酸化胁迫下土壤关键元素的化学与生态效应

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关键词：土壤酸化；阳离子交换量；交换性盐基总量;磷；铝；化学效应；生态效应

中图分类号：S156.6 文献标识码：A

文章编号：0439-8114（2025）12-0084-05

DOI：10.14088/j.cnki.issn0439-8114.2025.12.015 开放科学（资源服务）标识码（OSID）：口

Chemical and Ecological Responses of Critical Soil Elements under Acidification Stress

YINHong-chang1，WANG Ming-rui'，CAO Feng1，YANG Guo-xiu²，YAO Jing-jing1 （1.InsitofAiculturalQualitadadstighoubeicadeofgricluralienes/HubirovicialKto NutionalQualitfefglualructAgiluralduraluctsQualitdeissesstaboraot Agricultureanduralais（Wuhan），Wuhan3O64，ha；AgriculturalTechologExtensioCenterofjangkouCityubeirovic， Danjiangkou 442700，Hubei，China）

Abstract：Soilacidificationwasposingasignificantthreat toagriculturalproductionndcologicalbalanceinChina.InHubeiProince，duetotheinfluenceoftopography，climate，andumanactivities，thesoil’scapacitytoholdnutrientsandconverteminto absorbableformshasbenweakened，consequentlyafectingropyieldsandqualityToinvestigatethebiochemicalimpactsofsoil acidficationonagriculturallandandcrops，thesoilpHacrossvariousregionsofHubeiProvincefrom2O21to2023wasmonitored. Theresultsrevealedthatthesouthwesternandsouthernregionsexperiencedthemostsevereacidification，whilethenorthwestene gionexhibitedthefastestacidificationrate.Tworepresentativeareas wereselectedforsystematicanalysisofsixkeyindicators： pH ， cationexchangecapacity，total exchangeablebases，totalphosphorus，totalaluminum，andavailablephosphorus.Theexperiments demonstratedthatsoilacidificationrestrictedtheexchangeabilityofbasecations，eadingtosoilcompactionandmpoverishentimultaneously，inbitedtetransformationofphosphorusintoavailablefors，esultinginlowutrintuseeficiency.Ifleftuco troled，thisouldpushtelndintoaviouscleof“acidiicatioeducdyiedcreasderiliaplationfurtrcidii tion".

KeyWords：soilacidification;ationexchangecapacit；totalexhangeablebases；phosphorus；alumium；chemicalefects；olog ical effects

土壤是维系农业生产和生态系统平衡的基础，而国内普遍存在的土壤酸化现象正逐渐影响着民生。（剩余5678字）