| 不同年龄杉木林MB-P的调控因子 |
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| 引用本文： | 邓飘云,周运超,闫文德,谌小勇,刘明礼,曹娟,刘启波.不同年龄杉木林MB-P的调控因子[J].水土保持研究,2019(1):260-265. |
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| 作者姓名： | 邓飘云 周运超 闫文德 谌小勇 刘明礼 曹娟 刘启波 |
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| 作者单位： | 贵州大学林学院;贵州森林资源资产评估有限公司;中南林业科技大学生命科学与技术学院;南方林业生态应用技术国家工程实验室;湖南会同杉木林生态系统国家重点野外科学观测研究站;美国州长州立大学;贵州省林业调查规划院;中南大学地球科学与物理信息学院 |
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| 基金项目： | 国家林业公益性行业科研专项(201404316);湖南省科技重点研发计划项目(农业支撑领域)(2015NK3025) |
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| 摘 要： | 选取会同县不同林龄(3年生、8年生、18年生、26年生)杉木人工林为研究对象,测定其土壤全磷(TP)、有效磷(Bray1-P)、微生物量磷(MB-P)、无机磷和有机磷组分,利用逐步回归分析和通径分析揭示各土壤磷素因子和理化因子对MB-P影响较大的优势因子。结果显示:(1)4种不同林龄杉木林土壤MB-P含量的平均值为6.90mg/kg。TP和Bray 1-P含量的平均值分别为320.71mg/kg,1.77mg/kg,均属低水平。(2)不同龄林各因子对MB-P的影响:3年林,Bray 1-P,Al-P对MB-P的影响较大;8年林,N/P,LO-P、土壤含水率(W)、MRO-P对MB-P影响突出;18年林,Fe-P,N/P,AlP,Bray 1-P对MB-P的作用明显;26年林,Fe-P,TP对MB-P的影响较大,Ca-P,pH,P%,MLO-P直接或间接地对MB-P产生较大影响。综上,不同林龄各因子对MB-P的影响程度不同。
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| 关 键 词： | 通径分析 微生物量磷 速效磷 无机磷 有机磷 |
Control Factors of Soil Microbial Biomass Phosphorus in Stands of Chinese Fir Plantations With Different Ages in Huitong,Hunan Province |
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| DENG Piaoyun,ZHOU Yunchao,YAN Wende,CHEN Xiaoyong,LIU Mingli,CAO Juan,LIU Qibo.Control Factors of Soil Microbial Biomass Phosphorus in Stands of Chinese Fir Plantations With Different Ages in Huitong,Hunan Province[J].Research of Soil and Water Conservation,2019(1):260-265. |
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| Authors: | DENG Piaoyun ZHOU Yunchao YAN Wende CHEN Xiaoyong LIU Mingli CAO Juan LIU Qibo |
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| Institution: | (College of Forestry,Guizhou University,Guiyang 550025,China;Central South University of Forestry and Technology,Changsha 410004,China;National Engineering Lab for Applied Technology of Forestry&Ecology in South China,Changsha 410004,China;National Key Station for Field Scientific Observation&Experiment,Huitong,Hunan 418307,China;Governors State University,Illinois 60484,USA;Guizhou Forestry Survey and Planning Institute,Guiyang 550003,China;Guizhou Forest Resources Assets Appraisal Limited Company,Guiyang 550003,China;College of Earth Sciences and physical information,Central South University,Changsha 410083,China) |
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| Abstract: | DENG Piaoyun;ZHOU Yunchao;YAN Wende;CHEN Xiaoyong;LIU Mingli;CAO Juan;LIU Qibo(College of Forestry,Guizhou University,Guiyang 550025,China;Central South University of Forestry and Technology,Changsha 410004,China;National Engineering Lab for Applied Technology of Forestry&Ecology in South China,Changsha 410004,China;National Key Station for Field Scientific Observation&Experiment,Huitong,Hunan 418307,China;Governors State University,Illinois 60484,USA;Guizhou Forestry Survey and Planning Institute,Guiyang 550003,China;Guizhou Forest Resources Assets Appraisal Limited Company,Guiyang 550003,China;College of Earth Sciences and physical information,Central South University,Changsha 410083,China) |
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| Keywords: | path analysis microbial biomass P Bray 1-P inorganic phosphorus fraction organic phosphorus fraction |
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