Spatiotemporal Characteristics and Regional Variations of Active Fires in China since 2001
文献类型：期刊论文
| 作者 | Lian, Chenqin; Xiao, Chiwei; Feng, Zhiming |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2023 |
| 卷号 | 15期号:1 |
| 关键词 | active fires MODIS Collection 6 spatiotemporal characteristics regional variations straw burning China |
| DOI | 10.3390/rs15010054 |
| 文献子类 | J |
| 英文摘要 | Currently, fires (e.g., biomass burning and/or straw burning) are still prevailing and serious globally. However, the issue of the characteristics, types, and drives of fire occurrence is always a challenge and varies distinctively worldwide. Using Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 (C6) active fire products during 2001-2020, here, we analyzed the occurrence frequencies and spatiotemporal characteristics of active fires at the provincial and regional to national scales and at the monthly and annual scales in China. The accumulated occurrence frequencies of MODIS C6 active fires in China were up to 184.91 x 10(4) in the past two decades, and the average annual level was 9.25 x 10(4), especially in 2014 (15.20 x 10(4)). The overall trend of active fires was rising and then falling, but with significant spatial and temporal differences in the last 20-years. Temporally, nearly 61% of active fires occurred in spring (36%) and autumn (25%), particularly in August (16%), April (14%), and October (13%). Spatially, about 90% of active fires occurred in the east of the Hu Huanyong Line, particularly in Northeast China (25%), South China (23%), and East China (20%). In China, the most active fires were concentrated in the Northeast Plain, the North China Plain, the southeast hills, and the Yunnan-Kweichow Plateau. In terms of temporal differences across regions, active fires in Northeast China, North China, and Northwest China were concentrated in spring and autumn, especially in March, April, and October; in East China, they were concentrated in summer, especially in June; and in South China and Southwest China, they were concentrated in winter and spring, especially from December to April of the following year. Our study provides a full analysis of spatio-temporal characteristics and changes of active fires in China, and it can also assist in supplying a beneficial reference for higher monitoring and controlling of fires such as straw burning. |
| WOS关键词 | DETECTION ALGORITHM ; MODIS SATELLITE ; EMISSIONS ; POLLUTION ; TIANJIN ; IMPACT ; PM2.5 |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS记录号 | WOS:000908526000001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188653]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 作者单位 | 1.Ministry of Natural Resources of the People's Republic of China 2.University of Chinese Academy of Sciences, CAS 3.Institute of Geographic Sciences & Natural Resources Research, CAS 4.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Lian, Chenqin,Xiao, Chiwei,Feng, Zhiming. Spatiotemporal Characteristics and Regional Variations of Active Fires in China since 2001[J]. REMOTE SENSING,2023,15(1). |
| APA | Lian, Chenqin,Xiao, Chiwei,&Feng, Zhiming.(2023).Spatiotemporal Characteristics and Regional Variations of Active Fires in China since 2001.REMOTE SENSING,15(1). |
| MLA | Lian, Chenqin,et al."Spatiotemporal Characteristics and Regional Variations of Active Fires in China since 2001".REMOTE SENSING 15.1(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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