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- Title
基于核温度植被干旱指数的内蒙古 植被生长季生态干旱监测.
- Authors
赵家培; 郭恩亮; 王永芳; 康 尧; 顾锡羚
- Abstract
Ecological drought monitoring is important for regional status assessment and protection of water resources. In this study, we constructed a new ecological drought index, the kernel temperature vegetation drought index (kTVDI), by using the kernel normalized vegetation index (kNDVI) to improve the temperature vegetation drought index (TVDI) in Inner Mongolia. We further analyzed the spatial and temporal distribution of ecological drought in Inner Mongolia during 2000-2022 and the future trend of ecological drought by using segmented linear regression model, Theil-Sen median, Mann-Kendall test, and Hurst index. The results showed that kTVDI performed better in monitoring ecological drought than TVDI. From 2000 to 2022, kTVDI showed a decreasing trend in the growing season in Inner Mongolia, but the change was not significant, and a sudden change occurred in 2016, and the wetting trend after the sudden change was more obvious. During the study period, ecological drought in 23.6% of the areas of Inner Mongolia showed an aggravating trend, and ecological drought was alleviated in 46.5% of the area. In the future, ecological drought would be exacerbated in the eastern part but alleviated in the central and western parts of Inner Mongolia.
- Subjects
INNER Mongolia (China); DROUGHTS; TEMPERATURE
- Publication
Yingyong Shengtai Xuebao, 2023, Vol 34, Issue 11, p2929
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001--9332.202311.024