caa a22 4500 606220070 CHVBK 20210128101121.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s11104-015-2523-4 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2523-4 Effects of continuous drought stress on soil respiration in a tropical rainforest in southwest China [Elektronische Daten] [Xiang Zhang, Yiping Zhang, Liqing Sha, Chuansheng Wu, Zhenghong Tan, Qinghai Song, Yuntong Liu, Liyuan Dong] Background and aims: Drought is predicted to have a profound impact on soil respiration. This study aimed to assess the effects of long-term precipitation decrease on soil respiration in a tropical rainforest. Methods: A precipitation reduction experiment was conducted in a tropical forest in southwest China at the beginning of 2011. Soil respiration and environmental parameters were measured monthly for three years. Results: The continuous precipitation reduction treatment did not affect the seasonal patterns of soil respiration, but it significantly increased soil respiration in the study plot during the rainy season, and the relationship between soil respiration and soil moisture differed in the control and reduction treatment in the rainy season. Compared with the net ecosystem exchange of carbon in this system, the increment of annual soil carbon emissions in the reduction treatment was considerable and should not be ignored. Conclusions: Our results indicate that the responses of soil respiration to precipitation decrease may vary seasonally and the variation of volumetric water content in different seasons may be an important factor leading to the seasonal variation. The variation of soil moisture among different ecosystems as well as in different seasons should be taken into consideration when predicting the future response of soil respiration to drought globally. Springer International Publishing Switzerland, 2015 Throughfall reduction nationallicence Soil CO2 efflux nationallicence Soil water content nationallicence Tropical rainforest nationallicence Zhang Xiang Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Zhang Yiping Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Sha Liqing Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Wu Chuansheng Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Tan Zhenghong Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Song Qinghai Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Liu Yuntong Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Dong Liyuan Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut Plant and Soil Springer International Publishing 394/1-2(2015-09-01), 343-353 0032-079X 394:1-2<343 2015 394 11104 https://doi.org/10.1007/s11104-015-2523-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2523-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Xiang Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Zhang Yiping Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Sha Liqing Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Wu Chuansheng Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Tan Zhenghong Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Song Qinghai Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Liu Yuntong Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 700 1- Dong Liyuan Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 666303, Mengla, China aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 394/1-2(2015-09-01), 343-353 0032-079X 394:1-2<343 2015 394 11104