| 长期施肥对春玉米田土壤呼吸及碳平衡的影响研究 |
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| 引用本文： | 程万莉,雷康宁,王淑英,李利利,樊廷录,李尚中,赵刚,张建军,唐小明,党翼,王磊.长期施肥对春玉米田土壤呼吸及碳平衡的影响研究[J].干旱地区农业研究,2019,37(2):108-113. |
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| 作者姓名： | 程万莉 雷康宁 王淑英 李利利 樊廷录 李尚中 赵刚 张建军 唐小明 党翼 王磊 |
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| 作者单位： | 甘肃省农业科学院旱地农业研究所/甘肃省旱作区水资源高效利用重点实验室,甘肃 兰州,730070;甘肃农业大学农学院,甘肃 兰州,730070;平凉市农业科学院,甘肃 平凉,744500 |
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| 基金项目： | 国家自然科学基金(41561067)；国家重点研发计划(2016YFD0300110)；国家玉米产业体系(CARS-02-66)；甘肃省农业科学院中青年基金(2017GAAS71) |
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| 摘 要： | 为探讨不同施肥方式下农田碳平衡规律，研究农田排放到大气CO2的“源”、“汇”特征，依托39 a肥料定位试验测定了秸秆和氮磷肥配施（SNP）、农家肥和氮磷肥配施（MNP）、单施农家肥（M）、氮磷肥配施（NP)、单施氮肥（N）和不施肥（CK）等6种不同施肥方式下西北黄土旱塬春玉米拔节期到成熟期的土壤呼吸。结果表明：长期不同施肥方式能够影响春玉米农田土壤CO2排放，不同生育时期排放特征不同，呈先升高后下降趋势，即开花期达到排放高峰,SNP、MNP和M的CO2排放通量分别达到3 650.54、2 980.50 mg·m-2·h-1和2 167.61 mg·m-2·h-1，与CK相比，分别增加了340.32%、259.51%和161.45%。不同施肥处理间表现为SNP>MNP>M>NP>N>CK。整个测定时期内土壤CO2平均排放速率表现为SNP>MNP>M>NP>N>CK，土壤呼吸中根系呼吸的贡献率波动在31%~77%之间。6种不同施肥处理农田土壤均表现为大气CO2排放的“汇”，不同施肥处理农田碳汇强弱不同，表现为SNP>M>MNP>NP>N>CK。
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| 关 键 词： | 春玉米 施肥方式 CO2排放 碳平衡 长期定位试验 |
Effects of long-term fertilization on soil respiration and carbon balance in spring corn fields |
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| CHENG Wan-li,LEI Kang-ning,WANG Shu-ying,LI Li-li,FAN Ting-lu,LI Shang-zhong,ZHAO Gang,ZHANG Jian-jun,TANG Xiao-ming,DANG Yi,WANG Lei.Effects of long-term fertilization on soil respiration and carbon balance in spring corn fields[J].Agricultural Research in the Arid Areas,2019,37(2):108-113. |
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| Authors: | CHENG Wan-li LEI Kang-ning WANG Shu-ying LI Li-li FAN Ting-lu LI Shang-zhong ZHAO Gang ZHANG Jian-jun TANG Xiao-ming DANG Yi WANG Lei |
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| Institution: | Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,Pingliang Academy of Agricultural Sciences, Pingliang, Gansu 744500, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China,Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China and Dryland Agriculture Institute, Gansu Academy of Agricultural Sciences/ Key Laboratory of Efficient Water Utilization in Dryland Farming of Gansu Province, Lanzhou, Gansu 730070, China |
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| Abstract: | |
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| Keywords: | spring corn fertilization mode CO2 emission carbon balance long-term positioning test |
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