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Impacts of soil properties on phosphorus adsorption and fractions in purple soils
Xiao, Yi1; Tang, Jia-liang1; Wang, Ming-kuang2; Zhai, Long-bo1; Zhang, Xi-feng1
2017-12-01
发表期刊JOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
卷号14期号:12页码:2420-2431
摘要Information on phosphorus (P) adsorption and its impacts on the redistribution of the P fraction in soil profiles are important for environmental management under intensive agricultural practices. To clarify the dominant factors influencing soil phosphorus adsorption in an Entisol (locally known as purple soil), P adsorption experiments were conducted in Sichuan Basin of southwestern China for cropland and woodland soils with acidic, neutral and calcareous origins throughout their profile. After various doses of P were added during incubation experiments, soil P fractions were also analyzed. The results showed that there were no significant differences in Fe-oxides and P adsorption along the vertical gradients. Agricultural practices and lower pH conditions reduced the P adsorption capacity of purple soils throughout the soil profiles. For acidic and neutral purple soil profiles, the P adsorption capability was mainly influenced by Fe-oxides and soil texture. Ca-bound P and Fe-Al-bound P represented the majority of the total inorganic P of calcareous soils. There was a saturation of adsorption capacity by sesquioxide and a high risk of dissoluble reactive P (NH4Cl-P) being released out of the soil profile in acidic and neutral purple soils after the greatest P addition, indicated by the higher proportions of NH4Cl-P (over 40%) and decreasing Fe-Al-P fraction. P fractions migrated with greater difficulty in calcareous purple soil profiles as Ca-P fraction peaked over 65% when adding a P dose at or greater than 80 g P kg(-1), indicating the high potential of P adsorption. The X-Ray Diffraction analysis also verified the formation of brushite. Adaptive management practices should be designed to alleviate P losses for acidic and neutral purple soils.
关键词Agroecology Soil parent material Feoxides Phosphorus adsorption Incubation experiment Phosphorus fraction
DOI10.1007/s11629-017-4545-2
关键词[WOS]CENTRAL SICHUAN BASIN ; PHOSPHATE SORPTION ; CALCAREOUS SOILS ; IRON-OXIDES ; CHINA ; RELEASE ; EROSION ; AREA ; POLLUTION ; KINETICS
语种英语
资助项目National key RD program[2016YFD0200309-7] ; Natural Science Foundation of China[41430750] ; Natural Science Foundation of China[41371241] ; West Light Foundation of Chinese Academy of Sciences (Young Scholarship A)
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000418074700004
项目资助者National key RD program ; Natural Science Foundation of China ; West Light Foundation of Chinese Academy of Sciences (Young Scholarship A)
出版者SCIENCE PRESS
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型快三精准计划app
条目标识符/handle/131551/20632
专题Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.12
通讯作者Tang, Jia-liang
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolut & Regulat, Chengdu 610041, Sichuan, Peoples R China
2.Natl Taiwan Univ, Dept Agr Chem, Taipei 10617, Taiwan
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Xiao, Yi,Tang, Jia-liang,Wang, Ming-kuang,et al. Impacts of soil properties on phosphorus adsorption and fractions in purple soils[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(12):2420-2431.
APA Xiao, Yi,Tang, Jia-liang,Wang, Ming-kuang,Zhai, Long-bo,&Zhang, Xi-feng.(2017).Impacts of soil properties on phosphorus adsorption and fractions in purple soils.JOURNAL OF MOUNTAIN SCIENCE,14(12),2420-2431.
MLA Xiao, Yi,et al."Impacts of soil properties on phosphorus adsorption and fractions in purple soils".JOURNAL OF MOUNTAIN SCIENCE 14.12(2017):2420-2431.
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