Spatial variability of soil nutrient and crop yield in Shanghai Chongming Island large-scale management farm was studied by modern geo-statistical and geographic information technology.
应用现代地统计学和地理信息技术在上海崇明岛研究了规模经营的农场土壤有效养分含量与作物产量的空间变异规律；
In the light of the principle of classical statistics, the study on the status and spatial variability of nutrient of lime concretion black soil in Huaibei plain was conducted.
应用经典统计学方法研究淮北平原砂姜黑土养分状况及其空间变异性。
The result showed that the homogeneous degree of the soil nutrient was increased, the variability of spectral index and the yield were reduced in the management zone divided by soil data.
结果表明，利用土壤养分和光谱数据划分的管理分区内，各土壤养分的均一度得到了提高，光谱指数和产量的变异系数普遍降低。
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