naa a22 4500 510737374 CHVBK 20180411083015.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11284-013-1078-1 doi (NATIONALLICENCE)springer-10.1007/s11284-013-1078-1 Responses of a rice-wheat rotation agroecosystem to experimental warming [Elektronische Daten] [Hao Cheng, Wenwei Ren, Lele Ding, Zengfu Liu, Changming Fang] Climate change is likely to affect agroecosystems in many ways. This study was performed to investigate how a rice-winter wheat rotation agroecosystem in southeast China would respond to global warming. By using an infrared heater system, the soil surface temperature was maintained about 1.5°C above ambient milieu over 3years. In the third growing season (2009-2010), the evapotranspiration (ET) rate, crop production, soil respiration, and soil carbon pool were monitored. The ET rate was 23% higher in the warmed plot as compared to the control plot during the rice paddy growing season, and the rice grain yield was 16.3% lower, but there was no significant difference in these parameters between the plots during the winter wheat-growing season. The phenology of the winter wheat shifted under experimental warming, and ET may decrease late in the winter wheat-growing season. Experimental warming significantly enhanced soil respiration, with mean annual soil respiration rates of 2.57±0.17 and 1.96±0.06μmol CO2 m−2s−1 observed in the warmed and control plots, respectively. After 3 years of warming, a significant decrease in the total organic carbon was observed, but only in the surface soil (0-5cm). Warming also stimulated the belowground biomass, which may have compensated for any heat-induced loss of soil organic carbon. Paddy rice seemed to be more vulnerable to warming than winter wheat in terms of water-use efficiency and grain production. The Ecological Society of Japan, 2013 Evapotranspiration nationallicence Experimental warming nationallicence Rice-winter wheat rotation nationallicence Soil respiration nationallicence Cheng Hao Institute of Biodiversity Science, Fudan University, #220 Handan Road, 200433, Shanghai, China aut Ren Wenwei WWF China-Shanghai Office, #121 Zhongshan No.1 Road, Hongkou District, 200083, Shanghai, China aut Ding Lele Youth Business China-Yangpu Office, Room 208, 200# Guoding East Road, Yangpu District, 200433, Shanghai, China aut Liu Zengfu WWF China-Shanghai Office, #121 Zhongshan No.1 Road, Hongkou District, 200083, Shanghai, China aut Fang Changming Institute of Biodiversity Science, Fudan University, #220 Handan Road, 200433, Shanghai, China aut Ecological Research Springer Japan 28/6(2013-11-01), 959-967 0912-3814 28:6<959 2013 28 11284 https://doi.org/10.1007/s11284-013-1078-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11284-013-1078-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cheng Hao Institute of Biodiversity Science, Fudan University, #220 Handan Road, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Ren Wenwei WWF China-Shanghai Office, #121 Zhongshan No.1 Road, Hongkou District, 200083, Shanghai, China aut NATIONALLICENCE 700 1- Ding Lele Youth Business China-Yangpu Office, Room 208, 200# Guoding East Road, Yangpu District, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Liu Zengfu WWF China-Shanghai Office, #121 Zhongshan No.1 Road, Hongkou District, 200083, Shanghai, China aut NATIONALLICENCE 700 1- Fang Changming Institute of Biodiversity Science, Fudan University, #220 Handan Road, 200433, Shanghai, China aut NATIONALLICENCE 773 0- Ecological Research Springer Japan 28/6(2013-11-01), 959-967 0912-3814 28:6<959 2013 28 11284 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer