北方农业学报 ›› 2019, Vol. 47 ›› Issue (2): 46-51.doi: 10.3969/j.issn.2096-1197.2019.02.08

• 著者文摘 • 上一篇    下一篇

不同土地利用类型下盐渍土土壤盐碱特征的变化

景宇鹏[1,2];高娃[2,3];狄彩霞[1];栗燕芳[1];莎娜[1];王文曦[1];张欣昕[1];连海飞[1]   

  1. [1]内蒙古农牧业科学院资源环境与检测技术研究所,内蒙古呼和浩特010031;[2]内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特010010;[3]内蒙古土壤肥料与节水农业工作站,内蒙古呼和浩特010011
  • 收稿日期:2018-11-02 出版日期:2019-02-19 发布日期:2019-08-19
  • 作者简介:景宇鹏(1983—),男,副研究员,博士,主要从事土壤改良与培肥的研究工作。
  • 基金资助:
    国家自然科学基金项目(41501578);内蒙古自治区自然基金项目(2017MS0313);内蒙古农牧业科学院青年创新基金项目(2018QNJJN10).

Salinization characteristics of saline-alkali soil under different land use types

JING Yupeng[1,2];GAO Wa[2,3];DI Caixia[1];LI Yanfang[1];SHA Na[1];WANG Wenxi[1];ZHANG Xinxin[1];LIAN Haifei[1]   

  1. [1]Institute of Resources Environment and Detection Technology,Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences,Hohhot 010031,China;[2]College of Grassland,Resources and Enviroment,Inner Mongolia Agricultural University,Hohhot 010011,China;[3]Inner Mongolia Soil and Fertilizer Work Station,Hohhot 010011,China
  • Received:2018-11-02 Online:2019-02-19 Published:2019-08-19

摘要: 为探讨土默川平原不同土地利用类型对盐渍化土壤盐碱特征的影响,采用野外取样与室内分析测试相结合的方法,以盐渍化土壤经5种不同利用类型下的土壤为研究对象,研究不同利用类型下土壤盐分离子组成、全盐量、pH、碱化度在土壤剖面中的变化规律。结果表明:不同土地利用类型下土壤盐分离子组成、全盐含量均存在明显的空间分布特征,属中强度变异性,其中牧草地和林地剖面土壤全盐量随土层深度增加表现为先增大后降低、盐荒地和改良地随土层深度增加逐渐降低、农用地随土层深度增加而增大;土壤pH与碱化度在土壤剖面中的分布特征基本一致,盐碱地在不同利用类型下土壤的盐碱化程度均有所下降,大小依次为:盐荒地>改良地>牧草地>林地>农用地,该研究可为土默川平原盐渍化土壤的合理开发利用提供理论依据。

关键词: 土地利用类型;土壤剖面;盐碱指标;土默川平原

Abstract: The effects of five different land use types on physical and chemical properties of the saline-alkali soil in the Tumochuan plain,China,were analyzed by field soil sampling and laboratory experiment.Soluble salt content,composition of salt ions,and pH and alkalinity of soil profile were studied.The results showed that: soil salt ion composition and total salt content have obvious spatial distribution characteristics under different land use types.The total salt in the soil profile of pasture and forest land showed first an increase and then a decrease with increase in soil depth.Total salt in a wasteland and improved land soil profile decreased with increase in soil depth,and in farmland increased with soil depth.The distribution characteristics of soil pH,alkalinity and total alkalinity in the profile were basically the same in the five land use types.The degree of salinization and alkalinization declined in the order saline-alkali waste land > improved land > pastureland > forest land> agricultural land.The research results can provide a theoretical basis for the rational development and utilization in the Tumochuan plain.

Key words: Land use types;Soil profile;Saline-alkali index;Tumochuan plain

中图分类号: 

  • S154