ZEROCALM-2_Soil_moisture

Soil moisture is measured every week, during the snow free season, along row 1 and 6 in the ZEROCALM-2 grid (row numbers and grid nodes can be found in the GeoBasis Zackenberg manual). Soil moisture is measured every 10th meter in each row. Measurements were initiated in 1997 (where only one measurement was made at each grid node), however measurements were paused until 2004, whereafter three replicates were made by each grid stone, if possible. Soil moisture is measured manually using a ThetaProbe which measures the soil moisture within the first 6 cm from the soil surface (indicated with 0-6_cm in the columnname).在无雪季期间，每周对ZEROCALM-2网格（ZEROCALM-2 grid）的第1行和第6行开展土壤湿度监测，行号与网格节点信息可查阅《GeoBasis Zackenberg手册》（GeoBasis Zackenberg manual）。每行内每间隔10米进行一次监测。该监测工作于1997年启动，当时每个网格节点仅开展单次测量；后监测工作暂停至2004年，恢复后若条件允许，每个网格测点进行三次重复测量。本次土壤湿度监测采用手动方式，使用ThetaProbe型土壤水分传感器（ThetaProbe），其测定深度为土壤表层下0至6厘米（列名中标注为0-6_cm）。