广西林业科学2023，Vol.52Issue(6)：733-738,6.DOI:10.19692/j.issn.1006-1126.20230609
不同林龄肉桂人工林土壤养分状况及肥力评价
Soil Nutrient Status and Fertility Evaluation of Cinnamomum cassia Plantations at Different Stand Ages
摘要
Abstract
In other to understand soil nutrient status of Cinnamomum cassia plantations at different stand ages in eastern Guangxi and provide scientific basis for soil nutrient management and scientific fertilization in main C.cassia producing areas,taking nine C.cassia plantations as experimental objects,second national soil survey nutrient grading standard and grey correlation analysis method were used for soil nutrient status analysis and comprehensive evaluation of soil fertility.Results showed that soils of C.cassia plantations at different stand ag-es were acidic or strongly acidic.Contents of total P,available P,exchangeable Ca,exchangeable Mg and avail-able B were at extremely poor levels.Contents of available K,exchangeable Mn were at poor levels.Contents of organic matter and total N were at middle levels.Contents of total K and available Cu were at below middle lev-els.Content of available Zn was at above middle level.Contents of alkali-hydrolyzed N and available Fe were at rich or extremely rich levels.Correlation degrees of soil fertility were 0.395～0.671 with average value of 0.527.Soil fertility generally belonged to Grade Ⅳ(poor).Soil fertilities of 3 sample points belonged to GradeⅢ(general),5 sample points belonged to Grade Ⅳ(poor),and 1 sample plot belonged to GradeⅤ(extremely poor).Organic matter,total N,available P,available B and available K were main factors affecting soil fertility.关键词
土壤养分/肥力评价/灰色关联度/肉桂Key words
soil nutrient/fertility evaluation/grey correlation degree/Cinnamomum cassia分类
林学引用本文复制引用
覃其云,张帅,贝荣趣,唐健,莫大旺,王会利..不同林龄肉桂人工林土壤养分状况及肥力评价[J].广西林业科学,2023,52(6):733-738,6.基金项目
广西科技计划项目(桂科AD20297118) （桂科AD20297118）
中央引导地方科技发展资金项目(桂科ZY21195026) （桂科ZY21195026）
