Soil properties, carbon composition, microbial community, and potential CO2 production from a typical thaw slump on the northern Qinghai-Tibet Plateau

Rapid warming of permafrost regions leads to the widespread development of thaw slumps and accelerates the decomposition and release of soil organic carbon. Yet, how the evolution of thaw slump affects carbon dioxide (CO2) release remains unclear. This dataset presents soil properties, carbon composition, microbial community, and potential CO2 production from a typical thaw slump located in the northeastern Qinghai-Tibet Plateau (37°28′N, 100°17′E, 3597m). In the field, we set up a control area and three collapse areas (including 1, 12, and 23 years of collapse) along the thaw sequence. In each plot, we set up three quadrats (~4 m × 5 m) along a diagonal line. Three replicates of topsoil (0–15 cm) and subsoil (15–30 cm) were collected from each quadrate and mixed by depth as one composite sample for subsequent analyses. The soil sampling was carried out in July 2020. […]

永久冻土区域的迅速升温导致了广泛发育的融冻滑坡，并加速了土壤有机碳的分解与释放。然而，融冻滑坡的演变如何影响二氧化碳（CO2）的释放仍不明确。本数据集展示了位于青藏高原东北部（北纬37°28′，东经100°17′，海拔3597米）一个典型融冻滑坡的土壤特性、碳组成、微生物群落以及潜在的CO2产生情况。在现场，我们沿融冻序列设立了控制区和三个坍塌区（包括1年、12年和23年的坍塌历史）。在每个地块中，沿对角线方向设置了三个样方（约4米×5米）。从每个样方中收集了表层土（0-15厘米）和底土（15-30厘米）的三个重复样本，并按深度混合为一个综合样品，以供后续分析。土壤采样于2020年7月进行。