(Table 2) Effects of open top chamber incubation on soil microclimate at study sites on Anchorage, Signy and Falkland Islands

Differences between open top chamber (OTC) and control treatments, in relation to temperature at the soil surface, degree-days, freeze-thaw cycles, photosynthetically active radiation (PAR) and soil moisture. Analyses were based on the mean of the hourly data for the period December 2004-November 2005.开顶式气室（Open Top Chamber，OTC）与对照处理在土壤表面温度、积温、冻融循环、光合有效辐射（Photosynthetically Active Radiation，PAR）及土壤含水量方面的差异。本分析基于2004年12月至2005年11月时段的小时数据平均值。