[关键词]
[摘要]
为掌握凉州区不同地貌温室土壤肥力状况,采用GIS定位取样测试、ACIGIS 软件数据分析和地统计分析方法,对凉州区的日光温室土壤养分状况进行分析评价。结果表明,日光温室0~20 cm 耕层土壤,低山丘陵区pH和盐分最低,有机质、碱解氮、有效磷均最高;山前洪积冲积倾斜平原区有机质最低,碱解氮、有效磷较低山丘陵区低,较冲积洪积细土平原区高,盐分、速效钾含量最高。日光温室20~40 cm耕层土壤,低山丘陵区有机质、碱解氮、有效磷、速效钾均高于山前洪积冲积倾斜平原区和冲积洪积细土平原区。
[Key word]
[Abstract]
In order to grasp the status of the different landscape greenhouse soil fertility in liangzhou district, Using GIS positioning sampling test, ACIGIS software data analysis and statistical analysis method, soil nutrient status of liangzhou district of solar-greenhouse are analyzed and evaluated . The result shows that in 0~20 cm arable layer soil of low hilly land lowest pH and salt, organic matter, alkaline hydrolysisn, available P are the highest; Tilt piedmont pluvial alluvial plains in the lowest soil organic matter, soil alkaline hydrolysis N, available P is lower than those of low hilly land, relatively high plains, alluvial diluvial fine soil salt content, available K in the highest in the three landform areas . In 20~40 cm in the top layer, low hilly land, organic matter, alkali-hydro nitrogen, available phosphorus, available potassium and higher than tilt piedmont pluvial alluvial plain and alluvial diluvial fine soil plain .
[中图分类号]
S151.9;S625
[基金项目]
农业部测土配方施肥试点补贴资金项目