| Nonadditive effects of biochar amendments on soil phosphorus fractions in two contrasting soils | |
Xu, Gang ; Shao, Hongbo; Zhang, You; Junna, Sun
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| Source Publication | LAND DEGRADATION & DEVELOPMENT
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| ISSN | 1085-3278 |
| 2018-08 | |
| Volume | 29Issue:8Pages:2720-2727 |
| Keyword | biochar Calcaric-Fluvisol Haplic Luvisol Hedley fraction transformation |
| MOST Discipline Catalogue | Environmental Sciences & Ecology ; Agriculture |
| DOI | 10.1002/ldr.3029 |
| Contribution Rank | [Xu, Gang; Zhang, You] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Shao, Hongbo] Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Salt Soil Agr Ctr, Nanjing 210014, Jiangsu, Peoples R China; [Shao, Hongbo] Yancheng Teachers Univ, Jiangsu Synthet Innovat Ctr Coastal Bioagr, Jiangsu Key Lab Bioresources Saline Soils, Yancheng 224002, Peoples R China; [Junna, Sun] Ludong Univ, Sch Life Sci, Yantai 264025, Peoples R China; [Zhang, You] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Department | 海岸带环境过程实验室 |
| Abstract | Increased soil total phosphorus (P) or available P has been reported in biochar-amended soils, although the underlying mechanisms need to be fully understood. In the present study, two contrasting soils (acidic Haplic Luvisol and alkaline Calcaric-Fluvisol) amended with wheat straw biochar were sequentially extracted with modified Hedley method to study the P transformation in the soils. Our results showed that biochar application significantly increased (positive effects) P fractions (except for NaHCO3-P-i and residual-P) content in Haplic Luvisol. The increased soil microbial activity and reduced soil acidity or increased cation exchange capacity may be accounted for enhanced P transformation. The reduced NaHCO3-P-i content may be related to P immobilization with increased soil microbial activity induced by biochar addition because the high C:P ratios of biochar (ranged from 234 to 357) suggested net P immobilization occurred when biochar was incorporated into soil. Biochar application first (4days) increased soil NaHCO3-P-o content and then decreased it with longer incubation time (30days). The decrease in NaHCO3-P-o suggested that the labile organic P was converted into nonlabile inorganic or organic P. In comparison with those in Haplic Luvisol, almost all P fractions showed negative effects with biochar addition into Calcaric-Fluvisol. The results may be caused by the P precipitation or sorption with increased soil pH with biochar application. On the basis of P transformation, biochar is recommended to be used in Haplic Luvisol (acidic soil) and not to Calcaric-Fluvisol (alkaline soil) because of the positive effects and negative effects observed on P fractions in biochar-amended soils. |
| Subtype | Article |
| Funding Organization | Shuangchuang Talent Plan of Jiangsu Province, China ; Agricultural Independent Innovation of Jiangsu Province [CX (15)1005] ; National Natural Science Foundation of China [41501309, 41573120] ; Key Deployment Project of Chinese Academy of Sciences [KFZD-SW-112] ; Science and Technology Service Network Initiative [KFJ-STS-ZDTP-023] |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PYROLYSIS TEMPERATURE ; P POOLS ; CARBON ; DESORPTION ; PHOSPHATE ; SORPTION ; CHINA ; WATER |
| WOS Research Area | Environmental Sciences ; Soil Science |
| WOS ID | WOS:000441249100041 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.yic.ac.cn/handle/133337/24507 |
| Collection | 中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 中科院海岸带环境过程与生态修复重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; 2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Salt Soil Agr Ctr, Nanjing 210014, Jiangsu, Peoples R China; 3.Yancheng Teachers Univ, Jiangsu Synthet Innovat Ctr Coastal Bioagr, Jiangsu Key Lab Bioresources Saline Soils, Yancheng 224002, Peoples R China; 4.Ludong Univ, Sch Life Sci, Yantai 264025, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, Gang,Shao, Hongbo,Zhang, You,et al. Nonadditive effects of biochar amendments on soil phosphorus fractions in two contrasting soils[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(8):2720-2727. |
| APA | Xu, Gang,Shao, Hongbo,Zhang, You,&Junna, Sun.(2018).Nonadditive effects of biochar amendments on soil phosphorus fractions in two contrasting soils.LAND DEGRADATION & DEVELOPMENT,29(8),2720-2727. |
| MLA | Xu, Gang,et al."Nonadditive effects of biochar amendments on soil phosphorus fractions in two contrasting soils".LAND DEGRADATION & DEVELOPMENT 29.8(2018):2720-2727. |
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