Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain
文献类型：期刊论文
| 作者 | Yang, Xiaoya3; Li, Jun4 ; Yu, Qiang5,6; Ma, Yuchun3; Tong, Xiaojuan1; Feng, Yan2,7; Tong, Yingxiang2
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| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
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| 出版日期 | 2019-09-15 |
| 卷号 | 275页码:233-242 |
| 关键词 | Light use efficiency Gross primary production Diffuse radiation fraction Radiation partitioning model Winter wheat |
| ISSN号 | 0168-1923 |
| DOI | 10.1016/j.agrformet.2019.05.028 |
| 通讯作者 | Yang, Xiaoya(yangxy@nuist.edu.cn) |
| 英文摘要 | The increase of diffuse radiation fraction (k(d)) has been reported to significantly impact light use efficiency (LUE) and carbon uptake in terrestrial ecosystems. The impact of k(d) on LUE should be considered in crop models to accurately evaluate the effect of radiation changes on crop production. However, the magnitude of the k(d) effect is difficult to quantify because of the complicated interacting relationships among all of the meteorological parameters, as well as the changing effects for various ecosystem types and research sites. Eight site-years of flux data and two years of diffuse radiation data from two field ecosystems in the North China Plain were used to (1) compare the performance of five k(d) models, (2) explore the impacts of environmental factors on LUE and gross primary production (GPP) of winter wheat (Triticum aestivium L.), and (3) quantify the relationships between k(d) and both LUE and GPP of winter wheat. Comparison results showed that the k(d) model developed by Boland et al. performed the best of the five models evaluated. This model was chosen to calculate k(d) in this research. Path analysis show that k(d) was the main factor affecting LUE of winter wheat, explaining up to 55% of the variability in LUE. The relationship between k(d) and LUE was significantly linear (slope of about 0.326 g C mol(-1)). GPP initially increased and then decreased with increasing kd. A moderate radiation condition (k(d) = 0.53) was favorable for increasing GPP. The effect of k(d) on LUE should be added in the LUE module of APSIM-Nwheat to improve simulation accuracy. The results of this study highlight the importance of k(d) in correctly modeling LUE for winter wheat with a crop model and provide quantitative relationships between these two parameters. These relationships will be helpful in improving crop model simulation accuracy under changed climate conditions. |
| WOS关键词 | CARBON-DIOXIDE EXCHANGE ; SOLAR-RADIATION ; ATMOSPHERIC PARTICLES ; WATER-USE ; ECOSYSTEM ; FOREST ; PHOTOSYNTHESIS ; MODELS ; CLOUDS ; TEMPERATURE |
| 资助项目 | National Natural Science Foundation of China[41730645] ; National Natural Science Foundation of China[31400416] ; Natural Science Foundation of Jiangsu Province[BK20140988] |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000480376400020 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/68872]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yang, Xiaoya |
| 作者单位 | 1.Beijing Forestry Univ, Coll Forestry, Beijing 100101, Peoples R China 2.Showxian Natl Climate Observ, Shouxian 232200, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Coll Appl Meteorol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, 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.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 6.Univ Technol Sydney, Sch Life Sci, POB 123, Broadway, NSW 2007, Australia 7.Anhui Inst Meteorol, Key Lab Atmospher Sci & Satellite Remote Sensing, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiaoya,Li, Jun,Yu, Qiang,et al. Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain[J]. AGRICULTURAL AND FOREST METEOROLOGY,2019,275:233-242. |
| APA | Yang, Xiaoya.,Li, Jun.,Yu, Qiang.,Ma, Yuchun.,Tong, Xiaojuan.,...&Tong, Yingxiang.(2019).Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain.AGRICULTURAL AND FOREST METEOROLOGY,275,233-242. |
| MLA | Yang, Xiaoya,et al."Impacts of diffuse radiation fraction on light use efficiency and gross primary production of winter wheat in the North China Plain".AGRICULTURAL AND FOREST METEOROLOGY 275(2019):233-242. |
入库方式： OAI收割
来源：地理科学与资源研究所
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