A daily and 500 m coupled evapotranspiration and gross primary productionproduct across China during 2000-2020
文献类型：期刊论文
| 作者 | He, Shaoyang1,2; Zhang, Yongqiang2; Ma, Ning2; Tian, Jing2; Kong, Dongdong3; Liu, Changming2 |
| 刊名 | EARTH SYSTEM SCIENCE DATA
 |
| 出版日期 | 2022-12-15 |
| 卷号 | 14期号:12页码:5463-5488 |
| ISSN号 | 1866-3508 |
| DOI | 10.5194/essd-14-5463-2022 |
| 通讯作者 | Zhang, Yongqiang(zhangyq@igsnrr.ac.cn) |
| 英文摘要 | Accurate high-resolution actual evapotranspiration (ET) and gross primary production (GPP) information is essential for understanding the large-scale water and carbon dynamics. However, substantial uncertainties exist in the current ET and GPP datasets in China because of insufficient local ground measurements used for model constraint. This study utilizes a water-carbon coupled model, Penman-Monteith-Leuning Version 2 (PML-V2), to estimate 500 m ET and GPP at a daily scale. The parameters of PML-V2(China) were well calibrated against observations of 26 eddy covariance flux towers across nine plant functional types in China, indicated by a Nash-Sutcliffe efficiency (NSE) of 0.75 and a root mean square error (RMSE) of 0.69 mm d-1 for daily ET, respectively, and a NSE of 0.82 and a RMSE of 1.71 g C m(-2 )d(-1) for daily GPP. The model estimates get a small Bias of 6.28 % and a high NSE of 0.82 against water-balance annual ET estimates across 10 major river basins in China. Further evaluations suggest that the newly developed product is better than other typical products (MOD16A2, SEBAL, GLEAM, MOD17A2H, VPM, and EC-LUE) in estimating both ET and GPP. Moreover, PML-V2(China) accurately monitors the intra-annual variations in ET and GPP in the croplands with a dual-cropping system. The new data showed that, during 2001-2018, the annual GPP and water use efficiency experienced a significant (p < 0.001) increase (8.99 g C m(-2) yr(-2) and 0.02 g C mm-1 H2O yr(-1), respectively), but annual ET showed a non-significant (p > 0.05) increase (0.43 mm yr(-2)). This indicates that vegetation in China exhibits a huge potential for carbon sequestration with little cost in water resources. |
| WOS关键词 | LIGHT USE EFFICIENCY ; COVARIANCE FLUX DATA ; LAND-COVER MAP ; EDDY-COVARIANCE ; PRIMARY PRODUCTIVITY ; BIAS-CORRECTION ; ENERGY-BALANCE ; TERRESTRIAL EVAPOTRANSPIRATION ; ECOSYSTEM RESPIRATION ; CARBON-DIOXIDE |
| 资助项目 | National Key R&D Program of China[2022YFC3002804] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0208] ; National Natural Science Foundation of China[41971032] ; CAS International Partnership Program[183311KYSB20200015] ; Science for a Better Development of Inner Mongolia Program of the Bureau of Science and Technology of Inner Mongolia Province[KJXM-EEDS-2020005] ; IGSNRR Kezhen-Bingwei Young Talents Program |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000899247100001 |
| 资助机构 | National Key R&D Program of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; CAS International Partnership Program ; Science for a Better Development of Inner Mongolia Program of the Bureau of Science and Technology of Inner Mongolia Province ; IGSNRR Kezhen-Bingwei Young Talents Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188249]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Yongqiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100040, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Shaoyang,Zhang, Yongqiang,Ma, Ning,et al. A daily and 500 m coupled evapotranspiration and gross primary productionproduct across China during 2000-2020[J]. EARTH SYSTEM SCIENCE DATA,2022,14(12):5463-5488. |
| APA | He, Shaoyang,Zhang, Yongqiang,Ma, Ning,Tian, Jing,Kong, Dongdong,&Liu, Changming.(2022).A daily and 500 m coupled evapotranspiration and gross primary productionproduct across China during 2000-2020.EARTH SYSTEM SCIENCE DATA,14(12),5463-5488. |
| MLA | He, Shaoyang,et al."A daily and 500 m coupled evapotranspiration and gross primary productionproduct across China during 2000-2020".EARTH SYSTEM SCIENCE DATA 14.12(2022):5463-5488. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。