摘要
pH值是土壤重要属性之一,研究耕地pH值的分布及其与土壤主要养分之间的关系,对土壤改良和合理高效施肥具有重要参考作用。研究利用统计分析以及地理空间分析技术,分析了长株潭地区耕地土壤pH值分布情况,及不同pH值土壤养分含量的差异状况。结果表明,长株潭耕地pH值以湘潭县最高,炎陵县最低;土壤类型中的pH均值依序为:紫色土>潮土>水稻土>黄壤>红壤>黄棕壤;除有效磷外,各土壤养分在不同pH值组分间均有显著差异。
pH is one of the most important soil properties. It can provide important references for soil improvement and reasonable fertilization to study on relationship between the distribution ofpH and soil nutrients.The cultivated soil pH and soil nutrient were analysed by statistical and spatial analysis technologyin Chang-Zhu-Tan area. The results showed that： pH value of soil samples in Xiangtan County was highest and that inYanling County was lowest. The order of soil pH mean value of soil types was purple soil〉 alluvial soil〉 paddy soil〉 yellow soil〉 red soil〉 yellow brown soil. Soil nutrients had significant differences in different pH group except available phosphorus.
出处
《湖南农业科学》
2015年第4期57-59,62,共4页
Hunan Agricultural Sciences
基金
国家科技支撑计划项目(2012BAD14B17)
关键词
长株潭
耕地
PH
土壤养分
Chang-Zhu-Tan area
cultivated land
pH
soil nutrients
