Change of precipitation characteristics in the water-wind erosion crisscross region on the Loess Plateau, China, from 1958 to 2015

Zhao, Xingkai; Li, Zeng-Yao; Zhu, Qing

doi:10.1038/s41598-017-08600-y

Cited by 15 publications

(7 citation statements)

References 44 publications

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“…The FDR‐adjusted Mann–Kendall test is applied to detect the significance of the trend of the four presummer precipitation indices during 1979–2018 at each grid point over the LP. In general, the extreme precipitation increases in the northwest and southeast and decreases in the central‐east of the LP (Figure 4), which is consistent with previous studies (Zhao et al, 2017; Zhao, Zhai, et al, 2017). However, significant differences are found among the six UAs.…”

Section: Resultssupporting

confidence: 91%

Contribution of climate change and urbanization to the variation of extreme precipitation in the urban agglomerations over the Loess Plateau

Wei

Wang

Zheng

et al. 2022

Hydrological Processes

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With global warming and rapid urbanization, urban agglomerations (UAs) over the Loess Plateau (LP) are suffering from various urban disasters. Urbanization has aggravated the decreasing trends of extreme precipitation in Taiyuan and Xi'an UAs and enhanced the increasing trends of extreme precipitation in Luoyang, Hohhot and Xining UAs during 1979–2018. Meanwhile, the number of light rain days decreases in almost all the cities, indicating the sensitivity of light rain days to urbanization. Climate change is a primary contributor to the change of urban precipitation during 1979–2000 in this region. But, the contribution of urbanization has been increasing gradually since 2000, and it further amplifies the influence of climate change. In terms of physical mechanisms, rapidly increasing surface temperatures and aerosol particles are closely related to urban precipitation. Our findings provide a systematic understanding of the urbanization effects on extreme precipitation over the LP, playing an important role in the mitigation of future urban disasters.

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Section: Resultssupporting

confidence: 91%

Contribution of climate change and urbanization to the variation of extreme precipitation in the urban agglomerations over the Loess Plateau

Wei

Wang

Zheng

et al. 2022

Hydrological Processes

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“…According to the variation of SPEI in the QTP and its surrounding areas over the last half century, R/S analysis was performed to evaluate the long-term correlation of time series 42 . Figure 6 showed the results of R/S analysis in different seasons.…”

Section: Resultsmentioning

confidence: 99%

Drought characteristics and its elevation dependence in the Qinghai–Tibet plateau during the last half-century

Feng

Yao

et al. 2020

Sci Rep

153

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Associated with global warming, drought has destructive influences on agriculture and ecosystems, especially in the fragile Qinghai-Tibet Plateau (QTP). This study investigated spatial-temporal patterns of meteorological drought in the QTP and its surrounding areas and made an attempt to explore the relationship between drought conditions and elevation. Robust monitoring data from 274 meteorological stations during 1970-2017 were analyzed using the Sen's slope method, Mann-Kendall trend test and rescaled range analysis. Results revealed that under the wetting trend in the QTP, Standardized Precipitation Evapotranspiration Index (SPEI) increased of maximum 0.012/year in spring. Moreover, severe drought frequency in winter and future drought risk in summer also showed an increasing trend. Wetter trends were positively correlated with elevation, with a key point being 4,000 m where the change trend above 4,000 m was about 6.3 times of that below 4,000 m in study area. The difference of drought severities between SPEI in the QTP and its surrounding areas has increased from − 0.19 in 1970 to 0.38 in 2017 and kept growing in future. Drought is one of the most widespread and costly natural disasters 1 , which can endanger the production of agriculture and animal husbandry, worsen the ecological environment, and even expose human to the risk of disease 2,3. Previous studies have suggested that under global warming, the percentage of dry areas in the world has increased by approximately 1.74% per decade during 1950-2008 4,5. With an average elevation above 4,000 m and an area of 200,000 square kilometers, the Qinghai-Tibet Plateau (QTP) is the source of major rivers in Asia 6-8. It is extremely vulnerable to global change, and easily suffers from drought. The drought herein will have profound impacts on the neighboring regions. Therefore, a comprehensive understanding of drought characteristics in the QTP is of great importance. Many studies on spatiotemporal characteristics of drought in the QTP and its surrounding areas have been conducted, mainly concluded that the QTP has become warmer and wetter in the past decades, especially in the vast northwestern QTP 5-7,9-13. Additionally, Gao et al. 8 analyzed the aridity changes using P/PET ratio in recent 30 years based on 83 stations, and found that the eastern QTP was becoming drier and the aridity change pattern was significantly correlated with precipitation, sunshine duration and diurnal temperature range. Liang et al. 14 investigated 74 stations in the QTP during 1980-2014 and found that the drought pattern exhibited obvious inter-decadal variation and severe drought mainly occurred before the 1990s. Yang et al. 15 forecasted an increasing drought trend in southwest China (including Yunnan Province) but an increasing wetting trend for the QTP based on simulation of Global Climate Models (GCM) taken from the Coupled Model Intercomparison Project Phase 5 (CMIP5) framework. Other studies have addressed the seasonal drought evolution in the QTP. Some concluded that the dro...

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“…The detailed information on how to use Mann‐Kendall abrupt change test to detect trend change can be found in Zhao et al . (2017). From the definition of uf k , the statistic uf k could be used to represent the standardized value of S k .…”

Section: Methodsmentioning

confidence: 99%

Temporal variability of seasonal warming rates in China

Hou

Yan

et al. 2020

Intl Journal of Climatology

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Calculation of the warming rate is the key to addressing the current debate about the existence of a recent hiatus in global warming. Previous studies have calculated the warming rate based on either a long period or selected periods. We calculated the warming rate in the seasonal temperatures obtained from 2,479 weather stations across China. We identified all the trend change years and divided the period 1958-2017 into different sub-periods based on these years. Our results showed that the warming rate is higher than 0.5 C per decade in numerous stations. The amount of seasonal warming over the past 60 years was highest in winter, followed by spring, then autumn and was lowest in summer. Northern China has shown stronger warming than southern China over the past 60 years. Our results quantified the short-period rates and identified natural change points which allows a sound comparison across regions. As rapid warming has a strong influence on natural systems and human health, extra care should be taken in regions with a high rate of warming.

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Change of precipitation characteristics in the water-wind erosion crisscross region on the Loess Plateau, China, from 1958 to 2015

Cited by 15 publications

References 44 publications

Contribution of climate change and urbanization to the variation of extreme precipitation in the urban agglomerations over the Loess Plateau

Contribution of climate change and urbanization to the variation of extreme precipitation in the urban agglomerations over the Loess Plateau

Drought characteristics and its elevation dependence in the Qinghai–Tibet plateau during the last half-century

Temporal variability of seasonal warming rates in China

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