| Responses of land evapotranspiration to Earth's greening in CMIP5 Earth System Models | |
| Zeng, ZZ (Zeng, Zhenzhong)1; Zhu, ZC (Zhu, Zaichun)1; Lian, X (Lian, Xu)1; Li, LZX (Li, Laurent Z. X.)2; Chen, AP (Chen, Anping)3; He, XG (He, Xiaogang)4; Piao, SL (Piao, Shilong)1,5; Piao, SL | |
| Source Publication | ENVIRONMENTAL RESEARCH LETTERS
 |
| 2016 | |
| Volume | 11Issue:10Pages:104006 |
| DOI | 10.1088/1748-9326/11/10/104006 |
| Abstract | Satellite-observed Earth's greening has been reproduced by the latest generation of Earth System Models (ESMs) participating in the Coupled Model Intercomparison Project Phase 5 (CMIP5). Land evapotranspiration (ET) is expected to rise with increasing leaf area index (LAI, Earth's greening). The responses of ET play a key role in the land-climate interaction, but they have not been evaluated previously. Here, we assessed the responses of ET to Earth's greening in these CMIP5 ESMs. We verified a significant and positive response of ET to the modeled greening in each model. However, the responses were not comparable across the ESMs because of an inherent bias in the sensitivity of ET to LAI(partial derivative ET/partial derivative LAI) in the models: partial derivative ET/partial derivative LAI is precisely and inversely proportional to the trend of LAI (partial derivative LAI/partial derivative t) across the ESMs. Constrained by this inversely proportional relationship with the satellite-observed partial derivative LAI/partial derivative t, the Earth's partial derivative ET/partial derivative LAI is 0.26 (0.21-0.34) mm d(-1) per m(2) m(-2), equaling the independent estimates from satellite-derived reconstructions of ET and LAI. Thus, the Earth's greening-induced acceleration of ET is about 11.4 mm yr(-1), accounting for more than 50% of the observed increase in land ET over the last 30 years. To better model the land-climate interaction, partial derivative ET/partial derivative LAI in these ESMs should be calibrated. A feasible means is to improve the representation of the magnitude of LAI in these CMIP5 ESMs. |
| Subject Area | 普通生物学 |
| WOS ID | WOS:000388472700002 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Leaf-area Index Northern Ecosystems Forest Growth Climate Carbon Water Transpiration Variability Sensitivity Exchange |
| Cooperation Status | 国际 |
| Department | 生态 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7540 |
| Collection | 图书馆 |
| Corresponding Author | Piao, SL |
| Affiliation | 1.Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 2.Univ Pierre & Marie Curie Paris 6, CNRS, Lab Meteorol Dynam, F-75252 Paris, France 3.Woods Hole Res Ctr, Falmouth, MA 02540 USA 4.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China |
| Recommended Citation GB/T 7714 | Zeng, ZZ ,Zhu, ZC ,Lian, X ,et al. Responses of land evapotranspiration to Earth's greening in CMIP5 Earth System Models[J]. ENVIRONMENTAL RESEARCH LETTERS,2016,11(10):104006. |
| APA | Zeng, ZZ .,Zhu, ZC .,Lian, X .,Li, LZX .,Chen, AP .,...&Piao, SL.(2016).Responses of land evapotranspiration to Earth's greening in CMIP5 Earth System Models.ENVIRONMENTAL RESEARCH LETTERS,11(10),104006. |
| MLA | Zeng, ZZ ,et al."Responses of land evapotranspiration to Earth's greening in CMIP5 Earth System Models".ENVIRONMENTAL RESEARCH LETTERS 11.10(2016):104006. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.11(10) 104006 2016（2407KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment