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肥料施用及环境因子对农田土壤CO2和N2O排放的影响
董玉红; 欧阳竹; 李运生; 张磊
2005
Source Publication农业环境科学学报
ISSN1672-2043
Volume024Issue:005Pages:913
Abstract采用静态箱/气相色谱(GC)法研究了等氮量的肥料施用以及环境因子对农田土壤CO2和N2O排放的影响。结果表明,肥料施用对农田土壤CO2排放的季节模式无明显影响,但是影响了N2O的季节模式。有机肥施用促进了小麦季土壤CO2和N2O的排放,后作玉米季施用化肥的情况下,仃机肥处理的土壤CO2与对照没有显著的差异,N2O排放通量和对照差异显著。虽然是等氮量施入,由于牛粪中有机碳和氮的可降解性要低于猪粪,施入土壤后对土壤中CO2和N2O排放的影响也要低于猪粪处理。除了受肥料施用的影响外,土壤CO2和N2O的排放还受环境因子如土壤温度和土壤水分的影响,相关分析结果表明,土壤CO2排放与大气温度、地表温度、土壤温度和土壤水分均呈显著正相关关系(P〈0.01)。土壤N2O排放只在对照处理中与土壤水分相关显著(P〈0.05),施肥处理中,肥料效应掩盖了土壤温度和水分效应,使得相关性并不显著。
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/128246
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
董玉红,欧阳竹,李运生,等. 肥料施用及环境因子对农田土壤CO2和N2O排放的影响[J]. 农业环境科学学报,2005,024(005):913.
APA 董玉红,欧阳竹,李运生,&张磊.(2005).肥料施用及环境因子对农田土壤CO2和N2O排放的影响.农业环境科学学报,024(005),913.
MLA 董玉红,et al."肥料施用及环境因子对农田土壤CO2和N2O排放的影响".农业环境科学学报 024.005(2005):913.
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