LI Erhuan,HU Haibo,LU Xiaozhen,et al.Characteristics of Soil Salinity Profiles and Physical and Chemical Properties of Coastal Saline Soil in the Estuary of North Jiangsu[J].Research of Soil and Water Conservation,2016,23(04):116-119,127.
苏北滨海盐土区土壤盐分剖面特征及其理化特性
- Title:
- Characteristics of Soil Salinity Profiles and Physical and Chemical Properties of Coastal Saline Soil in the Estuary of North Jiangsu
- 分类号:
- S156.4
- 摘要:
- 以淮河入海口两侧河漫滩为研究对象，运用聚类分析和相关性分析等方法对土壤盐分剖面类型、土壤理化特性及其相关关系进行了研究。结果表明：研究区土壤盐分剖面类型具有明显区段性，距入海口近、中、远，土壤盐分剖面类型依次为表聚型、震荡型、平均型；土壤颗粒组成以粉粒和砂粒为主，黏粒含量极少，不同部位质地差异不大，表聚型土壤含盐量与土壤质地有较好的相关性，震荡型和平均型土壤含盐量与土壤质地的相关性差；研究区0—350 cm土体有机质均属低水平，震荡型盐分剖面土壤有机质与含盐量显著负相关（p < 0.05），表聚型和平均型盐分剖面土壤有机质与含盐量相关性差；土壤整体为弱碱性，部分为碱土。
- Abstract:
- Flood land soils in the estuary of Huai River were investigated for analysis of soil salinity profile types, the variation of the physical and chemical properties and the relation between them. The result showed that along with the distance far from the estuary, characteristics of soil salt content distribution in the soil profiles varied and fell into three types:surface accumulation profiles (SAP), oscillation profiles (OP) and equably distribution profiles (EDP). The soil particle composition is dominated by silt and sand, content of clay is less. Salt distribution of surface accumulation profiles (SAP) is significantly correlated to soil texture, but salt distribution of oscillation profiles (OP) and equably distribution profiles (EDP) are not negatively correlated with soil texture. Organicorganic matter in 0—350 cm soil depth in the study area is low. Salt distribution of oscillation profiles (OP) is negatively correlated with organic matter content, but salt distribution of surface accumulation profiles (SAP) and equably distribution profiles (EDP) are not significantly correlated with organic matter content. The soil in the study area is weak alkaline soil and the soil in partial area belongs to alkali soil.
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备注/Memo
收稿日期:2015-07-10;改回日期:2015-09-18。
基金项目:江苏高校优势学科建设工程资助项目（PAPD）；国家林业局长江三角洲城市森林生态系统定位研究资助项目（2001-5）；淮河入海水道二期工程盐碱土分布与水土保持方案研究项目（201305013）
作者简介:李二焕(1988-),女,河南宝丰人,硕士研究生,主要从事林业生态工程研究。E-mail:1326039936@qq.com
通讯作者:胡海波(1964-),男,江苏宝应人,教授,博士,博士生导师,主要从事水土保持与荒漠化防治研究。E-mail:huhb2000@aliyun.com