11institutetext: Knowledge-based Systems and Document Processing Research Group Faculty of Computer Science Otto-von-Guericke-University Magdeburg 11email: katrin.krieger@ovgu.de
2.1. Study site
We surveyed the population structures and dynamics of Q. chungii in Minqing Huangchulin National Nature Reserve located in Fujian Province, China (26°15′29″ N ~ 26°22′41″ N, 118°39′38″ E ~ 118°51′19″ E, with an elevation range of 100 ~ 595 m). This area has the most intense distribution of Q. chungii in the world (Li et al. 2010). The reserve was specifically established to conserve Q. chungii and its associated communities and ecosystems (Li et al. 2010). The reserve has a mid-subtropical maritime monsoon climate, with an average annual temperature of 17.5°C, an average annual sunshine duration of 1,871.4 hours, a frost-free period of 294 days, and an average annual precipitation of 1,400 to 1,900 mm. The forest soil is predominantly mountainous red soil (Li et al. 2010).