亚热带野生杜鹃群落土壤磷组分含量及其影响因素
打开文本图片集
中图分类号：S718.5 文献标识码：A 文章编号：1006-060X（2025）08-0036-06
Content of Phosphorus Fractions and Its Influencing Factors in the Soil of Wild Rhododendron fortunei in the Subtropical Zone
CHU Bin1²， ZHANG Min-huan¹，LIU Sheng-yuan1，LIU Yan²³，CHEN Chan²³，WU Lin-shi²，LIN Yu-wen4， LIAO Ju-yang2，3
（1.CentralSouthUesityofFrestryndTholgCangshOoC;2tioalForstryGassndRddedo EngineringToloechetes1C;.acalGdenh16;4 LandscapeArchitectureandArt Design，HunanAgricultural University，Changsha 4iOl28，PRC）
Abstract：ThewildRhododendronfortuneiLindl.inYangmingshanNationalForestPark，HunanProvincewasselectedtostudy thecontentofsoilphosphorusfractionsanditsinfuencingfactors.zospheresoilandnon-zospheresoilsmpleswerecoected to determine thecontentof phosphorus fractions and physiochemical properties，onthe basisof which the soil phosphorus pool variations wereanalyed.Furthermore，the Mantel-test wasperforedtoexplore thecorelations betweensoilphosphoruspool andenvironmentalfactors.Theresultsshowedthat thecontentofdiferent phosphorus fractionsinthesoilofR.fortuneiLndl.in Yangmingshanweresignificantlydiferentbetweentherhzosphereandnon-hizosphereareas.Thehzospheresoilhadinsignificantly higher contentofavailable phosphorus thanthe non-rhizosphere soil.Thecontentoflabilephosphorus and moderately labile phosphorus in rhizosphere soil was significantly higher than that in non-rhizosphere soil （P<0.05） .However，the content of non-labile phosphorus in rhizosphere soil was very significantly lower than that in the non-rhizosphere soil （223.92mg/kg Vs. 508.60mg/kg P< 0.001）.hedataindicatedthatthephosphorusinizospheresoilmainlyexistedinthelabileandmoderatelylabilefos，whilethat innon-hizospresolmalyexistedintheon-abileforSignifcantpositiecorelatioseefoundforsoilammomtogen totalnitrogen，totalbon，dsoilanicbonitilpsposabilityrouctionpproatelyeasgt of nitrogen and organic fertilizer can promote the uptake and utilization of phosphorus by R. fortunei Lindl.
Key words：RhododendronfortuneiLindl.;soilphosphorus fraction;soilphysicochemical properties;phosphorusavailability
磷素（P）是植物生长发育必需的重要营养元素，也是维系整个森林生态系统养分循环的关键元素之一。（剩余12140字）
