| 北疆绿洲农田夏季土壤CO_2排放特征初步研究 |
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| 引用本文： | 朱新萍,贾宏涛,高文伟,李丽君,陆纪春.北疆绿洲农田夏季土壤CO_2排放特征初步研究[J].新疆农业大学学报,2011(5):423-426. |
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| 作者姓名： | 朱新萍 贾宏涛 高文伟 李丽君 陆纪春 |
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| 作者单位： | 新疆农业大学草业与环境科学学院;新疆农业大学农学院; |
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| 基金项目： | 中国科学院战略性先导科技专项(XDA05050504); 教育部重点项目(209139); 新疆土壤学重点学科资助 |
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| 摘 要： | 利用英国PP-system土壤呼吸测定仪对北疆典型绿洲农田作物棉花、小麦与玉米生态系统的土壤CO2释放日变化进行了研究。结果表明,小麦、玉米和棉花生态系统的土壤CO2排放均具有明显的日变化规律,均为午前大于午后,且小麦与玉米生态系统土壤CO2排放呈平缓曲线,棉花生态系统土壤CO2释放曲线变化较为剧烈;从土壤CO2排放总量来看,夏季日棉花生态系统的土壤排放总量最大,为30.98g CO2/（m2.d）,其次为小麦和玉米生态系统,分别为8.04g CO2/（m2.d）和23.92g CO2/（m2.d）;土壤CO2排放与气温呈明显正相关,相关系数为0.339 6。
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| 关 键 词： | 绿洲农田 CO2排放 日变化 |
Primary Study on the Characteristics of Soil CO_2 Emission in Oasis Farmland in Summer of North Xinjiang |
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| ZHU Xin-ping,JIA Hong-tao,GAO Wen-wei,LI Li-jun,LU Ji-chun.Primary Study on the Characteristics of Soil CO_2 Emission in Oasis Farmland in Summer of North Xinjiang[J].Journal of Xinjiang Agricultural University,2011(5):423-426. |
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| Authors: | ZHU Xin-ping JIA Hong-tao GAO Wen-wei LI Li-jun LU Ji-chun |
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| Institution: | ZHU Xin-ping1,JIA Hong-tao1,GAO Wen-wei2,LI Li-jun1,LU Ji-chun1(1.College of Pratacultural and Environmental Sciences,Xinjiang Agricultural University,Urumqi 830052,China,2.College of Agronomy,China) |
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| Abstract: | The PP-system Soil CO2 Respiration made in England was used to measure and study the daily variation of soil CO2 respiration of farmland crops such as cotton,wheat and corn from the typical oasis farmland in North Xinjiang.The results indicated that the systematic soil CO2 emission of wheat,corn and cotton had obvious daily variation law,which showed that the emission amount of beforenoon were greater than that of afternoon,and the dynamic systematic soil CO2 emission of wheat and corn tended to gentle curv... |
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| Keywords: | oasis farmland CO2 emission daily change |
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