生物炭对土壤养分有效性和离子交换性的影响 -pg电子娱乐平台

doi:10.12357/cjea.20230026张文菊.施用生物炭对土壤养分有效性和离子交换性能影响的整合分析[j].中国生态农业学报(中英文),2023,31(9):14491459ranbiocharapplicationsoilnutrientavailabil-ityexchangeablebasedcations:meta-analysis[j].chinesejournaleco-agriculture,2023,31(9):14491459施用生物炭对土壤养分有效性和离子交换性能影响的整合分析中国农业科学院农业资源与农业区划研究所/农业农村部耕地质量监测与评价重点实验室/北方干旱半干旱耕地高效利用全国重点实验室　北京　100081;中国农业大学土地科学与技术学院　北京　100083;为准确评估施用生物炭对土壤养分有效性及交换性盐基离子的影响,通过收集2000—2020年发表的文献,获得不施生物炭(空白无添加)和单施生物炭648组匹配数据、不施生物炭和生物炭配施化肥430组匹配数据。采用数据整合分析(meta-analysis)方法,分析了不同方式施用生物炭对土壤氮磷含量(总氮、nh-n、olsen-p)、交换性盐基离子(k及阳离子交换量(cec)的影响。结果显示:施用生物炭(单施或与化土壤氮磷含量增加14.0%~128.1%、盐基离子含量增加22.5%~270.2%。对不同方式施用生物炭的效果比较可知,生物炭与化肥配施对土壤养分的提升效果更加显著,单施生物炭对土壤盐基离子提升效果更高。进一步分析显示,当生物炭原料ph8单施生物炭显著增加土壤olsen-p含量达10.3%~58.5%;制备温度500施生物炭对土壤盐基离子含量的增加幅度为33.9%~384.7%;生物炭施用量10thm生物炭与化肥配施对土壤olsen-p含量增加幅度(374.1%)高于单施生物炭(2.1%);在ph6.5土壤施用生物炭提高土壤氮磷及交换性钙含量,其中单施生物炭土壤olsen-p含量和cec的增幅分别达45.0%和17.9%。因此,施用生物炭能有效改善土壤养分有效性和离子交换性能,降低环境风险。实际应用中需要根据不同目的选择生物炭单施或配施化肥,同时综合生物炭特性、施用量和土壤属性条件,有效利用生物炭提升土壤肥力是未来农业高质量发展的重点方向。关键词:生物炭;土壤养分有效性;交换性盐基离子;meta分析中图分类号:s156开放科学码(资源服务)标识码(osid):impactsbiocharapplicationsoilnutrientavailabilityexchangeablebasedcations:ranjiwei1,2qixinwudonghuangmincaizejiang1,4huangyapingzhangwenjuagriculturalresourcesregionalplanning,chineseacademyagriculturalscienceskeylaboratorycultivatedlandqualitymonitoringevaluation,ministryruralaffairsstatekeylaboratoryefficientutilizationsemi-aridarablelandnorthernchina,beijing100081,china;environmentalengineering,wuhanuni-versitytechnology,wuhan430070,china;landsciencetechnology,chinaagriculturaluniversity,beijing100083,china;redsoilexperimentalstationchineseacademyagriculturalscienceshengyang,qiyang426182,china)新疆维吾尔自治区重大科技专项项目(2022a02007-1)和国家重点研发计划项目(2021yfd1901201)资助主要研究方向为农田养分循环。e-mail:huangyaping@caas.cn研究方向为土壤改良。e-mail:ranjiwei@163.com收稿日期:2023-01-11　接受日期:2023-03-31majorsciencetechnologyspecialprojectxinjianguygurautonomousregion(2022a02007-1)nationalkeyresearchdevelopmentprogramchina(2021yfd1901201).correspondingauthor,e-mail:huangyaping@caas.cnreceivedjan.11,2023;acceptedmar.31,2023中国生态农业学报(中英文)　2023chinesejournalofeco-agriculture,sep.2023,31(9):14491459http://www.ecoagri.ac.cnabstract:accuratelyassessbiocharapplicationsoilnutrientavailabilityexchangeablebasedcations,20002020publishedliteratureobtain648matcheddatabiocharapplication(blanksinglebiocharapplication,430matcheddatabiocharapplicationbiocharco-applicationmeta-analysisdifferentbiocharapplicationsavailability(totalolsen-p),salt-basedionscontentscationexchangecapacity(cec).resultsshowedapplica-tionbiochar(alonechemicalfertilizers)significantlyincreasedsoilsalt-basedionscontents22.5'0.2%,respectively.differentbiocharapplication,chemicalfertilizercombinationtreatmenthigherthanbiocharapplicationalone,whilesalt-basedionscontentsbiocharapplicationalonehigherthanchemicalfertilizer combination. further analysis showed higherthan biocharalone significantly increased soil olsen-p content 10.3x.5%.when biocharpyrolysis temperature higherthan 500, biocharalone increased soilsalt-based ions contents 33.984.7%.when applicationrate lessthan 10 thm soilolsen- contentincreased higher under biochar combined chemicalfertilizer (374.1%) than biocharapplication alone (2.1%). addition,applying biochar ph6.5could effectively increase soil olsen-pcontent cecincreased 17.9%,respectively, under biochar application alone. therefore, biocharcould effectively improve soil nutrient availability ionexchange properties, reducingenvironmental risks. practicalapplications, biochar can