应用静态箱/气相色谱法,测定了若尔盖高原沼泽N2O排放能量,测定期为该地植物生长期,即2004年4月末至10月初。结果表明,若尔盖高原沼泽湿地N2O排放通量平均值为0.010mg·m-2h-1,最大值为0.079mg·m-2h-1,最小值为-0.051mg·m-2h-1。高峰排放期为5月,最低排放期为地表水深最大的6月。沼泽湿地N2O排放通量季节变化与沼泽湿地水深呈负相关关系。沼泽湿地N2O排放通量日变化与大气温度呈正相关关系,排放高值出现在午后。若尔盖高原沼泽湿地在植物生长期的年排放总量约为0.159Gg·a-1。
Ruoergai plateau mire is the largest distribution area of plateau peat mire in China.From the end of April to early October of 2004, the N2O flux was measured with the closed chamber/GC technique in Ruoergai plateau mire.The mean value of N2O flux was 0.010 mg·m-2h-1, the max value was 0.079 mg·m-2h-1, and the minimum was -0.051 mg·m-2h-1 from the mire.Seasonal change of N2O flux was negatively correlated with water depth in mire.Diurnal N2O flux was positively correlated with air temperature and peak value was found in the afternoon.In the plant growing season, total quantity of N2O emission from mire was about 0.159·a-1 in Rouergai plateau.
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若尔盖高原沼泽湿地N2O排放通量研究
作者: 王德宣, 宋长春, 王跃思, 王毅勇, 阎百兴, 赵志春, WANG De-xuan, SONG Chang-
chun, WANG Yue-si, WANG Yi-Yong, YAN Bai-xing, ZHAO Zhi-Chun
作者单位: 王德宣,宋长春,王毅勇,阎百兴,赵志春,WANG De-xuan,SONG Chang-chun,WANG Yi-Yong,YAN
Bai-xing,ZHAO Zhi-Chun(中国科学院利地理与农业生态研究所,吉林,长春,130012), 王跃
思,WANG Yue-si(中国科学院大气物理研究所,北京,100083)
刊名: 生态科学
英文刊名: ECOLOGIC SCIENCE
年,卷(期): 2005,24(3)
被引用次数: 5次
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引证文献(5条)
1.牟长城.石兰英.孙晓新 小兴安岭典型草丛沼泽湿地CO2、CH4和N2O的排放动态及其影响因素[期刊论文]-植物生
态学报 2009(3)
2.孙志高.刘景双.杨继松.牟晓杰.王玲玲 生长季与非生长季小叶章湿地N_2O通量特征及排放贡献[期刊论文]-草业
学报 2009(6)
3.尤勇.蒋跃林 植物生长及环境因子对麦田N2O通量的影响[期刊论文]-安徽农学通报 2009(10)
4.孙志高.刘景双.于君宝.衣华鹏 湿地土壤NH3挥发、N2O释放过程及影响因素[期刊论文]-湿地科学 2008(3)
5.孙艳丽.陆佩玲.李俊.于强.孙善彬.王吉顺.欧阳竹 华北平原冬小麦/夏玉米轮作田土壤N2O通量特征及影响因素
[期刊论文]-中国农业气象 2008(1)
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