项目(PAPD). （PAPD）
