Article(id=1314918640999297547, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314918450573701162, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1746633600000, receivedDateStr=2025-05-08, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791430634020, onlineDateStr=2026-10-08, pubDate=1766160000000, pubDateStr=2025-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791430634020, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791430634020, creator=13701087609, updateTime=1791430634020, updator=13701087609, issue=Issue{id=1314918450573701162, tenantId=1146029695717560320, journalId=1234093305789726721, year='2025', volume='45', issue='12', pageStart='6513', pageEnd='7104', issueExtLink='null', onlineDate='null', pubDate='1766160000000', pubDateStr='2025-12-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791430588620, creator='13701087609', updateTime=1791431575400, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314922589479333965, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314918450573701162, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314922589479333966, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314918450573701162, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=6963, endPage=6974, ext={EN=ArticleExt(id=1314918641209012748, articleId=1314918640999297547, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Effects of freeze-thaw cycles on physicochemical properties of pore water in saline soil and carbon emissions, columnId=1234106390126588740, journalTitle=China Environmental Science, columnName=Carbon Emission Control, runingTitle=null, highlight=null, articleAbstract=

To investigate the impacts of different freeze-thaw cycles on the pore structure, pore water redistribution and compositional shifts in saline soil, and further reveal the responses of soil microbial carbon emissions, a moderately saline soil from the Hetao Irrigation District in Inner Mongolia, China, was subjected it to 0, 1, 3, 5, 7, and 9simulated freeze-thaw cycles (hereafter termed as CK, FT1, FT3, FT5, FT7, FT9). The CO₂ emission rate was monitored every day (12h freezing + 12h thawing), and the pore water content and major ion concentrations across eight suction levels were determined through high-speed centrifugation. The results showed that: 1) The water-holding capacity of the small pores (size of 0.3~3.5 μm) was significantly higher than that of the large and medium pores (size of 3.5~34μm). After disturbed by freeze-thaw, the soil water-holding capacity decreased significantly, and the water content at the lower suction levels (0~1053cm) of the FT5 group dropped to 18.9%, which was 5.4% lower than the CK group. The total dissolved solids (TDS) content in the small pores reached 75673mg/L for the FT3 group, whilst that in the large and medium pores was only 46955mg/L for the FT5 group. Furthermore, multiple freeze-thaw cycles significantly promoted the soil CO₂ emission rates. 2)The average pore water content varied between 19.97% and 18.9% at the lower suction levels, but ranged only from 6.992% to 5.402% at the higher suction levels. 3) Limited numbers of freeze-thaw cycles (FT1-FT3) significantly increased the ion concentration in pore water, and the Na⁺ concentration reached a peak of 7353.8mg/L in the FT3 group, which was 64.2% higher than that in the CK group (initial value). However, after five freeze-thaw cycles, the Na⁺ concentration abruptly dropped to 3881.5mg/L in the FT5 group, and then rebounded to 92.1% of the initial value in the FT7-FT9 groups. 4) The soil CO₂ emission rates increased with the freeze-thaw cycles, where the FT9 group released 2.94 times the amount of CO₂ compared to the FT1 group. Post the freeze-thaw disturbances, the soil CO₂ emission rate gradually declined to the levels comparable with the non-freeze-thaw group.

, authors=Ze-wei ZHANG¹, Lei WU¹, Ze-xin LI¹, Bo ZHANG¹, Jun-ying CHEN¹, Ya-xian HU², Xian-wen LI^{1, *}, authorsList=Ze-wei ZHANG, Lei WU, Ze-xin LI, Bo ZHANG, Jun-ying CHEN, Ya-xian HU, Xian-wen LI, authorCompany=null, correspAuthors=Xian-wen LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314918641464865293, articleId=1314918640999297547, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=冻融循环对盐渍土孔隙水理化性质的影响及CO₂排放响应, columnId=1234106391661704058, journalTitle=中国环境科学, columnName=碳排放控制, runingTitle=null, highlight=null, articleAbstract=

为探究不同冻融循环次数对盐渍土孔隙结构和孔隙水溶质再分布的影响，揭示冻融环境土壤CO₂排放的响应机制，本研究以内蒙古河套灌区中度盐渍土为对象，分别进行0，1，3，5，7，9次冻融循环处理（记为CK, FT1, FT3, FT5, FT7, FT9），每日监测CO₂释放速率，并通过高速冷冻离心法分别获取并测定8个吸力段孔隙水含量和主要离子浓度．结果表明：1）盐渍土小孔径段（0.3~3.5μm）持水能力显著高于大、中等孔径段（3.5~34μm）；经历冻融作用并随着冻融循环次数的增加，土壤持水能力显著降低，FT5组低吸力段（0~1053cm）含水量降至18.9%，较CK组下降5.4%；小孔径段孔隙水总可溶性盐（TDS）含量达75673mg/L（FT3组），而大、中等孔径段TDS含量仅为46955mg/L（FT5组）．且多次冻融循环对CO₂释放速率有显著推动作用．2）低吸力段，各处理间孔隙平均含水率变化范围在19.97%~18.9%；在高吸力段，各处理间含水率变化范围为6.992%~5.402%；3）低次冻融循环（FT1~FT3）显著提高孔隙水离子浓度，Na⁺在FT3组达峰值7353.8mg/L，较CK组（初始值）提高64.2%；经历5次冻融后，Na⁺骤降至3881.5mg/L，随后在FT7~FT9组回升至初始值的92.1%．4）盐渍土在经历各次冻融循环期间CO₂释放速率增加，FT9组碳排放是FT1排放的2.94倍．冻融循环结束后培养阶段，所有处理碳排放速率开始下降，均降至非冻融组相似水平．

, authors=章泽炜¹, 吴雷¹, 李泽昕¹, 张博¹, 陈俊英¹, 胡亚鲜², 栗现文^{1, *}, authorsList=章泽炜, 吴雷, 李泽昕, 张博, 陈俊英, 胡亚鲜, 栗现文, authorCompany=null, correspAuthors=栗现文, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=WyvDKm3nxFJZBUPUfuBjtg==, magXml=4TNPDlvo06Xrmf7MCmx4aA==, pdfUrl=null, pdf=Ebqr+fny8aABExaeC7g1Hw==, pdfFileSize=2502464, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=rVC2RvfcHUX33EGkTBj/3g==, mapNumber=null, fund=null)}, authors=[Author(id=1314918641888490005, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314918640999297547, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1659684933@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314918641972376087, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314918640999297547, authorId=1314918641888490005, language=EN, stringName=Ze-wei ZHANG, firstName=Ze-wei, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.College of Water Resources and Architectural Engineering, Northwest A&F University, Key Laboratory of Agricultural Soil and Water Engineering in Arid Areas, Ministry of Education, Yangling 712100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314918642039484952, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314918640999297547, authorId=1314918641888490005, language=CN, stringName=章泽炜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.西北农林科技大学水利与建筑工程学院，旱区农业水土工程教育部重点实验室，陕西 杨凌 712100, bio={"content":"

章泽炜（1998-），男，浙江绍兴人，西北农林科技大学硕士研究生，主要从事冻融盐渍土对CO₂排放方面的研究．1659684933@qq.com.

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章泽炜（1998-），男，浙江绍兴人，西北农林科技大学硕士研究生，主要从事冻融盐渍土对CO₂排放方面的研究．1659684933@qq.com.

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