聊城市耕层土壤养分时空变化特征  

Study of Temporal and Spatial Distribution in Cultivated Horizon of Soil Nutrient in Liaocheng City

作　　者：曹建荣[1] 董杰[1] 刘衍君[1] 李志龙[2] 

机构地区：[1]聊城大学环境与规划学院,山东聊城252059 [2]湖南商学院旅游管理学院,湖南岳阳410205

出　　处：《湖北农业科学》2010年第6期1340-1343,共4页Hubei Agricultural Sciences

基　　金：山东省自然科学基金项目(Y2006E02);山东省优秀中青年科学家奖励基金项目(2007BS08026)

摘　　要：以山东省聊城市2007年采集的土壤样品与1985年土壤普查数据为数据源,分析了聊城市20多年来土壤养分的空间变化规律,并对成因进行分析。结果表明,聊城市土壤在有机质、氮、磷等方面有了根本提高,空间分布从西部到东部呈不断增加的趋势,总体养分状况良好,但钾的含量出现下降趋势。A study had been carried out to the spatial variation of soil nutrients and the cause in Liaocheng city based on the data of soil survey for 1985 and field data for 2007. The results showed that organic matter, nitrogen and phosphorus, etc had increased obviously, and its distribution had moved from west to east, the overall nutrients were in a good station, but the potassium content had declined since 1985.

关 键 词：土壤养分 空间分布 KRIGING插值 聊城市 

分 类 号：S151.95[农业科学—土壤学]