广西林业科学2023，Vol.52Issue(6)：682-686,5.DOI:10.19692/j.issn.1006-1126.20230601
不同油茶品系叶片-土壤C、N和P含量及其化学计量特征
Contents of C,N and P and Their Stoichiometric Characteristics in Leaves and Soils of Different Youcha(Camellia)Strains
摘要
Abstract
To understand nutrient utilization and soil nutrient limitations of different Youcha(Camellia)strains,taking Camellia oleifera Cenruan 2,Camellia oleifera Cenruan 3 and Camellia osmantha 1 as research objects,contents of carbon(C),nitrogen(N)and phosphorus(P)and their stoichiometric characteristics in leaves and soils of different Youcha(Camellia)strains were analyzed.Results showed that orders of contents of C and P in leaves were C.osmantha 1>C.oleifera Cenruan 2>C.oleifera Cenruan 3,while order of content of N in leaves was C.osmantha 1>C.oleifera Cenruan 3>C.oleifera Cenruan 2.N∶P in leaves of different Youcha(Camel-lia)strains were all 14-16,which indicated that these strains were limited by both N and P.With increase of soil depth,contents of C,N and P in soils all decreased,while C∶P and N∶P in soils increased.Contents of C,N and P in leaves and their stoichiometric characteristics of C.oleifera Cenruan 2,C.oleifera Cenruan 3 had significantly negative correlations with indexes of soils,and contents of N,P in leaves of C.osmantha 1 had sig-nificantly positive correlations with N∶P in soils.Growths of different Youcha(Camellia)strains were limited by N and P.Plant growth may be limited by P with increase of soil depth.关键词
叶片养分/土壤养分/化学计量/油茶Key words
leaf nutrient/soil nutrient/stoichiometry/Youcha(Camellia)分类
林学引用本文复制引用
吕琪,陈昱宇,吴方圆,余振东,谢伟东,韦祥悦..不同油茶品系叶片-土壤C、N和P含量及其化学计量特征[J].广西林业科学,2023,52(6):682-686,5.基金项目
广西重点研发计划项目(桂科AB18294042) （桂科AB18294042）
广西创新驱动发展专项资金项目(桂科AA20302021-4) （桂科AA20302021-4）
