世界竹藤通讯2024，Vol.22Issue(4)：29-34,6.DOI:10.12168/sjzttx.2024.08.02.001
毛竹林大小年经营模式对土壤有机碳组分含量的影响
Effect of On-Year and Off-Year Management Models on Soil Organic Carbon Componen Contents in Moso Bamboo Forest
摘要
Abstract
Bamboo forests are usually managed on an alternating on-and off-year basis to enhance productivity.However,the impact of the management model on soil carbon sequestration remains unsolved.This study compares the soil nutrient content and organic carbon fractions in moso bamboo plantations between on-and off-years.The results indicate that,compared to the on-year,the moso bamboo forest in the off-year has higher contents of soil total organic carbon(TOC),microbial biomass carbon(MBC),dissolved organic carbon(DOC),easily oxidizable carbon(EOC),iron-and aluminum-bound organic carbon(Fe(Al)-SOC)and calcium-bound organic carbon(Ca-SOC)as well as higher carbon pool management index,while the contents of pH,available(NH4-N+NO3-N)and available phosphorus(AP)are significantly lower.Correlation analysis reveals that TOC,DOC,EOC,Ca-SOC,and Fe(Al)-SOC in soil are significantly negatively correlated with pH,NO3-N,and AP(P<0.05),and significantly positively correlated with NH4-N(P<0.05).These findings suggest that off-year management of moso bamboo forest increases the content of soil organic carbon and its fractions as well as carbon pool management index,and can replenish the soil nutrients and carbon depleted in the on-year,thereby ensuring soil fertility and soil carbon sink.关键词
毛竹/大小年/土壤有机碳组分/经营方式/浙江安吉Key words
moso bamboo/on-year and off-year management/soil organic carbon fractions/management practice/Anji county/Zhejiang province引用本文复制引用
冷利松,周熠,董婉君,吴兆维,张小平,张健,万众..毛竹林大小年经营模式对土壤有机碳组分含量的影响[J].世界竹藤通讯,2024,22(4):29-34,6.基金项目
中央财政林业科技推广示范资金项目(浙[2023]TS11号). （浙[2023]TS11号）
