黄河三角洲盐碱地不同利用方式下土壤无机磷组分特征  

Characteristics of Inorganic Phosphorus in Saline Soil for Different Utilizations on Yellow River Delta Region

作　　者：李学平[1] 刘萍[1] 邹美玲[1] 荣琨[1] 

机构地区：[1]滨州学院城市与环境系,山东滨州256603

出　　处：《滨州学院学报》2011年第3期50-53,共4页Journal of Binzhou University

基　　金：国家公益性行业(农业)科研专项经费项目(200903001-7-3)

摘　　要：采用蒋柏藩-顾益初无机磷形态分级方法对黄河三角洲盐碱地试验田、藤柳林、芦苇地和石榴林4种不同利用方式下土壤无机磷组分特征进行了研究.结果表明,4种不同利用方式下盐碱地土壤无机磷各形态以Ca8-P、Ca10-P和Al-P为主,约占无机磷总量的77.41%,其中以钙结合态磷所占的比例最大,即盐碱地不同利用方式下土壤无机磷含量是以钙磷为主.石榴林由于在土壤中加入了石灰质,改变了土壤的特性且对土壤中Al-P含量影响较大,Al-P含量高达205.0 mg/kg,显著高于其他土地利用方式.盐碱地4种不同利用方式下土壤中O-P和Ca8-P含量相差不大,土地利用方式对土壤中O-P和Ca8-P含量影响较小.Inorganic phosphorus component characteristics of the four different saline soils on Yellow River Delta Region are studied in the paper.There are experimental field,willow,reed,and pomegranate field,respectively.The results show that Ca8-P,Ca10-P and Al-P accounted for 77.41% in total inorganic phosphorus.Calcium phosphate is the most important form.Al-P content is 205.0mg/kg which is higher than other forms of land use for applying lime.O-P and Ca8-P content are equivalent in the four kinds of land utilization and land using patterns less affected O-P and Ca8-P contents.

关 键 词：黄河三角洲 盐碱地 不同利用方式 无机磷组分 

分 类 号：S151.9[农业科学—土壤学]