|
|||||
|
|
| ENSO年代际变化对全球陆地生态系统碳通量的影响 | |
| 引用本文： | 姜超,徐永福,季劲钧,李阳春.ENSO年代际变化对全球陆地生态系统碳通量的影响[J].地学前缘,2011,18(6):107-116. |
| 作者姓名： | 姜超 徐永福 季劲钧 李阳春 |
| 作者单位： | 1. 中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室,北京100029／中国科学院研究生院,北京100049 2. 中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室,北京,100029 3. 中国科学院大气物理研究所,北京,100029 |
| 基金项目： | 国家重点基础研究发展计划“973”项目(2010CB951802);国家自然科学基金项目(40730106) |
| 摘 要： | 使用动态植被陆面模式AVIM2，以NCEP（NationalCenterstorEnvironmentalPrediction）再分析气象资料作为大气强迫场，模拟了1953--2004年全球陆地生态系统净初级生产力（NPP）和净生态系统生产力（NEP）的空间分布及时间变化特征。结果得到，1953—2004年陆地生态系统... |
| 关 键 词： | 陆地生态系统 AVIM2 净初级生产力 净生态系统生产力 陆地碳通量 |
Influences of the decadal variation of ENSO on the carbon flux in the terrestrial ecosystems |
|
| Jiang Chao,Xu Yongfu,Ji Jinjun,Li Yangchun.Influences of the decadal variation of ENSO on the carbon flux in the terrestrial ecosystems[J].Earth Science Frontiers,2011,18(6):107-116. | |
| Authors: | Jiang Chao Xu Yongfu Ji Jinjun Li Yangchun |
| Institution: | 1.LAPC,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3.Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China |
| Abstract: | The Atmosphere Vegetation Interaction Model version 2(AVIM2)is used to make an offline simula-tion of terrestrial carbon cycle and its response to climatic variation under the forcing of the meteorological reanalysis data from the National Center for Environmental Prediction.The spatial distribution and its tempo-ral characteristics of global net primary production(NPP)and net ecosystem production(NEP)in the terres-trial ecosystem are simulated from 1953to 2004.Results show that 52-year averaged global NPP and NEP from 1953to 2004are 65Pgc/a and 1.2Pgc/a respectively,and reveal that NPP obviously increases with time,while the trend of increase in NEP is not statistically significant.Although the trends of decadal increases in NPP and NEP are different,in the middle of the 1970stheir decadal changes all revealed an abrupt change.Their growing trends were all decreased after the abrupt point.This is because the Pacific decadal oscillation(PDO)affected the decadal change of El Nin～o-Southern Oscillation(ENSO),which also affected the decadal variation of NPP and NEP.Before 1976,when PDO was in the cool phase,the strength and frequency of the cool phase of ENSO was increased,which led to the cooler and humid climate in the tropical region so that it was beneficial to the increase in NPP and NEP.On the contrary,while the PDO was in a warm phase after 1976,El Nin～o took place frequently,so that in the equatorial region the drier and warmer climate reduced the increasing trends of NPP and NEP. |
| Keywords: | terrestrial ecosystem AVIM2 NPP NEP land carbon flux |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《地学前缘》浏览原始摘要信息 | |
| 点击此处可从《地学前缘》下载免费的PDF全文 | |