Both soil temperature and soil water condition are important factors that influencing soil respiration at different temporal scales. There is still intra and inter-seasonal variations in soil temperature and soil water content although they are seasonally correlated. In this study, a field experiment was carried out to explore effects of diurnal variations in soil temperature and soil water on soil respirations (R S) in the alpine meadows in Balang Mountain in West Sichuan of China. The objectives of our study are to: 1) understand the seasonal pattern of day鄄 and night鄄time R S , in particular, nocturnal variations of R S , 2) elucidate the partitioning pattern of day鄄 and night鄄time R S , and 3) compare Q 10 values of day鄄 and night鄄time R S. We examined both day鄄 and night鄄time R S by using LI鄄8100 Automated Soil CO 2 Flux System on monthly
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