Energy partitioning is linked to cloudiness in plantation forests in eastern China
文献类型：期刊论文
| 作者 | Liu, Peirong1,5; Tong, Xiaojuan1; Zhang, Jinsong2,3; Li, Jun4; Zhang, Jingru1,6; Yu, Peiyang1; Zhou, Yu2,3 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2024-04-15 |
| 卷号 | 349页码:16 |
| ISSN号 | 0168-1923 |
| 关键词 | Energy partitioning Cloudiness Temperature Vapor pressure deficit Relative extractable soil water Plantation |
| DOI | 10.1016/j.agrformet.2024.109936 |
| 通讯作者 | Tong, Xiaojuan(tongxj@bjfu.edu.cn) |
| 英文摘要 | Cloudiness influences gross primary productivity and evapotranspiration in terrestrial ecosystems by increasing diffuse radiation and improving the photosynthesis of shaded leaves. However, the effect of cloudiness on energy partitioning in terrestrial ecosystems is not well understood. Using latent heat (LE) and sensible heat (H) datasets observed by the eddy covariance systems and meteorological variables, the regulation of biophysical factors on energy partitioning under different sky conditions was investigated at 6 plantation ecosystems (2 deciduous broadleaf and 4 coniferous plantations) in eastern China from 2019 to 2021. The averages of evaporative fraction (EF) during the growing season were 0.34 +/- 0.06-0.50 +/- 0.04. The EF values increased by 16-49% on cloudy days, which was attributed to the lower decrease in LE compared to H. On the half-hourly scale, EF was mainly driven by air temperature (Ta), relative extractable soil water (REW) and clearness index (CI) (i.e., a metric to quantify cloudiness). For plantation ecosystems, CI had an indirect effect on EF mainly through net radiation (Rn). Moreover, the positive effect of cloudy sky conditions on EF was higher under low Ta, vapor pressure deficit (VPD) and REW conditions. The increment of EF on cloudy days was weaker at high normalized difference vegetation index, which may be explained by higher Ta and VPD limiting canopy transpiration during the midgrowing season. Cloudiness can also influence energy partitioning by regulating stomatal behavior in plantation ecosystems. These results contribute to understanding the drivers of energy partitioning in response to cloudiness in plantation ecosystems. |
| WOS关键词 | NET ECOSYSTEM EXCHANGE ; DIFFUSE-RADIATION ; BALANCE CLOSURE ; EDDY-COVARIANCE ; SURFACE CONDUCTANCE ; USE EFFICIENCY ; WATER-VAPOR ; HEAT-FLUX ; EVAPOTRANSPIRATION ; LAND |
| 资助项目 | National Key R & D Program of China[2020YFA0608101] ; National Natural Science Foundation of China[32271875] ; National Natural Science Foundation of China[31872703] ; Hainan Jianfengling Forest Ecosystem National Field Science and Observation Station |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001204851700001 |
| 资助机构 | National Key R & D Program of China ; National Natural Science Foundation of China ; Hainan Jianfengling Forest Ecosystem National Field Science and Observation Station |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/204560]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tong, Xiaojuan |
| 作者单位 | 1.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China 2.Chinese Acad Forestry, Res Inst Forestry & Cultivat State Forestry Adm, Key Lab Tree Breeding, Beijing 100091, Peoples R China 3.Henan Xiaolangdi Earth Crit Zone Natl Res Stn Midd, Jiyuan 454650, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 5.Chinese Acad Forestry, Res Inst Trop Forestry, Hainan Jianfengling Forest Ecosyst Natl Field Sci, Guangzhou 510520, Peoples R China 6.Zhejiang A&F Univ, Sch Environm & Resources Sci Conservat, Hangzhou 311300, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Peirong,Tong, Xiaojuan,Zhang, Jinsong,et al. Energy partitioning is linked to cloudiness in plantation forests in eastern China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2024,349:16. |
| APA | Liu, Peirong.,Tong, Xiaojuan.,Zhang, Jinsong.,Li, Jun.,Zhang, Jingru.,...&Zhou, Yu.(2024).Energy partitioning is linked to cloudiness in plantation forests in eastern China.AGRICULTURAL AND FOREST METEOROLOGY,349,16. |
| MLA | Liu, Peirong,et al."Energy partitioning is linked to cloudiness in plantation forests in eastern China".AGRICULTURAL AND FOREST METEOROLOGY 349(2024):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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