对比氧化还原条件对铁(氧)氧化物转化和伴生磷酸盐吸附的影响

IF 3.9 3区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Biogeochemistry Pub Date : 2023-11-18 DOI:10.1007/s10533-023-01094-z
Maximilian Barczok, Chelsea Smith, Nicolle Di Domenico, Lauren Kinsman-Costello, David Singer, Elizabeth Herndon
{"title":"对比氧化还原条件对铁(氧)氧化物转化和伴生磷酸盐吸附的影响","authors":"Maximilian Barczok,&nbsp;Chelsea Smith,&nbsp;Nicolle Di Domenico,&nbsp;Lauren Kinsman-Costello,&nbsp;David Singer,&nbsp;Elizabeth Herndon","doi":"10.1007/s10533-023-01094-z","DOIUrl":null,"url":null,"abstract":"<div><p>Iron (oxyhydr)oxides strongly adsorb phosphate and limit its bioavailability, but interactions between phosphate and various Fe (oxyhydr)oxides are poorly constrained in natural systems. An in-situ incubation experiment was conducted to explore Fe (oxyhydr)oxide transformation and effects on phosphate sorption in soils with contrasting saturation and redox conditions. Synthetic Fe (oxyhydr)oxides (ferrihydrite, goethite and hematite) were coated onto quartz sand and either pre-sorbed with phosphate or left phosphate-free. The oxide-coated sands were mixed with natural organic matter, enclosed in mesh bags, and buried in and around a vernal pond for up to 12 weeks. Redox conditions were stable and oxic in the upland soils surrounding the vernal pond but largely shifted from Fe reducing to Fe oxidizing in the lowland soils within the vernal pond as it dried during the summer. Iron (oxyhydr)oxides lost more Fe (− 41% ± 10%) and P (− 43 ± 11%) when incubated in the redox-dynamic lowlands compared to the uplands (− 18% ± 5% Fe and − 24 ± 8% P). Averaged across both uplands and lowlands, Fe losses from crystalline goethite and hematite (− 38% ± 6%) were unexpectedly higher than losses from short range ordered ferrihydrite (− 12% ± 10%). We attribute losses of Fe and associated P from goethite and hematite to colloid detachment and dispersion but losses from ferrihydrite to reductive dissolution. Iron losses were partially offset by retention of solubilized Fe as organic-bound Fe(III). Iron (oxyhydr)oxides that persisted during the incubation retained or even gained P, indicating low amounts of phosphate sorption from solution. These results demonstrate that hydrologic variability and Fe (oxyhydr)oxide mineralogy impact Fe mobilization pathways that may regulate phosphate bioavailability.</p></div>","PeriodicalId":8901,"journal":{"name":"Biogeochemistry","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of contrasting redox conditions on iron (oxyhydr)oxide transformation and associated phosphate sorption\",\"authors\":\"Maximilian Barczok,&nbsp;Chelsea Smith,&nbsp;Nicolle Di Domenico,&nbsp;Lauren Kinsman-Costello,&nbsp;David Singer,&nbsp;Elizabeth Herndon\",\"doi\":\"10.1007/s10533-023-01094-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Iron (oxyhydr)oxides strongly adsorb phosphate and limit its bioavailability, but interactions between phosphate and various Fe (oxyhydr)oxides are poorly constrained in natural systems. An in-situ incubation experiment was conducted to explore Fe (oxyhydr)oxide transformation and effects on phosphate sorption in soils with contrasting saturation and redox conditions. Synthetic Fe (oxyhydr)oxides (ferrihydrite, goethite and hematite) were coated onto quartz sand and either pre-sorbed with phosphate or left phosphate-free. The oxide-coated sands were mixed with natural organic matter, enclosed in mesh bags, and buried in and around a vernal pond for up to 12 weeks. Redox conditions were stable and oxic in the upland soils surrounding the vernal pond but largely shifted from Fe reducing to Fe oxidizing in the lowland soils within the vernal pond as it dried during the summer. Iron (oxyhydr)oxides lost more Fe (− 41% ± 10%) and P (− 43 ± 11%) when incubated in the redox-dynamic lowlands compared to the uplands (− 18% ± 5% Fe and − 24 ± 8% P). Averaged across both uplands and lowlands, Fe losses from crystalline goethite and hematite (− 38% ± 6%) were unexpectedly higher than losses from short range ordered ferrihydrite (− 12% ± 10%). We attribute losses of Fe and associated P from goethite and hematite to colloid detachment and dispersion but losses from ferrihydrite to reductive dissolution. Iron losses were partially offset by retention of solubilized Fe as organic-bound Fe(III). Iron (oxyhydr)oxides that persisted during the incubation retained or even gained P, indicating low amounts of phosphate sorption from solution. These results demonstrate that hydrologic variability and Fe (oxyhydr)oxide mineralogy impact Fe mobilization pathways that may regulate phosphate bioavailability.</p></div>\",\"PeriodicalId\":8901,\"journal\":{\"name\":\"Biogeochemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2023-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biogeochemistry\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10533-023-01094-z\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biogeochemistry","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10533-023-01094-z","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

摘要

铁(氧)氧化物强烈吸附磷酸盐并限制其生物利用度,但在自然系统中,磷酸盐与各种铁(氧)氧化物之间的相互作用很少受到限制。通过原位培养实验,探讨了饱和和氧化还原条件下土壤中铁(氧)氧化物的转化及其对磷酸盐吸附的影响。将合成的铁(氧)氧化物(水合铁、针铁矿和赤铁矿)涂覆在石英砂上,然后用磷酸盐预吸附或不吸附。这些被氧化的沙子与天然有机物质混合,包裹在网袋里,埋在一个春天的池塘里和周围,长达12周。春季塘周围高地土壤的氧化还原条件稳定,呈氧态,而春季塘内低地土壤的氧化还原条件随着夏季干涸而从铁还原向铁氧化转变。与高地相比,在氧化还原动力学的低地中,铁(氧)氧化物损失了更多的铁(- 41%±10%)和P(- 43±11%)(- 18%±5%铁和- 24±8% P)。在高地和低地的平均水平上,结晶针铁矿和赤铁矿的铁损失(- 38%±6%)出乎意料地高于短程有序水合铁的铁损失(- 12%±10%)。我们将针铁矿和赤铁矿中铁和伴生磷的损失归因于胶体脱离和分散,而铁水合物的损失归因于还原性溶解。铁的损失部分被溶解的铁作为有机结合铁(III)的保留所抵消。在培养过程中持续存在的铁(氧)氧化物保留甚至获得了磷,表明溶液中磷酸盐的吸附量很低。这些结果表明,水文变异性和铁(氧)氧化物矿物学影响铁的动员途径,可能调节磷酸盐的生物利用度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Influence of contrasting redox conditions on iron (oxyhydr)oxide transformation and associated phosphate sorption

Iron (oxyhydr)oxides strongly adsorb phosphate and limit its bioavailability, but interactions between phosphate and various Fe (oxyhydr)oxides are poorly constrained in natural systems. An in-situ incubation experiment was conducted to explore Fe (oxyhydr)oxide transformation and effects on phosphate sorption in soils with contrasting saturation and redox conditions. Synthetic Fe (oxyhydr)oxides (ferrihydrite, goethite and hematite) were coated onto quartz sand and either pre-sorbed with phosphate or left phosphate-free. The oxide-coated sands were mixed with natural organic matter, enclosed in mesh bags, and buried in and around a vernal pond for up to 12 weeks. Redox conditions were stable and oxic in the upland soils surrounding the vernal pond but largely shifted from Fe reducing to Fe oxidizing in the lowland soils within the vernal pond as it dried during the summer. Iron (oxyhydr)oxides lost more Fe (− 41% ± 10%) and P (− 43 ± 11%) when incubated in the redox-dynamic lowlands compared to the uplands (− 18% ± 5% Fe and − 24 ± 8% P). Averaged across both uplands and lowlands, Fe losses from crystalline goethite and hematite (− 38% ± 6%) were unexpectedly higher than losses from short range ordered ferrihydrite (− 12% ± 10%). We attribute losses of Fe and associated P from goethite and hematite to colloid detachment and dispersion but losses from ferrihydrite to reductive dissolution. Iron losses were partially offset by retention of solubilized Fe as organic-bound Fe(III). Iron (oxyhydr)oxides that persisted during the incubation retained or even gained P, indicating low amounts of phosphate sorption from solution. These results demonstrate that hydrologic variability and Fe (oxyhydr)oxide mineralogy impact Fe mobilization pathways that may regulate phosphate bioavailability.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Biogeochemistry
Biogeochemistry 环境科学-地球科学综合
CiteScore
7.10
自引率
5.00%
发文量
112
审稿时长
3.2 months
期刊介绍: Biogeochemistry publishes original and synthetic papers dealing with biotic controls on the chemistry of the environment, or with the geochemical control of the structure and function of ecosystems. Cycles are considered, either of individual elements or of specific classes of natural or anthropogenic compounds in ecosystems. Particular emphasis is given to coupled interactions of element cycles. The journal spans from the molecular to global scales to elucidate the mechanisms driving patterns in biogeochemical cycles through space and time. Studies on both natural and artificial ecosystems are published when they contribute to a general understanding of biogeochemistry.
期刊最新文献
Regional differences in soil stable isotopes and vibrational features at depth in three California grasslands High spatial variability in wetland methane fluxes is tied to vegetation patch types Calcium sorption and isotope fractionation in Bacillus subtilis and Pseudomonas aeruginosa Forest types control the contribution of litter and roots to labile and persistent soil organic carbon Response of Fe(III)-reducing kinetics, microbial community structure and Fe(III)-related functional genes to Fe(III)-organic matter complexes and ferrihydrite in lake sediment
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1