globalchange  > 气候变化事实与影响
DOI: 10.1002/2013GB004746
Scopus记录号: 2-s2.0-84896589724
论文题名:
Soil organic carbon sequestration in upland soils of northern China under variable fertilizer management and climate change scenarios
作者: Jiang G; , Xu M; , He X; , Zhang W; , Huang S; , Yang X; , Liu H; , Peng C; , Shirato Y; , Iizumi T; , Wang J; , Murphy D; V
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2014
卷: 28, 期:3
起始页码: 319
结束页码: 333
语种: 英语
英文关键词: BCCR ; carbon sequestration ; IPSL ; maize ; RothC ; wheat
Scopus关键词: Carbon ; Carbon dioxide ; Fertilizers ; Soils ; BCCR ; Carbon sequestration ; IPSL ; maize ; RothC ; wheat ; Climate change ; biogeochemistry ; carbon dioxide ; carbon sequestration ; climate change ; cropping practice ; fertilizer application ; manure ; model validation ; net primary production ; organic carbon ; plant residue ; soil carbon ; soil organic matter ; straw ; upland region ; China ; Triticum aestivum ; Zea mays
英文摘要: We determined the historical change in soil organic carbon (SOC) stocks from long-term field trials that represent major soil types and climatic conditions of northern China. Soil carbon and general circulation models were validated using these field trial data sets. We then applied these models to predict future change in SOC stocks to 2100 using two net primary production (NPP) scenarios (i.e., current NPP or 1% year-1 NPP increase). The conversion rate of plant residues to SOC was higher in single-cropping sites than in double-cropping sites. The prediction of future SOC sequestration potential indicated that these soils will be a net source of carbon dioxide (CO2) under no fertilizer inputs. Even when inorganic nutrients were applied, the additional carbon input from increased plant residues could not meet the depletion of SOC in parts of northern China. Manure or straw application could however improve the SOC sequestration potential at all sites. The SOC sequestration potential in northern China was estimated to be -4.3 to 18.2 t C ha-1 by 2100. The effect of projected climate change on the annual rate of SOC change did not differ significantly between climate scenarios. The average annual rate of SOC change under current and increased NPP scenarios (at 850 ppm CO2) was approximately 0.136 t C ha -1 yr-1 in northern China. These findings highlight the need to maintain, and where possible increase, organic carbon inputs into these farming systems which are rapidly becoming inorganic fertilizer intensive. ©2014. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77494
Appears in Collections:气候变化事实与影响

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作者单位: Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China; School of Plant Biology, University of Western Australia, Crawley, WA, Australia; Institute of Plant Nutrition and Resources Environment, Henan Academy of Agricultural Sciences, Zhengzhou, China; College of Natural Resources and Environment, Northwest A and F University, Yangling, China; Institute of Soil and Fertilizer, Xinjiang Academy of Agricultural Sciences, Urumqi, China; Northeast Agricultural Research Center of China, Jilin Academy of Agricultural Sciences, Changchun, China; National Institute for Agro-Environmental Sciences, Tsukuba, Japan; Soil Biology and Molecular Ecology Group, School of Earth and Environment, University of Western Australia, Crawley, WA, Australia

Recommended Citation:
Jiang G,, Xu M,, He X,et al. Soil organic carbon sequestration in upland soils of northern China under variable fertilizer management and climate change scenarios[J]. Global Biogeochemical Cycles,2014-01-01,28(3)
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