IMPACT4SOIL OpenAire Bielefeld Academic Search Engine (BASE) Crossref Microsoft Academic Graph Biology and Fertility of Soils Closed Access 2012-04-24 Understanding the responses of soil C mineralization to climate change is critical for evaluating soil C cycling in future climatic scenarios. Here, we took advantage of a multifactor experiment to investigate the individual and combined effects of experimental warming and increased precipitation on soil C mineralization and 13C and 15N natural abundances at two soil depths (0–10 and 10–20 cm) in a semiarid Inner Mongolian grassland since April 2005. For each soil sample, we calculated potentially mineralizable organic C (C 0) from cumulative CO2-C evolved as indicators for labile organic C. The experimental warming significantly decreased soil C mineralization and C 0 at the 10–20-cm depth (P < 0.05). Increased precipitation, however, significantly increased soil pH, NO 3 − -N content, soil C mineralization, and C 0 at the 0–10-cm depth and moisture and NO 3 − -N content at the 10–20-cm depth (all P < 0.05), while significantly decreased exchangeable NH 4 + -N content and 13C natural abundances at the two depths (both P < 0.05). There were significant warming and increased precipitation interactions on soil C mineralization and C 0, indicating that multifactor interactions should be taken into account in future climatic scenarios. Significantly negative correlations were found between soil C mineralization, C 0, and 13C natural abundances across the treatments (both P < 0.05), implying more plant-derived C input into the soils under increased precipitation. Overall, our results showed that experimental warming and increased precipitation exerted different influences on soil C mineralization, which may have significant implications for C cycling in response to climate change in semiarid and arid regions. Environmental sciences 2. Zero hunger Biological sciences Agricultural 570 veterinary and food sciences 13. Climate action Carbon sequestration science 0401 agriculture, forestry, and fisheries 04 agricultural and veterinary sciences 15. Life on land 630 Xiaoqi Zhou, Xiaoqi Zhou, Zhengyi Hu, Yanbin Hao, Yanfen Wang, Chengrong Chen, Zhihong Xu, Xiaoyong Cui, 2012-04-25 journalpaper Understanding the responses of soil C mineralization to climate change is critical for evaluating soil C cycling in future climatic scenarios. Here, we took advantage of a multifactor experiment to investigate the individual and combined effects of experimental warming and increased precipitation on soil C mineralization and 13C and 15N natural abundances at two soil depths (0–10 and 10–20 cm) in a semiarid Inner Mongolian grassland since April 2005. For each soil sample, we calculated potentially mineralizable organic C (C 0) from cumulative CO2-C evolved as indicators for labile organic C. The experimental warming significantly decreased soil C mineralization and C 0 at the 10–20-cm depth (P < 0.05). Increased precipitation, however, significantly increased soil pH, NO 3 − -N content, soil C mineralization, and C 0 at the 0–10-cm depth and moisture and NO 3 − -N content at the 10–20-cm depth (all P < 0.05), while significantly decreased exchangeable NH 4 + -N content and 13C natural abundances at the two depths (both P < 0.05). There were significant warming and increased precipitation interactions on soil C mineralization and C 0, indicating that multifactor interactions should be taken into account in future climatic scenarios. Significantly negative correlations were found between soil C mineralization, C 0, and 13C natural abundances across the treatments (both P < 0.05), implying more plant-derived C input into the soils under increased precipitation. Overall, our results showed that experimental warming and increased precipitation exerted different influences on soil C mineralization, which may have significant implications for C cycling in response to climate change in semiarid and arid regions. Effects Of Warming And Increased Precipitation On Soil Carbon Mineralization In An Inner Mongolian Grassland After 6 Years Of Treatments 10.1007/s00374-012-0686-1 https://doi.org/10.1007/s00374-012-0686-1