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| 长期不同施肥条件下红壤小麦和玉米季CO_2、N_2O排放特征 | |
| 引用本文： | 黄晶,张杨珠,刘宏斌,王伯仁.长期不同施肥条件下红壤小麦和玉米季CO_2、N_2O排放特征[J].生态与农村环境学报,2011,27(4). |
| 作者姓名： | 黄晶 张杨珠 刘宏斌 王伯仁 |
| 作者单位： | 1. 湖南农业大学资源环境学院,湖南长沙410128;中国农业科学院农业资源与农业区划研究所,北京100081;祁阳农田生态系统国家野外观测研究站,湖南祁阳426182 2. 湖南农业大学资源环境学院,湖南长沙,410128 3. 中国农业科学院农业资源与农业区划研究所,北京,100081 4. 中国农业科学院农业资源与农业区划研究所,北京100081;祁阳农田生态系统国家野外观测研究站,湖南祁阳426182 |
| 基金项目： | 国家重点基础研究发展计划(2005CB121101); 国家科技支撑计划重点项目(2009BADC6B05); 2011年农业生态环境保护项目 |
| 摘 要： | 基于中国农业科学院红壤实验站红壤旱地小麦-玉米轮作长期定位试验,采用静态箱/气相色谱法,研究红壤旱地连续施肥16 a后,不同施肥条件下小麦季和玉米季土壤CO2和N2O的排放特征。结果表明,CO2和N2O排放具有明显的季节性,施肥对土壤CO2和N2O排放有明显影响,且有机肥的施用显著促进了土壤CO2和N2O排放。不施肥对照(CK)、氮磷配施(NP)、氮钾配施(NK)、氮磷钾配施(NPK)和有机无机肥配施(NPKM)处理小麦季和玉米季土壤CO2累积排放量分别为5 904、8 062、4 298、9 235、14 098和4 708、7 530、5 435、7 089、15 472 kg.hm-2,土壤N2O累积排放量分别为0.34、0.63、0.44、0.62、1.00和0.25、0.39、0.35、0.52、1.73 kg.hm-2,小麦休闲期土壤CO2和N2 O累积排放量平均占小麦生长季的63.52%和28.43%,玉米休闲季平均占玉米生长季的49.98%和32.72%,说明休闲期土壤CO2和N2O累积排放量不容忽视。除玉米季NP、NK、NPK处理外,其他各处理小麦季和玉米季土壤CO2排放通量与5 cm深处土... |
| 关 键 词： | 长期施肥 红壤 CO2 N2O 温室气体排放 |
CO_2 and N_2O Emissions From Red Soil During Wheat and Corn Growing Seasons Under Different Patterns of Long-Term Fertilization |
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| HUANG Jing,ZHANG Yang-zhu,LIU Hong-bin,WANG Bo-ren.CO_2 and N_2O Emissions From Red Soil During Wheat and Corn Growing Seasons Under Different Patterns of Long-Term Fertilization[J].Journal of Ecology and Rural Environment,2011,27(4). | |
| Authors: | HUANG Jing ZHANG Yang-zhu LIU Hong-bin WANG Bo-ren |
| Institution: | HUANG Jing1,2,3,ZHANG Yang-zhu1,LIU Hong-bin2,WANG Bo-ren2,3(1.College of Resources and Environment,Hunan Agricultural University,Changsha 410128,China,2.Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,3.National Observation and Research Station of Farmland Ecosystem in Qiyang,Qiyang 426182,China) |
| Abstract: | Fluxes and cumulative emissions of CO2 and N2O from red soil during the wheat and corn seasons under different patterns of long-term fertilization(CK,NP,NK,NPK and NPKM) were monitored by making use of the long-term,16-year wheat-corn rotation experiment on upland red soil in the Qiyang Red Soil Experiment Station,Chinese Academy of Agricultural Sciences.The static dark chamber method and gas chromatograph technique were used to collect and measure concentrations of CO2 and N2O.Results show that emissions o... |
| Keywords: | long-term fertilization red soil CO2 N2O emission of greenhouse gas |
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