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实验林区蛟河管理局辖内的一处天然温带森林中开展，地理位置为北纬43°57′54″—43°58′16″、东经127°42′47″—127°43′19″。该区域属于受季风影响的温带大陆性气候，年平均气温3.8℃，年平均降水量695.9毫米，月平均气温范围为1月的-18.6℃至7月的21.7℃。本区域典型土壤为棕色森林土，其可生根深度介于20至100厘米之间。2009年夏季，研究团队在一处次生林内设立了面积为21.12公顷（660米×320米）的永久性森林观测样地。该样地分别于2014年与2019年完成两次复测。