Effect of diffuse fraction on gross primary productivity and light use efficiency in a warm-temperate mixed plantation
文献类型：期刊论文
| 作者 | Liu, Peirong3; Tong, Xiaojuan3; Zhang, Jinsong2; Meng, Ping2; Li, Jun1; Zhang, Jingru3; Zhou, Yu2 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2022-10-11 |
| 卷号 | 13页码:17 |
| ISSN号 | 1664-462X |
| 关键词 | gross primary productivity light use efficiency diffuse fraction environmental factors mixed plantation |
| DOI | 10.3389/fpls.2022.966125 |
| 通讯作者 | Tong, Xiaojuan(tongxj@bjfu.edu.cn) ; Zhang, Jinsong(zhangjs@caf.ac.cn) |
| 英文摘要 | Diffuse radiation (I-f) is one of important variables determining photosynthetic rate and carbon uptake of forest ecosystems. However, the responses of gross primary productivity (GPP) and light use efficiency (LUE) to diffuse fraction (DF) are still poorly understood. We used a 6-year dataset of carbon flux at a warm-temperate mixed plantation site in North China to explore the impacts of DF on GPP and LUE. During 2011-2017, ecosystem apparent quantum yield (alpha) and photosynthesis at photosynthetically active radiation (PAR) of 1800 mu mol m(-2) s(-1) (P-1800) on cloudy days were 63% and 17% higher than on clear days, respectively. Under lower vapor pressure deficit (VPD) and air temperature (T-a) conditions, canopy photosynthesis was significantly higher on cloudy skies than on clear skies. On half-hourly scale, increased DF enhanced alpha and P-1800. Daily GPP peaked at a median DF (=0.5), while daily LUE significantly increased with DF (p<0.01). Both GPP and LUE were mainly controlled directly by DF and PAR. DF had an indirect effect on LUE and GPP mainly through PAR. At high DF levels (>0.5), the increase in LUE did not make GPP enhancement. The direct effect of DF on GPP and LUE under lower T-a and VPD was more sensitive than under higher T-a and VPD. When DF was incorporated into the Michaelis-Menten model, it performed well in the GPP estimation, and the determination coefficient increased by 32.61% and the root mean square error decreased by 25.74%. These findings highlight the importance of incorporating DF into carbon sequestration estimation in North China. |
| WOS关键词 | CARBON-DIOXIDE EXCHANGE ; WATER-USE EFFICIENCY ; NET ECOSYSTEM ; ATMOSPHERIC PARTICLES ; GLOBAL RADIATION ; SOLAR-RADIATION ; SKY CONDITIONS ; PHOTOSYNTHESIS ; CLOUDINESS ; FOREST |
| 资助项目 | National Natural Science Foundation of China[31872703] ; National Natural Science Foundation of China[31570617] ; National Key R & D Program of China~[2020YFA0608101] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000875763800001 |
| 资助机构 | National Natural Science Foundation of China ; National Key R & D Program of China~ |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186191]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tong, Xiaojuan; Zhang, Jinsong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 2.Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat State Forestry Ad, Beijing, Peoples R China 3.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Peirong,Tong, Xiaojuan,Zhang, Jinsong,et al. Effect of diffuse fraction on gross primary productivity and light use efficiency in a warm-temperate mixed plantation[J]. FRONTIERS IN PLANT SCIENCE,2022,13:17. |
| APA | Liu, Peirong.,Tong, Xiaojuan.,Zhang, Jinsong.,Meng, Ping.,Li, Jun.,...&Zhou, Yu.(2022).Effect of diffuse fraction on gross primary productivity and light use efficiency in a warm-temperate mixed plantation.FRONTIERS IN PLANT SCIENCE,13,17. |
| MLA | Liu, Peirong,et al."Effect of diffuse fraction on gross primary productivity and light use efficiency in a warm-temperate mixed plantation".FRONTIERS IN PLANT SCIENCE 13(2022):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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