Spatial-Temporal Patterns and Controls of Evapotranspiration across the Tibetan Plateau (2000–2012)

Evapotranspiration (ET) is a key factor to further our understanding of climate change processes, especially on the Tibetan Plateau, which is sensitive to global change. Herein, the spatial patterns of ET are examined, and the effects of environmental factors on ET at different scales are explored from the years 2000 to 2012. The results indicated that a steady trend in ET was detected over the past decade. Meanwhile, the spatial distribution shows an increase of ET from the northwest to the southeast, and the rate of change in ET is lower in the middle part of the Tibetan Plateau. Besides, the positive effect of radiation on ET existed mainly in the southwest. Based on the environment gradient transects, the ET had positive correlations with temperature (, ), precipitation (R > 0.89, p 0.75, p < 0.0001), but a negative correlation between ET and radiation (R = 0.76, p < 0.0001) was observed. We also found that the relationships between environmental factors and ET differed in the different grassland ecosystems, which indicated that vegetation type is one factor that can affect ET. Generally, the results indicate that ET can serve as a valuable ecological indicator.

[1]  Shaohong Wu,et al.  Spatio-temporal dynamics of evapotranspiration on the Tibetan Plateau from 2000 to 2010 , 2017 .

[2]  庞宇,et al.  TRMM-Data-Based Spatial and Seasonal Patterns of Precipitation in the Qinghai-Tibet Plateau , 2016 .

[3]  P. Luo,et al.  Ecosystem Evapotranspiration as a Response to Climate and Vegetation Coverage Changes in Northwest Yunnan, China , 2015, PloS one.

[4]  Nan Shan,et al.  Spatiotemporal trends of reference evapotranspiration and its driving factors in the Beijing–Tianjin Sand Source Control Project Region, China , 2015 .

[5]  Jian Sun,et al.  The response of vegetation dynamics of the different alpine grassland types to temperature and precipitation on the Tibetan Plateau , 2015, Environmental Monitoring and Assessment.

[6]  Jinzhong Min,et al.  Comparison of multiple datasets with gridded precipitation observations over the Tibetan Plateau , 2015, Climate Dynamics.

[7]  D. Yan,et al.  Assessing the impact of climatic factors on potential evapotranspiration in droughts in North China , 2014 .

[8]  Valeriy Kovalskyy,et al.  Evapotranspiration Variability and Its Association with Vegetation Dynamics in the Nile Basin, 2002-2011 , 2014, Remote. Sens..

[9]  Zhenchun Hao,et al.  Tibetan Plateau precipitation as depicted by gauge observations, reanalyses and satellite retrievals , 2014 .

[10]  Zhuguo Ma,et al.  Estimation of evapotranspiration over the terrestrial ecosystems in China , 2014 .

[11]  George M. Hornberger,et al.  Elements of physical hydrology , 2014 .

[12]  Xuan Zhu,et al.  Reference evapotranspiration trends and their sensitivity to climatic change on the Tibetan Plateau (1970–2009) , 2013 .

[13]  Xiaomao Lin,et al.  Negative effects of climate warming on maize yield are reversed by the changing of sowing date and cultivar selection in Northeast China , 2013, Global change biology.

[14]  Andrei P. Sokolov,et al.  Response of evapotranspiration and water availability to changing climate and land cover on the Mongolian Plateau during the 21st century , 2013 .

[15]  Spatio-temporal variation of actual evapotranspiration in the Haihe River Basin of the past 50 years , 2013 .

[16]  Evapotranspiration and Its Energy Exchange in Alpine Meadow Ecosystem on the Qinghai-Tibetan Plateau , 2013 .

[17]  Xiuping Li,et al.  Evaluation of evapotranspiration estimates for two river basins on the Tibetan Plateau by a water balance method , 2013 .

[18]  Jian Sun,et al.  Meta-analysis of relationships between environmental factors and aboveground biomass in the alpine grassland on the Tibetan Plateau , 2013 .

[19]  Ward E. Sanford,et al.  Estimation of Evapotranspiration Across the Conterminous United States Using a Regression With Climate and Land‐Cover Data 1 , 2013 .

[20]  D. Zheng,et al.  Modeled effects of climate change on actual evapotranspiration in different eco-geographical regions in the Tibetan Plateau , 2013, Journal of Geographical Sciences.

[21]  Xie Jin-fa.  Spatiotemporal variation characteristics and related affecting factors of actual evapotranspi- ration in the second tributary of the Songhua and River basin,Northeast China. , 2013 .

[22]  Li Jingxi.  The Evaporation Variation and Its Influence Factors in Xi'ning of Qinghai Province , 2013 .

[23]  Dara Entekhabi,et al.  Estimates of evapotranspiration from MODIS and AMSR-E land surface temperature and moisture over the Southern Great Plains , 2012 .

[24]  R. Toumi,et al.  Impacts of the Nile Delta land‐use on the local climate , 2012 .

[25]  H. Tabari,et al.  Spatial distribution and temporal variation of reference evapotranspiration in arid and semi‐arid regions of Iran , 2012 .

[26]  P. Tao.  Impact of Climate Change on Actual Evapotranspiration on the Tibetan Plateau during 1981-2010 , 2012 .

[27]  Mo Shuhong.  Cause Analysis of Annual Variation of Evapotranspiration in Guanzhong Region , 2012 .

[28]  R. Dickinson,et al.  A review of global terrestrial evapotranspiration: Observation, modeling, climatology, and climatic variability , 2011 .

[29]  Yang Yongping,et al.  Alpine steppe plant communities of the Tibetan highlands , 2011 .

[30]  Jan Hanspach,et al.  Plant communities of central Tibetan pastures in the Alpine Steppe / Kobresia pygmaea ecotone , 2011 .

[31]  L. S. Pereira,et al.  Evapotranspiration information reporting: I. Factors governing measurement accuracy , 2011 .

[32]  Chong-yu Xu,et al.  Reference evapotranspiration changes in China: natural processes or human influences? , 2011 .

[33]  Shaohong Wu,et al.  Determining factors in potential evapotranspiration changes over China in the period 1971–2008 , 2010 .

[34]  Honglin He,et al.  Spatio-temporal variation of photosynthetically active radiation in China in recent 50 years , 2010 .

[35]  S. Seneviratne,et al.  Recent decline in the global land evapotranspiration trend due to limited moisture supply , 2010, Nature.

[36]  S. Running,et al.  A continuous satellite‐derived global record of land surface evapotranspiration from 1983 to 2006 , 2010 .

[37]  Jesse E. Bell,et al.  Rain use efficiency across a precipitation gradient on the Tibetan Plateau , 2010 .

[38]  Y. Wan,et al.  Spatial and temporal pattern of alpine grassland condition and its response to human activities in Northern Tibet, China , 2010 .

[39]  Yanhong Tang,et al.  Radiation partitioning and its relation to environmental factors above a meadow ecosystem on the Qinghai-Tibetan Plateau , 2010 .

[40]  Fu Yang.  Countermeasures for Qinghai-Tibet Plateau to Cope with Climate Change and Ecological Environment Safety , 2010 .

[41]  Jin Xiao-li.  CHANGE OF ACTUAL EVAPOTRANSPIRATION OF POYANG LAKE WATERSHED AND ASSOCIATED INFLUENCING FACTORS IN THE PAST 50 YEARS , 2010 .

[42]  Liangxia Zhang,et al.  Surface energy exchanges above two grassland ecosystems on the Qinghai-Tibetan Plateau , 2009 .

[43]  Yan Zeng,et al.  Change in pan evaporation over the past 50 years in the arid region of China , 2009 .

[44]  Chenghu Zhou,et al.  A Review of Current Methodologies for Regional Evapotranspiration Estimation from Remotely Sensed Data , 2009, Sensors.

[45]  J. Pereira,et al.  Evapotranspiration from a Mediterranean evergreen oak savannah: The role of trees and pasture , 2009 .

[46]  Narendra Singh Raghuwanshi,et al.  Temporal Trends in Estimates of Reference Evapotranspiration over India , 2009 .

[47]  Dawen Yang,et al.  Does evaporation paradox exist in China , 2009 .

[48]  Yanhong Tang,et al.  Characterizing evapotranspiration over a meadow ecosystem on the Qinghai-Tibetan Plateau , 2008 .

[49]  U. Tappeiner,et al.  Leaf area controls on energy partitioning of a temperate mountain grassland. , 2008, Biogeosciences.

[50]  Maosheng Zhao,et al.  Development of a global evapotranspiration algorithm based on MODIS and global meteorology data , 2007 .

[51]  Yanhong Tang,et al.  Trends in pan evaporation and reference and actual evapotranspiration across the Tibetan Plateau , 2007 .

[52]  Wu Shaohong,et al.  Climatic trends over the Tibetan Plateau during 1971-2000 , 2007 .

[53]  Steven W. Running,et al.  Evaluating water stress controls on primary production in biogeochemical and remote sensing based models , 2007 .

[54]  D. Zheng,et al.  Climatic trends over the Tibetan Plateau during 1971–2000 , 2007 .

[55]  W. Zhi,et al.  Review on Impact of Climate Change on Water Resources System in the Upper Reaches of Yellow River , 2006 .

[56]  S. Kanae,et al.  Global Hydrological Cycles and World Water Resources , 2006, Science.

[57]  Zheng Du,et al.  Uplifting of Tibetan Plateau with Its Environmental Effects , 2006 .

[58]  Chong-Yu Xu,et al.  Comparison of seven models for estimation of evapotranspiration and groundwater recharge using lysimeter measurement data in Germany , 2005 .

[59]  Chun-Ta Lai,et al.  Evapotranspiration from a wet temperate grassland and its sensitivity to microenvironmental variables , 2005 .

[60]  Baryohay Davidoff,et al.  Comparison of Some Reference Evapotranspiration Equations for California , 2005 .

[61]  S. Seneviratne,et al.  Basin scale estimates of evapotranspiration using GRACE and other observations , 2004 .

[62]  M. Roderick,et al.  Changes in Australian pan evaporation from 1970 to 2002 , 2004 .

[63]  M. Roderick,et al.  The cause of decreased pan evaporation over the past 50 years. , 2002, Science.

[64]  Lawrence B. Flanagan,et al.  Seasonal and interannual variation in evapotranspiration, energy balance and surface conductance in a northern temperate grassland , 2002 .

[65]  Peter E. Thornton,et al.  Recent trends in hydrologic balance have enhanced the terrestrial carbon sink in the United States , 2002 .

[66]  Lu Zhang,et al.  Response of mean annual evapotranspiration to vegetation changes at catchment scale , 2001 .

[67]  L. S. Pereira,et al.  Crop evapotranspiration : guidelines for computing crop water requirements , 1998 .

[68]  Mike Hulme,et al.  Evaporation and potential evapotranspiration in India under conditions of recent and future climate change , 1997 .

[69]  T. Yao,et al.  Ice core study--the past, the present and the future , 1997 .

[70]  J. Monteith.  SOLAR RADIATION AND PRODUCTIVITY IN TROPICAL ECOSYSTEMS , 1972 .

[71]  Donald B. Anderson.  Relative Humidity or Vapor Pressure Deficit , 1936 .