[1]ZHOU Ling,ZHANG Li,XU Junyi,et al.Analysis of the Variations of Evapotranpiration in Lijiang River Basin Based on SEBAL Model[J].Research of Soil and Water Conservation,2015,22(04):332-337.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 04
Page number:
332-337
Column:
Public date:
2015-08-28
- Title:
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Analysis of the Variations of Evapotranpiration in Lijiang River Basin Based on SEBAL Model
- Author(s):
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ZHOU Ling1,2, ZHANG Li1, XU Junyi2, LIU Guang1
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1. Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China;
2. Geomatics College, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
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- Keywords:
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remote sensing; Lijiang River Basin; land use and land cover; evapotranspiration; SEBAL model
- CLC:
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TP79
- DOI:
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- Abstract:
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Based on Landsat TM/ETM+ images in 1993, 1999, 2006 and 2010, regional evapotranspiration were estimated using the SEBAL model. The P-M model and the data from meteorology station were used to verify the accuracy of ET estimation from SEBAL model. The results shows that:(1) the evapotranspiration in Lijiang River Basin was strongly influenced by season and climate, and ET in growing season was much higher than that during other seasons; (2) the ET in the Lijiang River basin had the obvious spatial variations depending on different vegetation types, and the evapotranspiration for different periods all presented the sequence of woodland > water > bush/grassland > cropland > construction land; (3) the land use and land cover of the Lijiang River Basin had changed drastically, which had strongly influenced ET in the study region. ET showed teh declining trend due to the forest degradation, which further indicated the influences of economic development and human activity on the environment and water-heat balance in the Lijiang River basin.