[1] [1] Clevers J G P W, Van der Heijden G W A M, Verzakov S, et al. Data Photogrammetric Engineering & Remote Sensing, 2007, 73(10): 1141.

[2] [2] Gao X, Huete A R, Ni W, et al. Remote Sensing of Environment, 2000, 74(3): 609.

[3] [3] Todd S W, Hoffer R M, Milchunas D G. International Journal of Remote Sensing, 1998, 19(3): 427.

[4] [4] Clevers J G P W, Jongschaap R. Remote Sensing and Digital Image Processing, 2001, 4: 157.

[5] [5] Kokaly R F, Despain D G, Clark R N, et al. Remote Sensing of Environment, 2003, 84(3): 437.

[6] [6] Mutanga O, Skidmore A K. International Journal of Applied Earth Observation and Geoinformation, 2004, 5(2): 87.

[7] [7] Mutanga O, Skidmore A K, Kumar L, et al. International Journal of Remote Sensing, 2005, 26(6): 1093.

[8] [8] El-Masry G, Wang N, El-Sayed A, et al. Journal of Food Engineering, 2007, 81(1): 98.

[9] [9] Atzberger C, Guerif M, Baret Frederic, et al. Computers and Electronics in Agriculture, 2010, 73(2): 165.

[10] [10] Naesset E, Bollandsas O M, Gobakken T. Remote Sensing of Environment, 2005, 94(4): 541.

[11] [11] Jensen T, Apan A, Young F, et al. Computers and Electronics in Agriculture, 2007, 59(1-2): 66.

[12] [12] Savitzky A, Golay M J E. Analytical Chemistry, 1964, 36(8): 1627.

[13] [13] Haboudane D, Miller J R, Pattey E, et al. Remote Sensing of Environment, 2004, 90(3): 337.

[14] [14] Gitelson A A, Merzlyak M N. Journal of Plant Physiology, 1996, 148(4): 494.

[15] [15] Hutet A R. Remote Sensing of Environment, 1988, 25(3): 295.

[16] [16] Qi J, Chehbouni A, Huete A R, et al. Remote Sensing of Environment, 1994, 48(2): 119.

[17] [17] Broge N H, Leblanc E. Remote Sensing of Environment, 2000, 76(2): 156.

[18] [18] Durbha S S, King R L, Younan N H. Remote Sensing of Environment, 2007, 107(1-2): 348.

[19] [19] Sims D A, Gamon J A. Remote Sensing of Environment, 2002, 81(2-3): 331.

[20] [20] Gitelson A A. Journal of Plant Physiology, 2004, 161(2): 165.

[21] [21] Dawson T P, Curran P J. International Journal of Remote Sensing, 1998, 19(11): 2133.

[22] [22] Penuelas J J, Pinol R, Ogaya R, et al. International Journal of Remote Sensing, 1997, 18(13): 2869.

[23] [23] Gao B C. Remote Sensing of Environment, 1996, 58(3): 38.

[24] [24] Dash J, Curran P J. International Journal of Remote Sensing, 2004, 25(23): 5403.

[25] [25] Kooistra L, Salas E A L, Clevers J G P W, et al. Environmental Pollution, 2004, 127(2): 281.