Soil characteristics spatial variability is one of the important attributes of soil, and its sources of variation includes random variation and system variation.
土壤特性的空间变异性是土壤重要的属性之一，其变异来源包括系统变异和随机变异两种。
The light intensity had characteristics of temporal and spatial variation.
光照强度在杏树行间的分布具有时空变化特征。
The land use spatial distribution pattern had a decisive impact on the inter-year variation characteristics of both runoff and sediment.
土地利用类型的空间分布格局决定了径流和泥沙的年际变化特征。
Besides, the spatial distribution characteristics and significance of the principal components and the variation of their monthly averaged values were studied.
研究了各主成分的空间分布特征、意义以及月均值随时间的变化规律。
And a theoretical model is established to expound the variation of pulse duration and the modulation on the pulse envelope similar to the diffraction characteristics in spatial domain.
通过与光束的空间传输特性类比解析了光栏宽度变化引起的脉宽变化以及脉冲轮廓出现时间衍射调制现象；
The temporal distribution characteristics of sunshine duration and its spatial variation with different altitude, slope and aspect were analyzed.
并分析了山区实照时数的时间分布特征和不同海拔高度、坡度和坡向上年实照时数的空间分布特征。
By experience orthogonal function analysis and wavelet analysis on chilling damage indices, it showed spatial-temporal variation in the regulation and multiple-time-scale characteristics.
在此基础上对低温冷害指数进行经验正交分解和小波分析，得到其时空变化规律及多时间尺度特征。
By experience orthogonal function analysis and wavelet analysis on chilling damage indices, it showed spatial-temporal variation in the regulation and multiple-time-scale characteristics.
在此基础上对低温冷害指数进行经验正交分解和小波分析，得到其时空变化规律及多时间尺度特征。
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