降水量变化下荒漠草原土壤呼吸及其影响因素
李冰1,2, 朱湾湾3, 韩翠1, 余海龙3, 黄菊莹2,*(
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Soil respiration and its influencing factors in a desert steppe in northwestern China under changing precipitation regimes
LI Bing1,2, ZHU Wan-Wan3, HAN Cui1, YU Hai-Long3, HUANG Ju-Ying2,*()
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图2. 降水量变化对6-10月荒漠草原土壤呼吸速率的影响(平均值±标准误)。W1, 降水量减少50%; W2, 降水量减少30%; W3,
自然降水量; W4, 降水量增加30%; W5, 降水量增加50%。不同小写字母表示同一测定时间下降水量处理间差异显著(p < 0.05)。
Fig. 2. Effects of precipitation change on soil respiration rate from June to October in a desert steppe (mean ± SE). W1, 50% reduction in precipitation; W2, 30% reduction in precipitation; W3, natural precipitation; W4, 30% increase in precipitation; W5, 50% increase in precipitation. Different lowercase letters indicate significant differences among the precipitation treatments under the same measuring time (p < 0.05).
