单 位：
河南省土壤肥料站;郑州大学公共管理学院;郑州大学水利与环境学院
摘 要：
[目的]研究不同母质类型下耕地土壤速效锌与速效钼的空间变异及其影响因子。[方法]以河南驻马店市泌阳县为研究区域,测定406个耕地土壤耕层样品的土壤速效锌、速效钼含量,分析不同成土母质来源下泌阳县耕地样点速效锌、速效钼含量,利用灰色关联分析研究不同母质下土壤速效锌、速效钼与全氮、速效磷、速效钾、有机质、高程、采样点5 km范围内面积超过200 m2的采矿用地数量的灰色关联度。此外,采用地统计学方法对速效锌、速效钼含量的空间变异规律进行研究。[结果]速效锌和速效钼均属中等变异,锌的变异性大于钼,不同母质类型下速效钼和速效锌的含量存在显著差异。不管何种母质的土壤样点中,高程与锌、钼的关联度水平均较高,高程为影响锌、钼变异的重要原因。半方差函数分析表明,锌的最适模型为指数模型,钼为线性模型,都存在一定的空间自相关性。[结论]锌含量高值区在四周都有分布,中部含量较低,在锌缺乏的区域要注意施加锌肥。钼的高值区主要集中在中上部区域,速效钼含量整体水平相对较高。
译 名：
Spatial Variability and Affecting Factors of Soil Available Zinc and Molybdenum of Agricultural Land in Different Parent Materials
作 者：
REN Yu;CHEN Jie;HAN Xing-xing;School of Public Administration,Zhengzhou University;School of Water Conservation and Environment,Zhengzhou University;
关键词：
Available zinc;;Available molybdenum;;Parent material;;Grey correlation analysis
摘 要：
[Objective] To study spatial variability and affecting factors of soil available zinc and molybdenum of agricultural land in different parent materials. [Method]Biyang County was selected as the case study area. A total of 406 soil samples were collected from the farmlands in Biyang for analysis of soil available zinc(Zn) and molybdenum(Mu). Through analysis of variance,we worked out whether there were significant differences in the soil samples under different parent materials. Taking the available Zn and Mu of soil under different parent materials as the reference quantities,we used the grey correlation analysis method to calculate separately the degree of gray correlation between reference quantities and total nitrogen,available phosphorus,available potassium,organic matter,elevation,the number of sampling points of mining land with an area over 200 m2 within 5 km. In addition,the spatial variation of available Zn and Mu was investigated by geo-statistical methods.[Result]Available Zn and Mu were both moderately variable,while the variability of Zn was greater than Mu. There were significant differences in the contents of available Zn and Mu under different parent materials. The elevation had high levels of gray correlation with Zn,Mu,regardless of the parent materials,indicating that elevation was an important cause of variation of Zn,Mu. The analysis of semi-variance function showed that the optimal model of Zn was exponential model,while Mu linear model. [Conclusion]The area with higher content of Zn was distributed all around,the low content in the middle. Zn fertilizer should be applied in areas where Zn was deficient. The high value zone of Mu was mainly distributed in the upper middle of the study area. In general,the effective Mu content of cultivated land in Biyang County was relatively high.
