| What is more important for enhancing nutrient bioavailability with biochar application into a sandy soil: Direct or indirect mechanism? | |
Xu, G.1 ; Wei, L. L.1,3; Sun, J. N.1,3; Shao, H. B.1,2; Chang, S. X.1,4
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| 发表期刊 | ECOLOGICAL ENGINEERING
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| ISSN | 0925-8574 |
| 2013-03-01 | |
| 卷号 | 52页码:119-124 |
| 关键词 | Biochar Nutrient Bioavailability Mineral Sorption Sem-edx |
| DOI | 10.1016/j.ecoleng.2012.12.091 |
| 产权排序 | [Xu, G.; Wei, L. L.; Sun, J. N.; Shao, H. B.; Chang, S. X.] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Resources Utilizat, Yantai 264003, Shandong, Peoples R China; [Shao, H. B.] QUST, Inst Life Sci, Qingdao 266042, Peoples R China; [Wei, L. L.; Sun, J. N.] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Chang, S. X.] Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada |
| 通讯作者 | Shao, HB (reprint author), QUST, Inst Life Sci, Qingdao 266042, Peoples R China. shaohongbochu@126.com |
| 作者部门 | 海岸带生物学与生物资源利用所重点实验室 |
| 英文摘要 | As a soil amendment and important bio-resources, biochar has been reported to increases in soil nutrient availability. However, the involved direct or indirect mechanisms are still not clear. In present study, we evaluated the effects of four biochar application rates (0, 1, 5 and 10%, w/w) on inorganic P fractions, available NO3--N, NH4+-N, K, Na, Ca, Mg and of Fe, Al oxides in a sandy soil. To discerddirect and indirect mechanisms, separately soil and biochar equivalent to the respective part in the mixture of soil and biochar were also studied. The results suggested that cations such as K, Ca, Na, Mg in mixture were mainly originated form biochar while inorganic N showed little effects form biochar regardless of direct or indirect mechanisms. P solubility with biochar application was more complex because they also affected by altering soil pH, changes of Fe and Al oxides, and direct P contributions from biochar. In addition, changes of Fe and Al oxides were complicated by altering soil pH, sorption on biochar, and direct release form biochar. In result, Fe and Al oxides showed no observable effects on P fractions in our soil type. Although P availability was enhanced due to the pH changes and direct release from biochar, the observed P availability was greatly lower than the predicted P availability because of the precipitation of large amount of Ca contained in biochar with soluble P in mixture. The results suggested that biochar application, resulting in pH changes and mineral sorption, can indirectly change nutrient bioavailability especially for P apart from direct release form biochar. The long term effect of P availability with biochar application deserves further attention for large-scale soil ecological restoration. (C) 2013 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [41001137, 41171216]; One Hundred-Talent Plan of CAS; CAS/SAFEA International Partnership Program for Creative Research Teams; CAS [KZCX2-YW-JC203]; Yantai Science & Technology Development Project [2011016, 2010245]; Yantai Double-hundred Talent Plan [XY-003-02]; YIC-CAS; Science & Technology Development Plan of Shandong Province [010GSF10208] ; National Natural Science Foundation of China 41001137 41171216 ; One Hundred-Talent Plan of CAS ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS KZCX2-YW-JC203 ; Yantai Science & Technology Development Project 2011016 2010245 ; Yantai Double-hundred Talent Plan XY-003-02 ; YIC-CAS ; Science & Technology Development Plan of Shandong Province 010GSF10208 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | CROP RESIDUES ; BLACK CARBON ; AMENDMENT ; CHARCOAL ; PHOSPHORUS ; OXIDATION ; NITROGEN |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Engineering |
| WOS记录号 | WOS:000316827200015 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/6480 |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Resources Utilizat, Yantai 264003, Shandong, Peoples R China 2.QUST, Inst Life Sci, Qingdao 266042, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada |
| 推荐引用方式 GB/T 7714 | Xu, G.,Wei, L. L.,Sun, J. N.,et al. What is more important for enhancing nutrient bioavailability with biochar application into a sandy soil: Direct or indirect mechanism?[J]. ECOLOGICAL ENGINEERING,2013,52:119-124. |
| APA | Xu, G.,Wei, L. L.,Sun, J. N.,Shao, H. B.,&Chang, S. X..(2013).What is more important for enhancing nutrient bioavailability with biochar application into a sandy soil: Direct or indirect mechanism?.ECOLOGICAL ENGINEERING,52,119-124. |
| MLA | Xu, G.,et al."What is more important for enhancing nutrient bioavailability with biochar application into a sandy soil: Direct or indirect mechanism?".ECOLOGICAL ENGINEERING 52(2013):119-124. |
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