Col d'Olen, snow chemistry (N-NO3) 2009-2019

Dataset provides information about soil temperature, soil C and N dynamics at different sites in the alpine tundra, along an elevational gradient from 2500 to 2900 m asl during the period 2005-2018. Moreover, one snow profile was opened every year from 2009 to 2019 before snowpack isothermal condition (to avoid losses via ionic pulse). Nitrate stored in snowpack is rilevant on yearly ion balance.

本数据集提供了2005-2018年间，沿2500至2900米海拔（m asl）梯度分布的高山冻原（alpine tundra）各样地的土壤温度、土壤碳（C）与氮（N）动态数据。此外，2009-2019年间，每年均会在积雪达到等温状态（snowpack isothermal condition）前开展一次雪层剖面（snow profile）观测，以规避离子脉冲（ionic pulse）引发的样品损失。积雪层中储存的硝酸盐对年度离子平衡具有重要影响。