Species-and Community-Scale Simulation of the Phenology of a Temperate Forest in Changbai Mountain Based on Digital Camera Images
文献类型：期刊论文
| 作者 | Zhou Lei1; He Honglin1 ; Sun Xiaomin1; Zhang Li1; Yu Guirui1; Ren Xiaoli1; Wang Jiayin1; Zhang Junhui2
|
| 刊名 | Journal of Resources and Ecology
 |
| 出版日期 | 2013 |
| 卷号 | 4期号:4页码:317 |
| 关键词 | 物候 数字相机 温带森林 物候模型 GSI生长模型 |
| ISSN号 | 1674-764X |
| 英文摘要 | Vegetation phenology is an important parameter in models of global vegetation and land surfaces, as the accuracy of these simulations depends strongly on the description of the canopy status. Temperate forests represent one of the major types of vegetation at mid-high latitudes in the Northern Hemisphere and act as a globally important carbon sink. Thus, a better understanding of the phenological variables of temperate forests will improve the accuracy of vegetation models and estimates of regional carbon fluxes. In this work, we explored the possibility of using digital camera images to monitor phenology at species and community scales of a temperate forest in northeastern China, and used the greenness index derived from these digital images to optimize phenological model parameters. The results show that at the species scale, the onset dates of phenological phases (Korean pine, Mongolian oak) derived from the images are close to those from field observations (error < 3d). At the community scale the time series data accurately reflected the observed canopy status (R~2=0.9) simulated using the phenological model, especially in autumn. The phenological model was derived from simple meteorological data and environmental factors optimized using the greenness index. These simulations provide a powerful means of analyzing environmental factors that control the phenology of temperate forests. The results indicate that digital images can be used to obtain accurate phenological data and provide reference data to validate remote-sensing phenological data. In addition, we propose a new method to accurately track phenological phases in land-surface models and reduce uncertainty in spatial carbon flux simulations. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/155151]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.Institute of Geographic Sciences and Natural Resources Research, CAS 2.Institute of Applied Ecology, CAS |
| 推荐引用方式 GB/T 7714 | Zhou Lei,He Honglin,Sun Xiaomin,et al. Species-and Community-Scale Simulation of the Phenology of a Temperate Forest in Changbai Mountain Based on Digital Camera Images[J]. Journal of Resources and Ecology,2013,4(4):317. |
| APA | Zhou Lei.,He Honglin.,Sun Xiaomin.,Zhang Li.,Yu Guirui.,...&Zhang Junhui.(2013).Species-and Community-Scale Simulation of the Phenology of a Temperate Forest in Changbai Mountain Based on Digital Camera Images.Journal of Resources and Ecology,4(4),317. |
| MLA | Zhou Lei,et al."Species-and Community-Scale Simulation of the Phenology of a Temperate Forest in Changbai Mountain Based on Digital Camera Images".Journal of Resources and Ecology 4.4(2013):317. |
入库方式： OAI收割
来源：地理科学与资源研究所
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