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黄河三角洲芦苇湿地生长季净生态系统CO_2交换及其环境调控机制

文献类型:期刊论文

作者杨利琼1,2; 韩广轩1; 于君宝1; 吴立新3; 朱敏4; 邢庆会1,2; 王光美1; 毛培利1
刊名应用生态学报
出版日期2013
卷号24期号:9页码:2415-2422
关键词净生态系统CO2交换 总初级生产力 生态系统呼吸 芦苇湿地 黄河三角洲
ISSN号1001-9332
其他题名Net ecosystem CO2 exchange and its environmental regulation mechanisms in a reed wetlandin the Yellow River Delta of China during the growth season.
产权排序中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室;中国科学院大学;黄河三角洲国家级自然保护区管理局;鲁东大学地理与规划学院;
通讯作者韩广轩 E-mail:gxhan@yic.ac.cn
中文摘要采用涡度相关法,对2011年生长季的黄河三角洲芦苇湿地净生态系统CO2交换(NEE)进行了观测,研究湿地NEE的变化规律及其影响因子.结果表明:不同月份芦苇湿地的NEE日变化均呈"U"形曲线,CO2最大净吸收率和释放率的日均值分别为(0.44±0.03)和(0.16±0.01)mg CO2·m-2·s-1;芦苇湿地NEE、生态系统呼吸(R eco)、总初级生产力(GPP)的季节变化均呈现生长旺季(7—9月)较高、生长初期(5—6月)和生长末期(10—11月)较低的趋势;R eco和NEE在8月达到峰值,GPP在7月达到峰值.芦苇湿地生态系统的CO2交换受到光合有效辐射(PAR)、土壤温度(T ...
英文摘要By using eddy covariance technique, this paper measured the net ecosystem CO2 ex- change (NEE) in a reed (Phragmites australis) wetland in the Yellow River Delta of China during the growth season of 2011, and investigated the variation patterns of the NEE and related affecting factors. The average diurnal variation of the NEE in different months showed a U-type curve, with the maximum net CO2 uptake rate and release rate being (0.44±0.03) and (0.16±0.01) mg CO_2 ·2 -1 · m · s-1 , respectively. The NEE, ecosystem respiration (Reco) , and gross primary productivity (GPP) were all higher in vigorous growth season (from July to September) and lower in early growth season (from May to June) and late growth season (from October to November). Both Reco and NEE reached their maximum values in August, while GPP reached its peak value in July. Dur- ing the growth season, the ecosystem CO2 exchange was mainly dominated by photosynthetic active radiation ( PAR), soil temperature ( Ts ) , and soil water content (SWC). There was a rectangular hyperbolic relationship between the daytime NEE and PAR. The nighttime ecosystem respiration (R ) was exponentially correlated with the T, at 5 cm depth, and the temoerature sensitivity ofthe ecosystem respiration (Qlo) was 2.30. SWC and Ts were the main factors affecting the R ~ During the entire growth season, the reed wetland ecosystem in the Yellow River delta was an obvi- ous carbon sink, with the total net carbon sequestration being 780.95 g CO2 · m-2
学科主题生态系统与污染生态学
收录类别CSCD
资助信息“十二五”国家科技支撑计划项目(2011BAC02B01);; 中国科学院知识创新工程重要方向项目(KZCX2-YW-223);; 中国科学院“百人计划”项目资助
语种中文
CSCD记录号CSCD:4945093
公开日期2014-07-06
源URL[http://ir.yic.ac.cn/handle/133337/6820]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_滨海湿地实验室
作者单位1.中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室
2.中国科学院大学
3.黄河三角洲国家级自然保护区管理局
4.鲁东大学地理与规划学院
推荐引用方式
GB/T 7714
杨利琼,韩广轩,于君宝,等. 黄河三角洲芦苇湿地生长季净生态系统CO_2交换及其环境调控机制[J]. 应用生态学报,2013,24(9):2415-2422.
APA 杨利琼.,韩广轩.,于君宝.,吴立新.,朱敏.,...&毛培利.(2013).黄河三角洲芦苇湿地生长季净生态系统CO_2交换及其环境调控机制.应用生态学报,24(9),2415-2422.
MLA 杨利琼,et al."黄河三角洲芦苇湿地生长季净生态系统CO_2交换及其环境调控机制".应用生态学报 24.9(2013):2415-2422.

入库方式: OAI收割

来源:烟台海岸带研究所

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