Liu Bingjun, Shao Dongguo, Shen Xinping. Advances in researches on the spatial-temporal features of crop water requirement[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2007, 23(5): 258-264.
    Citation: Liu Bingjun, Shao Dongguo, Shen Xinping. Advances in researches on the spatial-temporal features of crop water requirement[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2007, 23(5): 258-264.

    Advances in researches on the spatial-temporal features of crop water requirement

    • Influenced by meteorological, soil, planting conditions and so on, crop water requirement is obviously characterized by its spatial-temporal heterogeneity on different scales. As the result of this heterogeneity, the theories and models of crop water requirement were highly scale-dependent. The calculation method of spatial-temporal features of crop water requirement was expounded. Finally, this paper suggests that, based on the experimental data, a new multi-scale crop water requirement estimating model of theoretical basis and wide application should be developed, and the spatial-temporal features of crop water requirement should be analyzed, using the complexity theories such as the fractal theory, the wavelet analysis and the information entropy approach.
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