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Study on soil gleization in subtropic region of China using LBV transformed landsat images.

作  者:
Zeng ZhiYuan;Pan XianZhang;Zeng ZY;Pan XZ
单  位:
;Institute of Soil Science, Academia Sinica, P.O. Box 821, Nanjing 210008, China.
关键词:
land use;remote sensing;soil landsat gleyification china hubei hunan
摘  要:
A new type of transformed Landsat images (LBV images) and their application in discriminating soil gleyification in subtropical regions of China is described. LBV transformation was worked out for extracting useful information from original landsatimages. Using this method, three black and white images, L image, B image, and V image, were computer generated from original bands of a Landsat scene, which covered a large area of 34 528 km2 in Hubei and Hunan provinces in south China. Then a colour composite was produced from these three images. These kinds of black-and-white and colour images contained rich and definite geographic information. Using field work, the relationship between the colours on the composite and the land use/cover categories on the ground was established. Thirty-seven composite colours and 70 ground feature categories could be discriminated altogether. Finally, 17 land use/cover categories and 10 subregions affected by soil gleyification were determined, and the gleyificationarea for the study area was estimated to be 731.3 km2.

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