鞍山市耕地土壤pH值、有机质时空变化分析

Research on pH,Organic Matter Change Temporal and Spatial Variation Tendency of Farmland Soil in Anshan City

为了掌握鞍山市耕地土壤pH值和有机质状况,提高耕地质量建设管理和科学施肥水平,通过对鞍山市30 362个耕地土壤样品pH值、有机质进行检测与调查,系统分析了自1980年第2次土壤普查至2012年近32年来全市耕地土壤pH、有机质时空变化趋势。结果表明:自1980年至2012年,鞍山市耕地土壤pH值已出现较明显的下降,土壤酸化趋势比较明显,有机质含量总体水平下降,趋于向较缺乏水平集中。

In order to grasp the pH cultivated soils in Anshan city and organic matter status, i quality of cultivated land, construction management and scientific fertilization level, by the city o mproving the f Anshan, 30 362 soil samples of pH value, organic matter detection and investigation, system analysis since 1980 second soil survey in 2012 to nearly 32 years in the city of pH, results showed that： from 1980 to 2012, pH cultivated soil acidification trend more obvious, the overall content soil organic matter temporal and spatial variation. The soils in Anshan city value has declined significantly, of organic matter decreased, tends to lack the level of concentration.