贵德县域耕地土壤养分含量空间变异分析OA
Analysis of Spatial Variability of Soil Nutrients in Farmland of Guide County
以青海省贵德县耕层土壤(0～20 cm)为研究对象,利用GIS和县域耕地资源管理信息系统分析该地区的土壤有机质、碱解氮、速效钾、有效铁、有效锌等养分含量的空间分布,探讨养分含量变化规律、空间分布规律及变动原因.结果表明:贵德县土壤速效钾、有效锌含量处于高水平面积分别占总面积的61.48％、99.26％;有机质处于低水平的面积占总面积的48.05％,而碱解氮含量处于中水平的面积占总面积的53.16％;有效铁含量处于低水平的面积占总面积的72.96％.
Taking topsoil soil (0-20 cm) in Guide County of Qinghai Province as research object,nutrient content of soil including organic matter,alkaline hydrolysis nitrogen,available potassium,effective iron,effective zinc,was analyzed using GIS and the county territory farming resource management information system.Change rule,spatial distribution rule and change reasons of these kinds of nutrient content were studied.The result indicated that the availa…查看全部>>
何建兰
青海省贵德县农业技术推广中心,青海贵德811700
农业科技
GIS空间变异耕地土壤养分
GISSpatial variabilityFarmlandSoil nutrients
《安徽农业科学》 2018 (3)
110-112,127,4
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