| Effects of wheat straw biochar on carbon mineralization and guidance for large-scale soil quality improvement in the coastal wetland | |
Sun Junna1,3; Wang Bingchen2; Xu Gang1 ; Shao Hongbo1,2; Xu, G (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China. gxu@yic.ac.cn; shaohongbochu@126.com
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| 发表期刊 | ECOLOGICAL ENGINEERING
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| ISSN | 0925-8574 |
| 2014 | |
| 卷号 | 62页码:43-47 |
| 关键词 | Wheat Straw Biochar Carbon Mineralization Soil Quality Improvement Coastal Wetland |
| 产权排序 | [Sun Junna; Xu Gang; Shao Hongbo] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China; [Wang Bingchen; Shao Hongbo] Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China; [Sun Junna] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 英文摘要 | To study the effects of wheat straw and its biochar on carbon mineralization in saline soil, we investigated the changes of carbon (C) mineralization rate with different carbon sources under constant moisture (CM) and drying-rewetting (DW) cycles in a homoeothermic incubator. Six treatments including control (C), wheat straw (S+W), 300 degrees C wheat straw biochar (S+C-1), 600 degrees C wheat straw biochar (S+C-2), double 300 degrees C wheat straw biochar (S+2C(1)) and combination of wheat straw and its biochar (S+W+C-1) were evaluated in the present study. Application wheat straw to the soil resulted in the higher release of CO2 than that of the treatment of S+C-1 and S+C-2. However, the CO2 release of S+W+C-1 treatment was lower as compared to wheat straw alone, which can be ascribed to the higher adsorption of biochar for organic matter. Rewetting the dried treatments caused higher release of CO2 than that of CM, but the cumulative C mineralization of DW was less than that of CM in all treatments. The extent of reduction between DW and CM was less pronounced in S+2C(1) and S+W+C-1 especially with increasing DW cycles. The results suggested that the flush of mineralized C in rewetting period can be partly compensate for the reduction of mineralized C during the drying period. The fact can be explained by the good adjustability of "r-strategist" microbes in rewetting period and the provision of better physical habitats by biochar. In general, the stress of DW cycles on saline soils could be effectively reduced with biochar application especially with low charred temperature biochar. (C) 2013 Elsevier B.V. All rights reserved.; To study the effects of wheat straw and its biochar on carbon mineralization in saline soil, we investigated the changes of carbon (C) mineralization rate with different carbon sources under constant moisture (CM) and drying-rewetting (DW) cycles in a homoeothermic incubator. Six treatments including control (C), wheat straw (S+W), 300 degrees C wheat straw biochar (S+C-1), 600 degrees C wheat straw biochar (S+C-2), double 300 degrees C wheat straw biochar (S+2C(1)) and combination of wheat straw and its biochar (S+W+C-1) were evaluated in the present study. Application wheat straw to the soil resulted in the higher release of CO2 than that of the treatment of S+C-1 and S+C-2. However, the CO2 release of S+W+C-1 treatment was lower as compared to wheat straw alone, which can be ascribed to the higher adsorption of biochar for organic matter. Rewetting the dried treatments caused higher release of CO2 than that of CM, but the cumulative C mineralization of DW was less than that of CM in all treatments. The extent of reduction between DW and CM was less pronounced in S+2C(1) and S+W+C-1 especially with increasing DW cycles. The results suggested that the flush of mineralized C in rewetting period can be partly compensate for the reduction of mineralized C during the drying period. The fact can be explained by the good adjustability of "r-strategist" microbes in rewetting period and the provision of better physical habitats by biochar. In general, the stress of DW cycles on saline soils could be effectively reduced with biochar application especially with low charred temperature biochar. (C) 2013 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Major Basic Research Program of China [2013CB430403]; National Natural Science Foundation of China [41001137, 41171216, 41103073]; One Hundred-Talent Plan of CAS; CAS/SAFEA International Partnership Program for Creative Research Teams; Yantai Science & Technology Development Project [2011016, 2010245]; Yantai Double-hundred High-end Talent Plan [XY-003-02]; 135 Development Plan of YIC-CAS |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | MICROBIAL ACTIVITY ; ORGANIC-MATTER ; BLACK CARBON ; TEMPERATURE ; MECHANISM ; OXIDATION ; CHARCOAL ; CYCLES ; RATES |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Engineering |
| WOS记录号 | WOS:000329168000005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/7027 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 通讯作者 | Xu, G (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China. gxu@yic.ac.cn; shaohongbochu@126.com |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China 2.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun Junna,Wang Bingchen,Xu Gang,et al. Effects of wheat straw biochar on carbon mineralization and guidance for large-scale soil quality improvement in the coastal wetland[J]. ECOLOGICAL ENGINEERING,2014,62:43-47. |
| APA | Sun Junna,Wang Bingchen,Xu Gang,Shao Hongbo,Xu, G ,&shaohongbochu@126.com.(2014).Effects of wheat straw biochar on carbon mineralization and guidance for large-scale soil quality improvement in the coastal wetland.ECOLOGICAL ENGINEERING,62,43-47. |
| MLA | Sun Junna,et al."Effects of wheat straw biochar on carbon mineralization and guidance for large-scale soil quality improvement in the coastal wetland".ECOLOGICAL ENGINEERING 62(2014):43-47. |
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