不同土壤类型有效微量元素的空间特征——以张掖市临泽县为例

发布时间：2018-06-14 11:22

本文选题：土壤类型 + 全量微量元素　；参考：《水土保持研究》2017年06期

【摘要】：以临泽县土壤(0—20cm)中有效Mn,Zn,Fe,Cu,B微量元素为研究对象,运用GIS和地统计学相结合的方法研究了不同土壤类型有效微量元素的空间分布特征,绘制了空间分布图,最后根据甘肃省耕层土壤养分分级标准对临泽县有效土壤微量元素进行综合评价。结果表明:盐渍土、灰棕漠土、流动风沙土普遍缺有效微量元素,泥炭沼泽土、灌耕厚立土、草甸盐土中的有效微量元素含量相对较高;临泽县土壤中有效微量元素含量整体上处于中等水平,为了当地农业生产的需要,可以提高微肥用量和改善微肥的施用措施来增加土壤中微量元素含量。
[Abstract]:The spatial distribution characteristics of available trace elements in different soil types were studied by using GIS and geostatistics, and the spatial distribution map was drawn. Finally, according to the grading standard of soil nutrient in cultivated layer of Gansu Province, the trace elements of available soil in Linze County were comprehensively evaluated. The results showed that the available trace elements in salinized soil, grey brown desert soil, flowing sandy soil were generally short of available trace elements, and the contents of available trace elements in peat swamp soil, irrigated thick standing soil and meadow salt soil were relatively high. The content of available trace elements in the soil of Linze County is in the middle level as a whole. In order to meet the needs of local agricultural production, the amount of micro-fertilizer can be increased and the application measures of micro-fertilizer can be improved to increase the content of trace elements in the soil.
【作者单位】：天水师范学院资源与环境工程学院;西北师范大学地理与环境科学学院;
【基金】：天水师范学院中青年教师科研项目“基于GIS的土壤中金属元素分析与评价”(TAS1615)
【分类号】：S153.6

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