Sample plot data of Yipinglang Forest Farm.xlsx

The study area is the Yipinglang Forest Area, Lufeng County, Yunnan Province. The area is located on the Central Yunnan Plateau (Figure 1), and the forest area ranges from 24°59′ to 25°13′N and from 101°40′ to 102°05′ E, with elevations from 1495 to 2594 m. The region has a subtropical plateau monsoon climate with distinct wet and dry seasons. The annual temperature is 15.6 ℃ to 16.2 ℃, the annual precipitation is 930.5 mm, and the annual cumulative temperature (over 10 ℃) is 4900 to 5913 ℃. Subtropical evergreen broad-leaved forests dominate this region. Major tree species include Yunnan Pine (<i>Pinus yunnanensis</i> Franch.), Huashan Pine (<i>Pinus armandi</i> Franch.), Yunjiang Castanopsis (<i>Castanopsis orthacantha</i> Franch.), Yunnan Ketelleria (<i>Keteleeria evelyniana</i> Mast.), Mountain Castanopsis (<i>Castanopsis delavayi</i> Franch.) and Yunnan Oriental White Oak (<i>Cyclobalanopsis glaucoides</i> Schottky.).