Simulating solar-induced chlorophyll fluorescence in a boreal forest stand reconstructed from terrestrial laser scanning measurements
文献类型：期刊论文
| 作者 | Liu, Weiwei2,3,4; Atherton, Jon4; Mottus, Matti5; Gastellu-Etchegorry, Jean-Philippe6; Malenovsky, Zbynek7; Raumonen, Pasi1; Akerblom, Markku1; Makipaa, Raisa8; Porcar-Castell, Albert4 |
| 刊名 | REMOTE SENSING OF ENVIRONMENT
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 232页码:15 |
| 关键词 | Boreal forest Silver birch LiDAR DART Solar-induced chlorophyll fluorescence Red SIF Far-red SIF Understory TreeQSM FaNNI |
| ISSN号 | 0034-4257 |
| DOI | 10.1016/j.rse.2019.111274 |
| 通讯作者 | Liu, Weiwei(lww@lreis.ac.cn) |
| 英文摘要 | Solar-induced chlorophyll fluorescence (SIF) has been shown to be a suitable remote sensing proxy of photosynthesis at multiple scales. However, the relationship between fluorescence and photosynthesis observed at the leaf level cannot be directly applied to the interpretation of retrieved SIF due to the impact of canopy structure. We carried out a SIF modelling study for a heterogeneous forest canopy considering the effect of canopy structure in the Discrete Anisotropic Radiative Transfer (DART) model. A 3D forest simulation scene consisting of realistic trees and understory, including multi-scale clumping at branch and canopy level, was constructed from terrestrial laser scanning data using the combined model TreeQSM and FaNNI for woody structure and leaf insertion, respectively. Next, using empirical data and a realistic range of leaf-level biochemical and physiological parameters, we conducted a local sensitivity analysis to demonstrate the potential of the approach for assessing the impact of structural, biochemical and physiological factors on top of canopy (TOC) SIF. The analysis gave insight into the factors that drive the intensity and spectral properties of TOC SIF in heterogeneous boreal forest canopies. DART simulated red TOC fluorescence was found to be less affected by biochemical factors such as chlorophyll and dry matter contents or the senescent factor than far-red fluorescence. In contrast, canopy structural factors such as overstory leaf area index (LAI), leaf angle distribution and fractional cover had a substantial and comparable impact across all SIF wavelengths, with the exception of understory LAI that affected predominantly far-red fluorescence. Finally, variations in the fluorescence quantum efficiency (Fqe) of photosystem II affected all TOC SIF wavelengths. Our results also revealed that not only canopy structural factors but also understory fluorescence should be considered in the interpretation of tower, airborne and satellite SIF datasets, especially when acquired in the (near-) nadir viewing direction and for forests with open canopies. We suggest that the modelling strategy introduced in this study, coupled with the increasing availability of TLS and other 3D data sources, can be applied to resolve the interplay between physiological, biochemical and structural factors affecting SIF across ecosystems and independently of canopy complexity, paving the way for future SIF-based 3D photosynthesis models. |
| WOS关键词 | GROSS PRIMARY PRODUCTION ; CANOPY REFLECTANCE ; VEGETATION FLUORESCENCE ; PHOTOSYNTHETIC CAPACITY ; PIGMENT COMPOSITION ; LIGHT-SCATTERING ; LEAF ; MODEL ; TEMPERATE ; EMISSION |
| 资助项目 | UCAS[UCAS [2015] 37] ; Academy of Finland[293443] ; Academy of Finland[288039] ; Academy of Finland[266152] ; Academy of Finland[317387] ; Australian Research Council[FT160100477] |
| WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000486355300062 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | UCAS ; Academy of Finland ; Australian Research Council |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/129558]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Weiwei |
| 作者单位 | 1.Tampere Univ Technol, Lab Math, POB 692, FI-33101 Tampere, Finland 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, LREIS, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Helsinki, Opt Photosynth Lab, Inst Atmospher & Earth Syst Res INAR Forest Sci, POB 27, FIN-00014 Helsinki, Finland 5.VTT, VTT Tech Res Ctr Finland, POB 1000, Espoo 02044, Finland 6.Univ Paul Sabatier, Ctr Study Biosphere Space CESBIO, CNRS, CNES,IRD,Univ Toulouse, 18 Ave Edouard Belin, F-31401 Toulouse, France 7.Univ Tasmania, Sch Technol Environm & Design, Geog & Spatial Sci, Private Bag 76, Hobart, Tas 7001, Australia 8.Nat Resources Inst Finland, Latokartanonkaari 9, FI-00790 Helsinki, Finland |
| 推荐引用方式 GB/T 7714 | Liu, Weiwei,Atherton, Jon,Mottus, Matti,et al. Simulating solar-induced chlorophyll fluorescence in a boreal forest stand reconstructed from terrestrial laser scanning measurements[J]. REMOTE SENSING OF ENVIRONMENT,2019,232:15. |
| APA | Liu, Weiwei.,Atherton, Jon.,Mottus, Matti.,Gastellu-Etchegorry, Jean-Philippe.,Malenovsky, Zbynek.,...&Porcar-Castell, Albert.(2019).Simulating solar-induced chlorophyll fluorescence in a boreal forest stand reconstructed from terrestrial laser scanning measurements.REMOTE SENSING OF ENVIRONMENT,232,15. |
| MLA | Liu, Weiwei,et al."Simulating solar-induced chlorophyll fluorescence in a boreal forest stand reconstructed from terrestrial laser scanning measurements".REMOTE SENSING OF ENVIRONMENT 232(2019):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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