Assessment of and Adaptation Measures to the Impacts of Climate Change on Water Resources in China

Lv, Aifeng; Jia, Shaofeng

doi:10.1007/978-981-16-5493-0_13

Cited by 1 publication

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“…Lv and Jia pointed out that between 1961 and 2019, precipitation in China showed a non-significant upward trend, with only the Continental Basin showing a significant upward trend [45]. The precipitation-runoff relationship partly reflects the correlation coefficient between meteorological and hydrological drought [46].…”

Section: Discussionmentioning

confidence: 99%

“…Between 2021 and 2100, the overall water resources in China will show a slight increase due to climate change [45]. They also showed that the Huai River Basin, Hai River Basin, Yangtze River Basin, Pearl River Basin, and the Southeast River Basins are predicted to show different rates of water resource increases, while the water resources of the Songhua and Liaohe River Basin, the Continental Basin, and the Yellow River Basin are predicted to gradually decrease under different climate change scenarios [45]. Hydrological drought is defined by inadequate surface and subsurface water resources [7].…”

Section: Discussionmentioning

confidence: 99%

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Spatiotemporal Changes and Hazard Assessment of Hydrological Drought in China Using Big Data

Tao,

Meng,

Huang

2023

Water

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The intensification of the regional water cycle resulting from climate change, coupled with the influence of human activities, has brought about alterations in the frequency, scale, and intensity of droughts. In this study, based on hydrological big data and the standardized runoff drought index (SRI), the multi-scale spatiotemporal evolution of hydrological drought in China from 1948 to 2014 was analyzed using the run-length theory and gravity center model. Meanwhile, the hydrological drought hazard index was constructed to analyze the distribution of the hazard levels of drought in China. The results showed that, during 1948~2014, there was an opposite spatial distribution between the average intensity and the average coverage–duration–frequency of drought in the Yellow River Basin, Haihe River Basin and southeastern river basins. The drought situation in most river basins in China has shown an aggravating trend, among which the southeastern river basins, Haihe River Basin, Songliao River Basin and Pearl River Basin have generally shown an aggravating trend. The drought situation in China was severe in the 1950s and 1960s, gradually reduced in the 1970s, 1980s, and 1990s, and the drought situation was the mildest in the 1990s. After entering the 21st century, the drought situation began to worsen sharply. Meanwhile, from 1948 to 2014, the hazard level of drought generally presented a pattern of high in the west and north, and low in the east and south. The hazard levels of drought in the northwest and northeast were generally higher, and those in the southwest and southeast regions were generally lower. In general, the hazard levels of drought were relatively high in most areas of China.

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Section: Discussionmentioning

confidence: 99%