[1]WU Yanfeng,Bake·Batur,LI Wei,et al.Spatiotemporal Variation of Reference Crop Evapotranspiration in Altay Region[J].Research of Soil and Water Conservation,2015,22(05):260-265.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 05
Page number:
260-265
Column:
Public date:
2015-10-28
- Title:
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Spatiotemporal Variation of Reference Crop Evapotranspiration in Altay Region
- Author(s):
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WU Yanfeng1, Bake·Batur1, LI Wei1, WEI Xiaoqin1, Jiayi’naguli·wozhatihan1, Rasulov H H2
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1. College of Grassland and Environmental Science, Xinjiang Agricultural University, Urumqi 830052, China;
2. Faculty of Hydrometeorology, Tajik Agrarian University, Dushanbe 734003, Tajikistan
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- Keywords:
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Altay region; reference crop evapotranspiration; spatiotemporal variation
- CLC:
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S161.4
- DOI:
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- Abstract:
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The values of reference crop evapotranspiration were calculated using the Penman-Monteith model based on the daily meteorological data observed from 7 meteorological stations in Altay region of Northern Xinjiang Uygur Autonomous Region during the period from 1961 to 2012. The annual and seasonal values of reference crop evapotranspiration were analyzed using the Mann-Kendall nonparametric method, wavelet analysis and spatial analysis tools of ArcGIS. The results are as follows. The annual and spring values of reference crop evapotranspiration presented significantly increasing trend, whereas the summer, autumn and winter values of reference crop evapotranspiration presented decreasing trend during the past 52 years. The annual and summer values of reference crop evapotranspiration presented abrupt change in 1994 and 1992, respectively. However, the values of reference crop evapotranspiration in spring, autumn and winter have no abruption. Obviously, the annual and four seasonal values of reference crop evapotranspiration have 27-year period. The annual, spring, summer and autumn values of reference crop evapotranspiration were higher in the southern Altay City and northern Fuhai County, followed by eastern and western regions. The spring values of reference crop evapotranspiration all presented increasing trend in Altay region, whereas the annual, summer, autumn and winter values of reference crop evapotranspiration presented increasing trend in eastern region of Altay and decreasing trend in the western region of Altay.