摘要
【目的】探明张广才岭林区不同森林类型土壤养分特征,为了解该区植被与土壤的关系以及维持土壤肥力提供参考。【方法】选取具有代表性的阔叶红松林、阔叶混交林、蒙古栎林、落叶松林、云冷杉林为研究对象,系统地分析各林分土壤有机质(SOM)、全氮(TN)、全磷(TP)、速效氮(AN)、有效磷(AP)的分布特征,同时对土壤养分状况进行综合质量评价。【结果】张广才岭林区土壤SOM、TN、TP、AP在不同林型间差异显著,SOM、TN 2种土壤养分的总体分布是阔叶混交林最高,云冷杉林和阔叶红松林次之,蒙古栎林和落叶松林最低;TP和AP均在云冷杉林土壤中最高,落叶松林中最低;AN在各林型内差异不显著。【结论】张广才岭林区土壤SOM和AN含量丰富,不同林型土壤养分总体处于优良水平,但TN缺乏为该林区土壤质量的主要限制因素。
【Objective】The soil nutrient characteristics of different forest types are discussed to understand the relationship between vegetation and soil,and provide a reference for maintenance of soil fertility in Zhangguangcai Mountains.【Method】The distribution characteristics of soil organic matter(SOM),total nitrogen(TN),total phosphorus(TP),available nitrogen(AN)and available phosphorus(AP)of five typical forests(broad-leaved Korean pine forest,broad-leaved mixed forest,larch forest,Quercus mongolica forest and spruce fir forest)is systematacially analyzed.The soil nutrient quality is comprehensively evaluated at the same time.【Result】There are significant differences in SOM,TN,TP and AP between different forest types.The population distribution of SOM and TN is the highest in broad-leaved mixed forest,followed by spruce fir forest,broad-leaved Korean pine mixed forest,Quercus mongolica forest and larch forest.The distribution of TP and AP is the highest in spruce fir forest and the lowest in larch forest.There is no significant difference in AN between different forests.【Conclusion】There is rich in SOM and AN in Zhangguangcai mountain.The soil nutrients in different forest types are at an excellent level generally but the deficient TN is the main limiting factor to affecting soil quality in Zhangguangcai Mountains.
作者
刘玉龙
陈瑶
刘延坤
李云红
LIU Yulong;CHEN Yao;LIU Yankun;LI Yunhong(Key Laboratory of Forest Ecology and Forestry Ecological Engineering,Heilongjiang Ecology Institute,Harbin,Heilongjiang 150081;Mudanjiang Forest Ecosystem Research Station,Mudanjiang,Heilongjiang 157500,China)
出处
《贵州农业科学》
CAS
2023年第5期28-34,共7页
Guizhou Agricultural Sciences
基金
黑龙江省省属科研院所科研业务费项目“基于养分元素计量和重吸收解析珍稀树种濒危机制”(CZKYF2022-1-C024)
“系统发育多样性对针阔混交林生产力影响机制”(CZKYF2021-2-C006)
“东北红豆杉种群扩散、定植过程及其距离效应”(CZKYF2021B006)
黑龙江省重点研发计划项目“黑龙江省生态屏障功能研究”(GA21C030)
黑龙江省森林工业总局应用研究项目“龙江森工森林生态系统碳汇功能评价与动态管理技术”(sgzjY2018001)
2020年度黑龙江省属科研院所业务费项目“森林生态屏障保育与资源利用国家技术创新中心”(CZKYF2020A003)。
关键词
森林类型
土壤养分
土壤质量
综合评价
张广才岭
forest type
soil nutrient
soil quality
comprehensive assessment
Zhangguangcai Mountains
