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[1]JIA Lian-lian,WANG Xiao-jiang.A Preliminary Estimation of Water Surface Evaporation in Loess Plateau[J].Research of Soil and Water Conservation,2013,20(03):143-145.

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A Preliminary Estimation of Water Surface Evaporation in Loess Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 03 Page number: 143-145 Column: Public date: 2013-06-28

Title:: A Preliminary Estimation of Water Surface Evaporation in Loess Plateau

Author(s):: JIA Lian-lian, WANG Xiao-jiang; Upper and Middle Yellow River Bureau, Yellow River Conservancy Commission of the Ministry of Water Resources, Xi’an 710021, China

Keywords:: water surface evaporation; remote sensing; Kriging interpolation; drought index; Loess Plateau

CLC:: P426.2

DOI:: -

Abstract:: In order to estimate the water surface evaporation and the spatial variation of drought index on the Loess Plateau, the data of 154 evaporation stations and 216 precipitation stations were collected across the Loess Plateau and the adjacent areas. The surface evaporation, drought index of the Loess Plateau were analyzed by using the Kriging interpolation method. The result show that annual average surface evaporation ranges from 1 107 mm to 3 308 mm, increases from southeast to the northwest by turns; water body area is 1 326.48 km², accounting for 0.21% of total area, the total average annual water surface evaporation of water body was estimated to be 2.628×10⁹ m³ in Loess Plateau combining the evaporation data, accounting for 0.90% of the total annual average rainfall; the percentages of subhumid zone, semi-arid zone and arid zone are 26.18%, 53.73% and 20.09%, respectively. The research result has an important reference for water resources utilization on the Loess Plateau.

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