[1]LI Liang,ZHAI Jin,SHI Hai-bin.Study of Regional Evapotranspiration of Hetao Irrigationg District Based on TM Images[J].Research of Soil and Water Conservation,2012,19(05):248-252.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 05
Page number:
248-252
Column:
Public date:
2012-10-20
- Title:
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Study of Regional Evapotranspiration of Hetao Irrigationg District Based on TM Images
- Author(s):
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LI Liang1, ZHAI Jin2, SHI Hai-bin3
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1. Institute of Water Resources for Pastoral Area, Hohhot 010020, China;
2. Inner Mongolia Autonomous Region Water Resource and Hydropower Survey Design Institute, Hohhot 010020, China;
3. College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
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- Keywords:
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TM5; Hetao irrigation district; evapotranspiration; remote sensing
- CLC:
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TP751
- DOI:
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- Abstract:
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Based on the analysis of romote sensing data, used non-supervised classification to classify the image, and at last the land classification and crop planting structure were determined. High-resolution IKONOS was used to assess the accuracy of image classification results.It proved that TM image had high accuracy for the land-use classification on the irrigation district scale. The results showed that it could effectively overcome the impact of human factors. Crop acreage and its space distribution could be extracted more accurately. The SEBAL model was used to invert evapotranspiration. The inversion results were closed to the measured values. This study provides a new method for the research of water consumption in Hetao irrigation district.