降水量变化下荒漠草原土壤呼吸及其影响因素

李冰, 朱湾湾, 韩翠, 余海龙, 黄菊莹

Soil respiration and its influencing factors in a desert steppe in northwestern China under changing precipitation regimes

LI Bing, ZHU Wan-Wan, HAN Cui, YU Hai-Long, HUANG Ju-Ying

表2 降水量和测定时间影响荒漠草原土壤温度(ST)和含水量(SWC)的重复测量方差分析

Table 2 Repeated measurement ANOVA of precipitation and measuring time on soil temperature (ST) and soil water content (SWC) in a desert steppe

差异来源 Differences source df ST SWC 8:00-10:00 15:00-17:00 8:00-10:00 降水量处理 Precipitation treatment (α) 4 3.707* 2.276 27.601** 测定时间 Measuring time (β) 4 57.317** 146.775** 15.003** 降水量处理×测定时间 Interaction of α and β 16 0.108 0.306 1.879