Xu, Gang
; Shao, Hongbo; Zhang, You; Junna, Sun发表期刊LAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
2018-08
卷号29期号:8页码:2720-2727
关键词biocharCalcaric-FluvisolHaplic LuvisolHedley fractiontransformation
研究领域Environmental Sciences & Ecology; Agriculture
DOI10.1002/ldr.3029
产权排序[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
作者部门海岸带环境过程实验室
英文摘要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.
文章类型Article
资助机构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]
收录类别SCI
语种英语
关键词[WOS]PYROLYSIS TEMPERATURE; P POOLS; CARBON; DESORPTION; PHOSPHATE; SORPTION; CHINA; WATER
研究领域[WOS]Environmental Sciences; Soil Science
WOS记录号WOS:000441249100041
引用统计被引频次：14[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24507
专题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
作者单位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
推荐引用方式
GB/T 7714Xu, 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.
APAXu, 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.
MLAXu, Gang,et al."Nonadditive effects of biochar amendments on soil phosphorus fractions in two contrasting soils".LAND DEGRADATION & DEVELOPMENT 29.8(2018):2720-2727.
PDF全文下载地址:
点我下载PDF
