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不同林下植被管理杉木人工林土壤全量养分季节动态
作者姓名:黄樱  费裕翀  路锦  李玲燕  曹光球
作者单位:福建农林大学 林学院,福建 福州 350000;福建农林大学 林学院,福建 福州 350000;国家林业和草原局 杉木工程技术研究中心,福建 福州 350000
基金项目:国家重点研发计划项目(2016YFD0600301);福建省科技厅引导性项目(2018N0001)。
摘    要:目的]为杉木大径材培育林地力修复提供理论参考.方法]以杉木大径材培育林为研究对象,分析了林下植被保留(UP)和林下植被去除(UR)下土壤全量养分的季节动态变化.结果]UP处理下的夏季和秋季土壤全碳含量显著高于春季;土壤全氮含量以夏季和秋季较高;土壤全磷含量呈冬季>秋季>夏季>春季;土壤全钾含量以秋季最高,春季最低...

关 键 词:杉木  林下植被管理  季节动态  全量养分

Seasonal Dynamics of Total Soil Nutrients in Cunninghamia lanceolata Plantation under Different Undergrowth Vegetation Management
Authors:HUANG Ying  FEI Yuchong  LU Jin  LI Linyan  CAO Guangqiu
Affiliation:(College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,350000,China;Chinese Fir Engineering Technology Research Center,National Forestry and Grassland Administration,Fuzhou,350000,China)
Abstract:【Objective】It provides a theoretical reference for soil fertility restoration of large diame?ter plantation ofCunninghamia lanceolata.【Method】The cultivation plantation of large diameter timber ofCunninghamia lanceolata was taken as the research object,and the seasonal dynamic changes of total soil nutrients under undergrowth vegetation preservation(UP)and undergrowth vegetation removal(UR)were analyzed.【Results】The total carbon content of soil in summer and autumn under UP treat?ment was significantly higher than that in spring.Soil total nitrogen content was higher in summer and autumn.The total phosphorus content of soil was>in winter>in autumn>in summer>spring;The total potassium content was the highest in autumn and the lowest in spring;Soil total calcium content under UP treatment showed no significant difference among seasons,while soil total calcium content under UR treat?ment was the highest in winter and the lowest in spring;The contents of total magnesium and manganese in soil were higher in autumn and winter and lower in spring and summer;There was a small difference in total carbon content between UP and UR treatments;The total nitrogen content and total manganese con?tent in soil under UP treatment were generally higher than those under UR treatment,and the total manga?nese content between UP and UR reached a significant level in winter.The total phosphorus content,total potassium content,total calcium content and total magnesium content in soil under UR treatment were generally higher than those under UP treatment,and the total calcium content between UP and UR reached significant levels in seasons.【Conclusion】The results showed that the total soil nutrients of cul?tivation plantation of large diameter timber ofCunninghamia lanceolata were different in different seasons.
Keywords:Cunninghamia lanceolate  understory vegetation management  seasonal dynamics  total nutrient
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