首页 | 本学科首页   官方微博 | 高级检索  
     

土壤微生物量碳氮作为土壤肥力指标的探讨
引用本文:薛菁芳,高艳梅,汪景宽,付时丰,祝凤春. 土壤微生物量碳氮作为土壤肥力指标的探讨[J]. 土壤通报, 2007, 38(2): 247-250
作者姓名:薛菁芳  高艳梅  汪景宽  付时丰  祝凤春
作者单位:1. 沈阳农业大学,土地与环境学院,辽宁,沈阳,110161
2. 南京农业大学,资源与环境学院,江苏,南京,210095
基金项目:国家重点基础研究发展计划(973计划)
摘    要:通过对不同肥力水平黑土、棕壤、黄棕壤、红壤土壤微生物量碳氮的比较,研究和探讨土壤微生物量碳氮与土壤肥力的关系。结果表明:有机肥或无机肥施入土壤均能增加土壤微生物量C、N的含量,且有机肥与无机肥配合有显著的正交互作用。土壤微生物量C、N从北到南的地带性变化规律不强。BC/BN及TC/TN从北到南逐渐减小,BC/TC及BN/TN从北到南逐渐增加。相关分析结果表明:土壤微生物量C、N与全C、全N均呈极显著相关,可以作为指示土壤肥力的重要指标。

关 键 词:微生物量碳氮  土壤肥力  指标
文章编号:0564-3945(2007)02-0247-04
修稿时间:2006-03-08

Microbial Biomass Carbon and Nitrogen as an Indicator for Evaluation of Soil Fertility
XUE Jing-fang,GAO Yan-mei,WANG Jing-kuan,FU Shi-feng,ZHU Feng-chun. Microbial Biomass Carbon and Nitrogen as an Indicator for Evaluation of Soil Fertility[J]. Chinese Journal of Soil Science, 2007, 38(2): 247-250
Authors:XUE Jing-fang  GAO Yan-mei  WANG Jing-kuan  FU Shi-feng  ZHU Feng-chun
Abstract:To find out the relationship between soil microbial biomass C and N and soil fertility,soil microbial biomass C and N were compared in several types of soil with different fertilization levels.The results were as follows: both organic and inorganic fertilization increased the amount of soil microbial biomass C and N and chemical fertilizer and organic fertilizer combination had obviously positive interaction.The zone change of soil microbial biomass C and N from north to south was not distinct.MBC/MBN and TC/TN from north to south gradually decreased,but MBC/TC and MBN/TN from north to south gradually increased.The results of correlation analysis showed that soil microbial biomass C and N correlated with soil total organic C and N significantly.Hence,microbial biomass C and N could be considered as an indicator for soil fertility assessment.
Keywords:Microbial biomass carbon and nitrogen  Soil fertilization  Indicator
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号