Nonadditive effects of biochar amendments on soil phosphorus fractions in two contrasting soils
Xu, Gang; Shao, Hongbo; Zhang, You; Junna, Sun
Source PublicationLAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
2018-08
Volume29Issue:8Pages:2720-2727
Keywordbiochar Calcaric-Fluvisol Haplic Luvisol Hedley fraction transformation
MOST Discipline CatalogueEnvironmental Sciences & Ecology ; Agriculture
DOI10.1002/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
AbstractIncreased 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.
SubtypeArticle
Funding OrganizationShuangchuang 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 BySCI
Language英语
WOS KeywordPYROLYSIS TEMPERATURE ; P POOLS ; CARBON ; DESORPTION ; PHOSPHATE ; SORPTION ; CHINA ; WATER
WOS Research AreaEnvironmental Sciences ; Soil Science
WOS IDWOS:000441249100041
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24507
Collection中国科学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
中国科学院海岸带环境过程与生态修复重点实验室
Affiliation1.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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