[4] [4] Lobell D B, Asner G P. Remote Sensing of Environment, 2004, 93: 412.

[5] [5] Langley S K, Cheshire H M, Humes K S, et al. Journal of Arid Environments, 2001, 49: 401.

[6] [6] Wessels K J, De Fries R S, Dempewolf J, et al. Remote Sensing of Environment, 2004, 92: 67.

[7] [7] Chen Dao-yi, Huang Jing-feng, Jackson J T. Remote Sensing of Environment, 2005, 98: 225.

[8] [8] Busetto L, Meroni M, Colombo R. Remote Sensing of Environment, 2008, 112: 118.

[9] [9] Fang H, Wu B, Liu H, et al. International Journal of Remote Sensing, 1998, 19: 521.

[11] [11] Zhang Mingwei, Zhou Qingbo, Chen Zhongxin, et al. International Journal of Applied Earth Observation and Geoinformation, 2008, 10: 476.

[14] [14] Lobo A, Chic O, Casterad A. International Journal of Remote Sensing, 1996, 17: 2385.

[15] [15] Aplin P, Atkinson P M. Photogrammetric Engineering and Remote Sensing, 2004, 70: 141.

[16] [16] Chen Jin, Jonsson P, Tamura M, et al. Remote Sensing of Environment, 2004, 91: 332.

[17] [17] Oetter Doug R, Cohen Warren B, Berterretche Mercedes, et al. Remote Sensing of Environment, 2000, 76: 139.

[19] [19] https://wist.echo.nasa.gov/api/.