中国科学院机构知识库网格系统: 气温和降雨量对中国湿地生态系统CO

气温和降雨量对中国湿地生态系统CO_2交换的影响

文献类型：期刊论文


作者	初小静 ; 韩广轩
刊名	应用生态学报
出版日期	2015-09-21
卷号	26 期号:10 页码:2978-2990
关键词	气温降雨量中国湿地生态系统CO2交换光响应温度响应
ISSN号	1001-9332
其他题名	Effect of air temperature and rainfall on wetland ecosystem CO2 exchange in China
产权排序	中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室;中国科学院大学;
通讯作者	韩广轩,中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室, Email:gxhan@yic.ac.cn
中文摘要	湿地由于具有较高的初级生产力以及较低的有机质降解速率而成为缓解全球变暖的潜在有效碳汇.虽然近年来中国湿地生态系统CO2交换过程及其影响机制研究取得了一系列进展,但尚缺乏对数据进行系统性整合分析.基于29篇文献的数据,对中国21个典型湿地植被净生态系统CO2交换(NEE)、生态系统呼吸(Reco)、总初级生产力(GPP)、NEE的光响应参数以及Reco的温度响应参数进行整合分析,并探讨了这些指标对温度与降雨的响应.结果表明:年尺度上,气温和降雨量对NEE(R2=50%,R2=57%)、GPP(R2=60%,R2=50%)和Reco(R2=44%,R2=50%)均有显著影响(P<0.05).生长季...
英文摘要	Wetland can be a potential efficient sink to reduce global warming due to its higher primary productivity and lower carbon decomposition rate． While there has been a series progress on the influence mechanism of ecosystem CO2 exchange over China’s wetlands，a systematic metaanalysis of data still needs to be improved． We compiled data of ecosystem CO2 exchange of 21 typical wetland vegetation types in China from 29 papers and carried out an integrated analysis of air temperature and precipitation effects on net ecosystem CO2 exchange ( NEE) ，ecosystem respiration ( Ｒeco ) ，gross primary productivity ( GPP) ，the response of NEE to PAＲ，and the response of Ｒeco to temperature． The results showed that there were significant responses ( P ＜ 0． 05) of NEE ( Ｒ2 = 50% ，Ｒ2 = 57% ) ，GPP ( Ｒ2 = 60% ，Ｒ2 = 50% ) Ｒeco ( Ｒ2 = 44% ，Ｒ2 = 50% ) with increasing air temperature and enhanced precipitation on the annual scale． On the growing season scale，air temperature accounted for 50% of the spatial variation of NEE，36% of GPP and 19% of Ｒeco，respectively． Both NEE ( Ｒ2 = 33% ) and GPP ( Ｒ2 = 25% ) were correlated positively with precipitation ( P ＜ 0． 05) ． However，the relationship between Ｒeco and precipitation was not significant ( P ＞ 0． 05) ． Across different Chinese wetlands，both precipitation and temperature had no significant effect on apparent quantum yield ( α) or ecosystem respiration in the daytime ( Ｒeco，day，P ＞ 0． 05) ． The maximum photosynthesis rate ( Amax ) was remarkably correlated with precipitation ( P ＜ 0． 01) ，but not with air temperature． Besides，there was no significant correlation between basal respiration ( Ｒref ) and precipitation ( P ＞ 0． 05) ． Precipitation was negatively correlated with temperature sensitivity of Ｒeco ( Q10，P ＜ 0． 05) ． Furthermore，temperature accounted for 35% and 46% of the variations in temperature sensitivity of Ｒeco ( Q10 ) and basal respiration ( Ｒref，P ＜ 0． 05) ，respectively．
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:5542336
源URL	[http://ir.yic.ac.cn/handle/133337/17372]
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
作者单位	1.中国科学院烟台海岸带研究所中国科学院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
推荐引用方式 GB/T 7714	初小静,韩广轩. 气温和降雨量对中国湿地生态系统CO_2交换的影响[J]. 应用生态学报,2015,26(10):2978-2990.
APA	初小静,&韩广轩.(2015).气温和降雨量对中国湿地生态系统CO_2交换的影响.应用生态学报,26(10),2978-2990.
MLA	初小静,et al."气温和降雨量对中国湿地生态系统CO_2交换的影响".应用生态学报 26.10(2015):2978-2990.

入库方式： OAI收割

来源：烟台海岸带研究所

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气温和降雨量对中国湿地生态系统CO_2交换的影响

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