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).

无雪季期间，每周对ZEROCALM-2网格的第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》获取。每行内每10米设置一个测量点位。该监测项目于1997年启动，彼时每个网格节点仅完成一次测量；但监测进程曾暂停至2004年，2004年起，若条件允许，针对每个网格测桩（grid stone）将开展三次重复测量。土壤湿度采用ThetaProbe传感器进行人工测定，该传感器可探测地表表层0至6厘米深度范围内的土壤湿度，相关参数在列名中标注为0-6_cm。