期刊论文

Soil Fertility Analysis and Comprehensive Evaluation of Four Typical Forest Stands in Fushou Forest Farm

中文

西部林业科学

1672-8246

2021

50

6

53-60,75

10.16473/j.cnki.xblykx1972.2021.06.008

19A518:湖南省教育厅重点科研项目 2018JJ2673:湖南省自然科学基金面上项目

本校为第一机构

以湖南省平江县福寿林场杉木纯林、杉木混交林、栎类次生林和竹林为研究对象,选取土壤有机质、碱解氮、全氮、全磷、速效钾、速效磷、土壤容重和pH值8个评价指标对4种不同林分的土壤肥力进行综合对比分析,并基于乘除法计算原理,构建林分土壤肥力综合评价指数,确定其土壤肥力评价等级。结果显示:（1）在0～60 cm土层中,栎类次生林土壤有机质、碱解氮、速效磷、全磷、全氮含量均为最大,竹林土壤pH值和容重均为最大,杉木纯林速效钾含量显著高于其它3种林分。（2）从土壤剖面垂直变化特征来看,4种林分有机质、碱解氮与全氮含量,均表现为随土层的增加而逐渐下降,其中栎类次生林各土层有机质含量均显著...

Taking the soil of Cunninghamia lanceolate forest,Cunninghamia lanceolate mixed forest,oak natural secondary forest,bamboo forest in Fushou Forest Farm of Pingjiang County,Hunan Province as the research objects,the soil fertility of these four kinds of forests were compared and analyzed.By selecting 8 indexes of soil organic matter,pH value,total nitrogen,total phosphorus,available phosphorus,available potassium,available nitrogen and soil bulk density,the comprehensive evaluation index of soil fertility of stand was constructed to determine the evaluation level of soil fertility based on the ...