| 土壤微生物量碳氮作为土壤肥力指标的探讨 |
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| 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. |
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| 作者姓名： | 薛菁芳 高艳梅 汪景宽 付时丰 祝凤春 |
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| 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 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 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。
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| 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年3月8日 |
Microbial Biomass Carbon and Nitrogen as an Indicator for Evaluation of Soil Fertility |
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| 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. |
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| Authors: | XUE Jing-fang GAO Yan-mei WANG Jing-kuan FU Shi-feng ZHU Feng-chun |
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| 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. |
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| Keywords: | Microbial biomass carbon and nitrogen Soil fertilization Indicator |
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