[1]WANG Jun,LI He-ping,LU Hai-yuan,et al.Research for Evapotranspiration of the Typical Grassland[J].Research of Soil and Water Conservation,2013,20(02):69-72.
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Research for Evapotranspiration of the Typical Grassland
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 02
Page number:
69-72
Column:
Public date:
2013-04-28
- Title:
- Research for Evapotranspiration of the Typical Grassland
- Keywords:
- evapotranspiration; surface energy balance algorithm for land; analysis of correlation; Xilin river basin
- CLC:
- TP79
- DOI:
- -
- Abstract:
- As the key factor affected uneven regional distribution of water resources, ET values estimated or simulated accurately are of the great significance for many fields, such as raising water resource use efficiency and its temporal and protecting ecological environment. Xilin River basin was selected as the case study that is typical grassland in China, sorted out TM data and meteorology data, and built the SEBAL model to calculate ET by remote sensing technology and GIS. The results showed that evapotranspiration of the basin ranged from 0 to 9.1 mm daily, but evapotranspiration of the 70% areas of the basin merely alternated between 0 and 2 mm daily. The result also showed that the ET24 of water areas was relatively higher and the ET24 of grassland was relatively lower, what’s more, the change of surface temperature had greater influence on ET from the result of correlation analysis. The model inversion results have greater significance on the quantification of water resources management and establishment of the theory foundation to study the water-glass-livestock system balance.
- References:
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1900-01-01