| 刊名 | Meteorological and Environmental Research |
| 作者 | Zhanming LIU1,2*, Rong FU2 |
| 作者单位 | 1.School of Architecture and Planning, Foshan University, Foshan 528000, China; 2.School of Environment and Chemical Engineering, Foshan University, Foshan 528000, China |
| DOI | 10.19547/j.issn2152-3940.2025.06.006 |
| 年份 | 2025 |
| 刊期 | 6 |
| 页码 | 21~25 |
| 关键词 | NDVI; Sunshine hours; Correlation analysis; Beijiang River basin |
| 摘要 | Based on MODIS NDVI data and sunshine hours data from 2000 to 2019, using mathematical statistical methods, the monthly variations in vegetation and sunshine hours in the Beijiang River basin were primarily analyzed, as well as the response relationship between the two. The results showed that: ① the annual average NDVI of the basin was 0.58. In terms of intra-annual distribution, the lowest value was recorded in February (0.41), and it gradually increased from February to September, reaching the highest value in September (0.72). Then, it gradually decreased from September to next February. The overall NDVI of the basin showed a fluctuating upward trend. From an intra-annual perspective, it increased rapidly in the second half of the year (July to December). Areas with low vegetation coverage were mainly distributed in the southern part of the basin and the valley plains in the central and northern parts. ② The average annual sunshine hours was 1 595.80 h, but there were significant variations between years, and the overall trend of annual sunshine hours was a decline. NDVI and sunshine hours were primarily positively correlated, with a stronger correlation from January to June. |
