人为作用对朝阳土壤发生学特性的影响研究  

Research on the Effects of Human Impact on Soil Genetic Characteristics in Chaoyang City

作　　者：刘杨杨[1] 孙洋[1] 顾欣燕[1] 肖寒[1] 张寅寅[1] 

机构地区：[1]沈阳农业大学土地与环境学院,沈阳110866

出　　处：《农业科技与装备》2013年第5期10-11,14,共3页Agricultural Science & Technology and Equipment

摘　　要：选取朝阳市具有代表性的旱地、水田、果园和林地4种不同利用方式类型的土壤作为研究对象,测定表层土壤机械组成、有机碳、全氮和阳离子交换量,判定4种利用方式对土壤发生学特性的影响。结果表明:水田土壤黏粒含量最高、粉黏比最小,其次是旱地,再次为果园,林地土壤黏粒含量最低、粉/黏比最高;有机碳和全氮含量表现为水田>旱地>林地>果园;土壤C/N表现为林地>果园>水田>旱地;阳离子交换量差异较大,表现为水田>旱地>林地>果园。This article selects 4 typical types of different ways of using the soil in Chaoyang city, which includes dry land, paddy field, orchard and forest land as the research objects. With the surfacesoil samples, soil mechanical compote. The content of organic carbon and nitrogen shows： paddy field〉dry land〉forest land〉orchards; The C/N is expressed as forest land〉orchards〉paddy field〉dry land. The numericals of the Cation exchange capacity are far different among the four, the order from high to low the paddy field〉dry land〉forest lasition and cation exchange capacity are measured. Through the analysis of the differences and determine four effects of different ways of using on soil genesis characteristics, results showed that the paddy field soil clay content is highest and powder/sticky is the minimum, which followed by dry land, again for orchard, of which soil clay content is the lowest, powder/sticky is the highest paddy field〉dry land〉 forest land〉orchard.

关 键 词：人为作用 利用方式 土壤 发生学特性 影响 

分 类 号：S151[农业科学—土壤学]