Eight Mile Lake Research Watershed, Carbon in Permafrost Experimental Heating Research (CiPEHR): Half-hourly soil moisture and temperature data, 2008-2016.

The Carbon in Permafrost Experimental Heating Research (CiPEHR) project addresses the following questions: 1) Does ecosystem warming cause a net release of C from the ecosystem to the atmosphere?, 2) Does the decomposition of old C that comprises the bulk of the soil C pool influence ecosystem C loss?, and 3) How do winter and summer warming alone, and in combination, affect ecosystem C exchange? We are answering these questions using a combination of field and laboratory experiments to measure ecosystem carbon balance and radiocarbon isotope ratios at a warming experiment located in an upland tundra field site near Healy, Alaska in the foothills of the Alaska Range. This data set includes half-hourly values of surface moisture content (gravimetric, 0-5cm), depth-integrated soil moisture (volumetric, 0-20 cm), and soil temperature in winter warming, summer warming, and control treatment plots at CiPEHR.

多年冻土碳实验加热研究（Carbon in Permafrost Experimental Heating Research, CiPEHR）项目旨在解答以下三个科学问题：1）生态系统升温是否会引发碳从生态系统向大气的净释放？2）占土壤碳库主体的老碳分解过程是否会影响生态系统碳流失？3）单独开展冬季、夏季升温以及二者联合升温，分别会对生态系统碳交换产生何种影响？

本项目通过野外与室内实验相结合的手段，在位于阿拉斯加州希利镇附近、阿拉斯加山脉山麓地带的高地苔原实验场地的升温实验中，测定生态系统碳平衡与放射性碳同位素比值，以此解答上述问题。

本数据集涵盖CiPEHR项目内冬季升温、夏季升温及对照处理样地的半小时频次观测数据，具体包括0-5cm表层土壤重量法含水率、0-20cm深度积分体积法土壤含水率，以及土壤温度。