水盐空间变异性监测的条件模拟

本文用地质统计学的条件模拟(CS)理论对24hm2实验区的水盐监测系统，进行了两种田间尺度空间变异性的模拟，与普通Kriging(OK)法估计比较：CS的模拟方差接近实验值并可较好地揭示水盐特性空间变异的波动过程，在掌握一定距离若干控制点的采样后，可以较少钻孔模拟孔间的空间变异规律及其离散性，有突出优点；但模拟值不如OK估计能平均的接近实验值，研究认为CS和OK法各有优缺点，在水盐监测时，模拟和估计因目标不同，必须结合使用。

Study on conditional simulation of soil water-salt spatial variablity monitoring

The conditional simulations of spatial variability of soil water0salt monitoring system for two field scales by using conditional simulation theory of geostatistics are presented in this paper. The variance of conditional simulation is close to the experimental result and well reflects the fluctuation of soil water-salt spatial variability. According to the sample of several control points, the law of spatial variability and the properties of divergence between boreholes can be simulated. But the simulated values are not very close to the experimental results as ordinary Kriging method. The study results show that the conditional simulation and ordinary Kriging method have their own advantages and disadvantages. These two methods should be jointly used.