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首页> 外文会议>Conference on Ecosystems' Dynamics, Agricultural Remote Sensing and Modeling, and Site-Specific Agriculture; Aug 7, 2003; San Diego, California, USA >Spatial variability of soils in vegetation zone of Fukang oasis
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Spatial variability of soils in vegetation zone of Fukang oasis

机译：阜康绿洲植被带土壤空间变异性

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Soil samples collected from vegetation zone of Fukang oasis in South Junggar Basin were analyzed. The soil samples were air-dried and their PH values, electrical conductivity and total salts were analyzed hi the laboratory. Soil samples were weighted and mixed with distilled water by a ratio of 1:5 after stirred and settled over night. Moisture content of soil was measured by the dry-method, PH value was measured by SM-10 digital acidity-meter, and electrical conductivity was measured by weight-method. The PH value, electrical conductivity and total salts of soil were measured from 0-10cm, 10-30cm and 30-50cm vertically. The study uses SAS software to analyze the statistical characteristic of the moisture content, electrical conductivity and total salts of the soil samples. The results show that soil properties are inhomogeneous. From the surface to below 50cm, moisture content and electrical conductivity increase successively, the change of PH value is not significant. The soil is alkalescence, In most circumstances, the data of moisture content, PH value and electrical conductivity are normally distributed. But, in the procession, soil properties influenced by systematic variance of soil properties deviated for normal distribution with various degrees. Soil moisture content, PH value and electrical conductivity do not satisfy simple linear relation at the vegetation zone of Fukang oasis. Using the method of trend surface analysis, the polynomial relation of variances (P<0.01) was obtained and found that moisture content is higher related with electrical conductivity at different depths, but the correlation between moisture content and PH value, and the correlation between PH value and electrical conductivity change with different environment factors.
机译：分析了准Jung尔盆地南部阜康绿洲植被带收集的土壤样品。将土壤样品风干，并在实验室中分析其PH值，电导率和总盐分。称重土壤样品，搅拌过夜后与蒸馏水按1：5的比例混合。用干法测定土壤水分，用SM-10数字酸度计测定PH值，用重量法测定电导率。垂直测量土壤的PH值，​​电导率和总盐分，范围为0-10cm，10-30cm和30-50cm。该研究使用SAS软件分析了土壤样品的水分含量，电导率和总盐的统计特征。结果表明，土壤性质不均匀。从表面到50cm以下，水分和电导率依次增加，PH值变化不明显。土壤是碱性的，在大多数情况下，水分含量，PH值和电导率的数据呈正态分布。但是，在游行中，受土壤性质系统性变化影响的土壤性质在一定程度上偏离正态分布。阜康绿洲植被带土壤水分，PH值和电导率不满足简单的线性关系。利用趋势面分析的方法，得到了多项式的方差关系（P <0.01），发现在不同深度下，水分含量与电导率相关性更高，但是水分含量与PH值之间的相关性以及PH值之间的相关性值和电导率随环境因素的不同而变化。

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