The temporal trends of reference evapotranspiration and its sensitivity to key meteorological variables in the Yellow River Basin, China

Liu, Qiang; Zhang, Yang; Cui, Baoshan; Sun, Tao

doi:10.1002/hyp.7649

Cited by 103 publications

(102 citation statements)

References 58 publications

(74 reference statements)

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“…The decreasing WS rate agreed well with result of Guo et al [64]. However, the magnitude of decreasing rate of WS in the HRB was much greater than those in the other river basins [1,21] and different areas in China [65,66], and also in East Asia [67]. The recent declining WS trend is mostly a result of large-scale atmospheric circulation patterns on account of climate warming [68], weakened Siberian High and East Asia Monsoon [69], descending temperature and pressure gradient [69][70][71], and intensified Asian zonal circulation patterns [72].…”

Section: Temporal Change Trends Of Et Ref and Climate Factors In Hrbsupporting

confidence: 88%

Quantifying Climatic Impact on Reference Evapotranspiration Trends in the Huai River Basin of Eastern China

Chu

Shen

et al. 2018

Water

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showed in spring. These phenomena could be reasonably explained by a significantly increasing mean temperature (TA), a significantly decreasing wind speed (WS), solar radiation (SR), and a slightly decreasing relative humidity (RH). The most sensitive factor to ET ref was RH in most sub-regions and most time scales, except in the growing season and summer. Based on the developed differential equation method, the dominant factor of the decreasing ET ref was WS in the annual time scale, spring, autumn, and winter in most sub-regions, except the lower HRB, which then shifted to SR in the growing season and summer. However, in the lower HRB, the significantly decreasing RH was the most dominant factor, especially in the annual time scale, growing season, and spring, which might be responsible for the slightly increasing ET ref there.

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Section: Temporal Change Trends Of Et Ref and Climate Factors In Hrbsupporting

confidence: 88%

Quantifying Climatic Impact on Reference Evapotranspiration Trends in the Huai River Basin of Eastern China

Chu

Shen

et al. 2018

Water

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“…This widespread decrease in ET0 was similar to results from other areas of China, such as in northwest of China [8], the Tibetan Plateau [46] and some basins [47,48]. For the majority of seasonal ET0 results, ET0 decreased the fastest in the agricultural group whilst the desert group recorded the fastest ET0 increase both in summer.…”

Section: Discussionsupporting

confidence: 84%

Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China

et al. 2018

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Abstract:The response of potential evapotranspiration (ET0) to widespread irrigation is important to fully understand future regional climate changes and to infer adaptive management of agricultural water resources. The quantitative impact of irrigation on ET0 from 1960 to 2013 was evaluated using historical time series data of daily meteorological observations in the hyper-arid region of northwest China. The decreasing trends in ET0 were accelerated for meteorological stations in regions with oasis agriculture, especially in the summer and during the growing season. Irrigation led to a cooling effect on temperature, increased relative humidity and precipitation. All of these changes contributed to a larger decrease of ET0 trend. The findings of this study advance our insight into the effects of irrigation on dynamics in ET0 and meteorological factors. Further investigations to understand how ET0 responds to climate change and agricultural irrigation could provide guidance for determining effective measures of water resources for adapting to global change.

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“…Until now, the major interpretation of this phenomenon was the decrease in wind speed in regions, such as the Northern Hemisphere (Vautard et al 2010), Canada (Wan et al 2010), German (Bormann 2011), Australia (Roderick et al 2007), the Hai River (Tang et al 2011),the Yellow River (Liu et al 2010b), the Tibetan Plateau (Liu et al 2011b), arid/semi-arid/semi-humid regions of China ) and the whole of China (Liu et al 2010a(Liu et al , 2011a. Solar radiation (Wang et al 2007;Xu et al 2006;Zhang et al 2013), vapor pressure and temperature (Golubev et al 2001;Tabari et al 2011) have also been used to explain the decrease in ET 0 .…”

Section: Introductionmentioning

confidence: 99%

The spatiotemporal variation of reference evapotranspiration and the contribution of its climatic factors in the Loess Plateau, China

Liang

Bai

et al. 2016

Environ Earth Sci

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Reference evapotranspiration (ET 0 ) is an important parameter of agricultural activity and hydrometeorological studies. In this study, we used the Food and Agriculture Organization Penman-Monteith equation to evaluate ET 0 , and to investigate the change point of ET 0 in the Loess Plateau region from 1960 to 2013. The results showed that a change point was detected at approximately the year 1990 for annual ET 0 series from 108 meteorological stations using Cramer's statistical test. The annual ET 0 decreased significantly (p \ 0.05) by -1.22 mm year -1 from 1960 to 1990, especially during the summer months, which contributed the most to the total annual reduction, while it increased significantly (p \ 0.001) by 1.15 mm year -1 from 1991 to 2013, with the spring months contributing the most. The ET 0 and its trend in the five integrated management divisions of the Loess Plateau have significant spatial heterogeneity. The highest and lowest ET 0 were found in the third and fifth divisions from 1960 to 2013. The ET 0 decreased significantly in the first division and increased in the fourth divisions (1960-1990 and 1991-2013, respectively). Using differential equations to quantitatively evaluate the contribution of various factors, the wind speed was mostly responsible for the variability in the ET 0 trend from 1960 to 1990, followed by solar radiation and vapor pressure. The positive effect of air temperature on ET 0 trend was offset by the other three factors, and the combined effects of the four climatic variables led to the decrease in the ET 0 trend. However, the rapidly increasing air temperature became the predominant factor in the change in the ET 0 trend after 1990. A spatiotemporal variation of predominant contribution to the ET 0 trend was identified. The temperature dominant region changed from the third to the first division for 1960-1990 and 1991-2013. Radiation did not change. Vapor pressure changed from the first to the fourth and the wind speed changed from the forth to the third. This study could contribute to a better understanding of the response of the spatial and temporal variation of ET 0 to increased climate change. Additionally, this research also provides scientific support to regional planning and management.

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The temporal trends of reference evapotranspiration and its sensitivity to key meteorological variables in the Yellow River Basin, China

Abstract: Abstract:The temporal trends of reference evapotranspiration (ET ref

Cited by 103 publications

References 58 publications

Quantifying Climatic Impact on Reference Evapotranspiration Trends in the Huai River Basin of Eastern China

Quantifying Climatic Impact on Reference Evapotranspiration Trends in the Huai River Basin of Eastern China

Oasis Irrigation-Induced Hydro-Climatic Effects: A Case Study in the Hyper-Arid Region of Northwest China

The spatiotemporal variation of reference evapotranspiration and the contribution of its climatic factors in the Loess Plateau, China

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