湘南山区油茶林地土壤养分状况调查与评价——以桂东县为例  

Investigation and Evaluation of Soil Nutrients of Camellia Plantation in the Mountainous Area of South Hunan——A Case Study of Guidong County

作　　者：吴海勇[1] 刘利忠 李明德[1] 谷雨[1] 周峻宇 刘琼峰[1] WU Hai-yong;LIU Li-zhong;LI Ming-de;GU Yu;ZHOU Jun-yu;LIU Qiong-feng(Soil and Fertilizer Institute of Hunan Province,Changsha 410125,PRC;Guidong County Liyuan Ecological Agricultural Products Development Co.,Ltd,Guidong 423500,PRC)

机构地区：[1]湖南省土壤肥料研究所,湖南长沙410125 [2]桂东县力源生态农产品开发有限公司,湖南桂东423500

出　　处：《湖南农业科学》2022年第5期45-47,共3页Hunan Agricultural Sciences

基　　金：中央引导地方科技发展专项资金项目(2020ZYQ064);湖南创新型省份建设专项(2020NK4213)。

摘　　要：结合野外调查取样和实验室分析方法,以湘南典型山区(桂东县)油茶林地为研究区域,调查了油茶林的肥料施用现状,分析和评价了油茶林的土壤pH值、有机质、大中微量元素含量等水平。结果表明:湘南山区油茶林地土壤呈酸性,土壤有效铁属于高水平,有机质、全氮、全钾含量都处于中等水平,速效钾和有效锌处于低水平,全磷、交换性钙镁、有效锰、有效铜、有效硼等属于极低水平,土壤符合富硒标准。建议当地油茶林增施磷钾肥和微量元素肥,并改良施肥方式。Combined with field sampling and laboratory analysis,the present fertilization status of Camellia (Camellia oleifera) plantation in Guidong County,one typical mountainous area of South Hunan,was investigated.The soil pH value,organic matter,and macro-,medium and trace element contents were also analyzed.Results showed that the soil of Camellia plantations in the mountainous area of South Hunan was acidic;the concentration of soil available iron was at high level;the organic matter,total nitrogen and total potassium contents were at medium level,while the contents of available potassium and available zinc were at low level,and those of total phosphorus,exchangeable calcium and magnesium,available manganese,available copper and available boron were at extremely low level.Besides,the soil accorded with the standard of selenium-rich.It is suggested that the local Camellia plantation in the study area should apply more phosphorus,potassium and trace element fertilizers along with improving the fertilization pattern.

关 键 词：山区 油茶 林地 土壤养分 桂东 

分 类 号：S158.3[农业科学—土壤学]