Response of evapotranspiration and water availability to the changing climate in Northern Eurasia

Liu, Yaling; Zhuang, Qianlai; Pan, Zhihua; Miralles, Diego G.; Tchebakova, N. M.; Kicklighter, David W.; Chen, Jiquan; Sirin, Andrey; He, Yujie; Zhou, Guangsheng; Melillo, Jerry M.

doi:10.1007/s10584-014-1234-9

Cited by 39 publications

(41 citation statements)

References 41 publications

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“…The same declining trends were also found in other regions throughout the world, such as New Zealand (from the 1970s to the early 2000s), India , and parts of China [12][13][14]. However, an increasing trend in ET 0 was identified in other regions from the 1960s to early 2000s, such as Iran , Northern Eurasia , and parts of Romania (1961Romania ( -2007 [3,15,16].…”

Section: Introductionsupporting

confidence: 65%

Changes of Reference Evapotranspiration and Its Relationship to Dry/Wet Conditions Based on the Aridity Index in the Songnen Grassland, Northeast China

Zhang

Sun

et al. 2017

Water

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Abstract:Reference evapotranspiration (ET 0 ) plays an important role in regional dry/wet conditions. Based on the Food and Agriculture Organization of the United (FAO) Penman-Monteith method and daily climate variables, ET 0 was calculated for 21 stations in and around the Songnen Grassland, northeast China, during 1960China, during -2014. The temporal and spatial variations of ET 0 and precipitation (P) were analyzed in the annual, seasonal, and growing season (from April to October) time series using the Mann-Kendall test, Sen's slope estimator, and linear regression coupled with a break trend analysis. A sensitivity analysis was used to detect the key climate parameter contributing to ET 0 change. By linear regression analysis on the relationship between ET 0 , P, and the aridity index (AI), the role of ET 0 in determining regional wet/dry conditions was analyzed. Results show a higher ET 0 in the southwest and a lower ET 0 in the northeast, but P was opposite to that of ET 0 . Evident decreasing trends of ET 0 in the annual, seasonal, and growing season time series were detected in almost the entire region by the trend analysis methods. For the entire region, the decreasing trend of ET 0 can be linked to the relative humidity and maximum air temperature. The positive contribution of increasing temperature to ET 0 was offset by the effect of the significantly decreasing relative humidity, wind speed, and sunshine duration at the 0.05 level during 1960-2014. In addition, the value of ET 0 was higher in drought years and lower in wet years.

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Section: Introductionsupporting

confidence: 65%

Changes of Reference Evapotranspiration and Its Relationship to Dry/Wet Conditions Based on the Aridity Index in the Songnen Grassland, Northeast China

Zhang

Sun

et al. 2017

Water

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“…Shikano et al 23 estimated total evaporation for Chany, a shallow endorheic lake in Southwest Siberia close to BNNP area, to amount to 714 mm (1994)(1995)(1996)(1997)(1998)(1999). Two recent studies focused on North Eurasia's ET 36,37 ; based on ecosystem and remote sensing modeling efforts they found open-water evaporation estimates (using the Penman model) about 800 mm year …”

Section: 9mentioning

confidence: 99%

The changing water cycle: Burabay National Nature Park, Northern Kazakhstan

et al. 2017

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Water resources in Central Asia are scarce, so complicated issues arise from this. Kazakhstan is a Central Asian landlocked country, which has mostly closed drainage basins, characterized by endorheic lakes that do not drain to the oceans. These endorheic lakes are very sensitive to climate change and anthropogenic influences. Very few studies have been conducted on the hydrological cycle of the small endorheic lakes. This work reviews the endorheic lakes within Burabay National Nature Park (BNNP), Northern Kazakhstan. BNNP is a small ecozone consisting of terminal lakes watersheds covered by mixed forests and grasslands. These endorheic lakes have been drying out during the last one hundred years or so with the water level decrease accelerated in the past few decades. According to historical observations , on the one hand precipitation amounts did not significantly change, while on the other hand, air temperature steadily increased. The lake level decrease is most probably caused by a water budget deficit, with evaporation exceeding the precipitation inputs in the long term. The direct anthropogenic impact (water abstraction) plays a minor role in the deterioration of water levels, with most significant impacts through localized land-use changes such as road and building construction in the catchments. The future of the park's sensitive ecosystems in a changing climate is uncertain; therefore, BNNP requires modern ecohydrological monitoring methods and analysis tools to improve our understanding of its hydrological cycle variability, and to enable us to develop adequate adaptation and mitigation measures.

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“…Shadmani et al (2012) and Kousari et al (2013) reported that a majority of weather stations in Iran present a negative trend but others show an increase in ET o trends. A study for Northern Eurasia detected significant decreasing trends as more important than the positive ones (Liu et al 2014). For Romania (Croitoru et al 2013) positive trends were detected for most of locations.…”

mentioning

confidence: 91%

Daily Reference Evapotranspiration for Hyper-Arid to Moist Sub-Humid Climates in Inner Mongolia, China: II. Trends of ETo and Weather Variables and Related Spatial Patterns

Ren

Martins

et al. 2016

Water Resour Manage

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This study focuses on assessing trends of reference evapotranspiration (ET o ) considering aridity. Weather data sets of 54-62 years of Inner Mongolia, a Chinese Province where climate varies from hyper-arid in the West to wet sub-humid in the East, were used. Trends were analyzed for ET o computed with the FAO Penman-Monteith method (PM-ET o ) using full data sets of maximum and minimum temperature (T max and T min ), sunshine duration (SD) used to compute net radiation, relative humidity (RH) and wind speed (WS). Trends were also assessed for ET o computed with the Hargreaves-Samani temperature eq. (ET o HS ) and the Penman-Monteith equation with temperature estimates of solar radiation and actual vapour pressure (ET o PMT ). In addition, trends relative to T max , T min , SD, RH and WS were assessed. Trends for PM-ET o show to vary with aridity, with decreasing trends in the areas marked by aridity in the West and increased trends in less arid and sub-humid areas in the East. The detected trends are well explained by the trends in weather variables which consist of large increasing trends of T max and T min and of decreasing trends for SD, RH and WS. Therefore, negative trends of ET o occur where impacts of increases in temperature and decreases in RH are smaller than impacts of declining SD and WS; otherwise, when warming influences are larger it results a positive trend for ET o . Trends were coherent when considering seasonality influences. Contrarily, results for the temperature methods, ET o PMT and ET o HS, always Water Resour Manage identified increased trends for ET o due to warming effects. These results show that it is inappropriate to assess ET o trends when using simplified temperature methods.

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Response of evapotranspiration and water availability to the changing climate in Northern Eurasia

Cited by 39 publications

References 41 publications

Changes of Reference Evapotranspiration and Its Relationship to Dry/Wet Conditions Based on the Aridity Index in the Songnen Grassland, Northeast China

Changes of Reference Evapotranspiration and Its Relationship to Dry/Wet Conditions Based on the Aridity Index in the Songnen Grassland, Northeast China

The changing water cycle: Burabay National Nature Park, Northern Kazakhstan

Daily Reference Evapotranspiration for Hyper-Arid to Moist Sub-Humid Climates in Inner Mongolia, China: II. Trends of ETo and Weather Variables and Related Spatial Patterns

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