The influence of drought strength on soil respiration in a woody savanna ecosystem, southwest China
作者： Yuntong Liu , Jing Li , Yanqiang Jin , Yiping Zhang , Liqing Sha
DOI: 10.1007/S11104-018-3678-6
关键词:
摘要: Drought is expected to be more frequent and intense with global warming. Our aim was investigate how soil respiration would respond different levels of precipitation exclusion (‘drought strength’). We conducted a two-year drought experiment in woody savanna ecosystem south west China, which consisted four treatments: control treatment (CK); 30% (PE3), 50% (PE5) 70% (PE7). The cumulative rates were significantly decreased both rainy dry seasons as became intense. sensitivity moisture severity increased. There bursts CO2 emission when soils rewetted by rainfall after the season. Unlike most other exponential relationships between temperature, parabolic function observed all treatments (P 28 °C) coinciding insufficient water content (<11% Vol). Respiration rate best represented model combines temperature. Soil enhanced. response season should not ignored especially evaluating effect on whole year ecosystems. quadratic relationship temperature may important for modeling climate change (drought)
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Luitgard Schwendenmann, Edzo Veldkamp, Tania Brenes, Joseph J. O'Brien, Jens Mackensen, Spatial and temporal variation in soil CO 2 efflux in an old-growth neotropical rain forest, LA Selva, Costa Rica Biogeochemistry. ,vol. 64, pp. 111- 128 ,(2003) , 10.1023/A:1024941614919
Xiang Zhang, Yiping Zhang, Liqing Sha, Chuansheng Wu, Zhenghong Tan, Qinghai Song, Yuntong Liu, Liyuan Dong, Effects of continuous drought stress on soil respiration in a tropical rainforest in southwest China Plant and Soil. ,vol. 394, pp. 343- 353 ,(2015) , 10.1007/S11104-015-2523-4
Tana E. Wood, Whendee L. Silver, Strong spatial variability in trace gasdynamics following experimental drought in a humid tropical forest Global Biogeochemical Cycles. ,vol. 26, ,(2012) , 10.1029/2010GB004014
YIFTACH TALMON, MARCELO STERNBERG, JOSÉ M. GRÜNZWEIG, Impact of rainfall manipulations and biotic controls on soil respiration in Mediterranean and desert ecosystems along an aridity gradient Global Change Biology. ,vol. 17, pp. 1108- 1118 ,(2011) , 10.1111/J.1365-2486.2010.02285.X
Rebecca L. McCulley, Thomas W. Boutton, Steven R. Archer, Soil Respiration in a Subtropical Savanna Parkland: Response to Water Additions Soil Science Society of America Journal. ,vol. 71, pp. 820- 828 ,(2007) , 10.2136/SSSAJ2006.0303
Yann Nouvellon, Daniel Epron, Antoine Kinana, Olivier Hamel, André Mabiala, Rémi D’Annunzio, Philippe Deleporte, Laurent Saint-André, Claire Marsden, Olivier Roupsard, Jean-Pierre Bouillet, Jean-Paul Laclau, Soil CO2 effluxes, soil carbon balance, and early tree growth following savannah afforestation in Congo: Comparison of two site preparation treatments Forest Ecology and Management. ,vol. 255, pp. 1926- 1936 ,(2008) , 10.1016/J.FORECO.2007.12.026
JULIE MAJOR, JOHANNES LEHMANN, MARCO RONDON, CHRISTINE GOODALE, Fate of soil‐applied black carbon: downward migration, leaching and soil respiration Global Change Biology. ,vol. 16, pp. 1366- 1379 ,(2010) , 10.1111/J.1365-2486.2009.02044.X
JA Holt, MJ Hodgen, D Lamb, Soil respiration in the seasonally dry tropics near Townsville, North-Queensland Soil Research. ,vol. 28, pp. 737- 745 ,(1990) , 10.1071/SR9900737
A. Rey, E. Pegoraro, C. Oyonarte, A. Were, P. Escribano, J. Raimundo, Impact of land degradation on soil respiration in a steppe (Stipa tenacissima L.) semi-arid ecosystem in the SE of Spain Soil Biology & Biochemistry. ,vol. 43, pp. 393- 403 ,(2011) , 10.1016/J.SOILBIO.2010.11.007
Liming Lai, Jianjian Wang, Yuan Tian, Xuechun Zhao, Lianhe Jiang, Xi Chen, Yong Gao, Shaoming Wang, Yuanrun Zheng, Organic Matter and Water Addition Enhance Soil Respiration in an Arid Region PLOS ONE. ,vol. 8, ,(2013) , 10.1371/JOURNAL.PONE.0077659