Community-level dataset

This study was carried out in a natural temperate forest located in the Jiaohe Management Bureau of the Experimental Forest Zone in Jilin Province, northeastern China (43°57′54″-43°58′16″N, 127°42′47″-127°43′19″E). The area is characterized by a temperate continental climate affected by a monsoon season, which has a mean annual temperature of 3.8°C and a mean annual precipitation of 695.9 mm. The average monthly temperature ranges from -18.6 °C (January) to 21.7 °C (July). The brown forest soil typical of the area has a rootable depth ranging between 20 and 100 cm. A permanent forest observational study covering an area of 21.12 ha (660m×320m) was established in a secondary forest during the summer of 2009. The plots were resurveyed twice in 2014 and 2019.

本研究在中国东北吉林省蛟河实验林管理局辖区内的天然温带森林中开展，地理坐标为北纬43°57′54″—43°58′16″、东经127°42′47″—127°43′19″。该区域受季风影响，属温带大陆性气候，年均温3.8℃，年平均降水量695.9毫米；月均温范围为1月的-18.6℃至7月的21.7℃。区域典型的棕色森林土可扎根深度为20至100厘米。2009年夏季，研究团队在一片次生林中建立了面积为21.12公顷（ha）的永久性森林观测样地，样地规格为660米×320米。该样地分别于2014年和2019年完成两次复测。