河南省砂姜黑土土壤剖面特征及利用改良建议  

Soil Profile Characteristics and Improvement Suggestions of Lime Concretion Black Soil in Henan Province

作　　者：刘海艳[1] 李跃鹏[1] 

机构地区：[1]华北水利水电学院,河南郑州450045

出　　处：《华北水利水电学院学报》2013年第3期78-81,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：砂姜黑土是河南省主要的中低产田类型,共划分为2个亚类,8个土属,分析了各土属的分布范围及土壤剖面特征.河南省砂姜黑土质地比较黏重,土壤结构以块状和棱块状为主,表层根系较多;用稀HCl溶液(100 mol/L)检验土壤有无石灰反应,用比色法测定土壤pH值,发现砂姜黑土有无石灰反应及pH值大小与其亚类的划分有关.针对河南省砂姜黑土的土壤剖面特征,通过深施有机肥、广种绿肥作物、合理耕作及客土法等途径对砂姜黑土进行改良.The lime concretion black soil is the main type of medium and low-yield fields, which is divided into two subclasses and eight soil genuses. In the paper, soil profile characteristics and distribution ranges of each soil genus are analyzed. The texture of lime concretion black soil is heavy clay, and the soil structure is mainly massive and edges massive, and there are more roots in upper soil layer. The dilute HC1 solution （ 100 mol/L） and the colorimetry is used to determine respectively lime reaction occurred or not in the soil and pH value of the soil. It is found that lime reaction occurs or not and pH value are related to the soil subclasses. According to the profile characteristics of lime concretion black soil in Henan province, some ways are used to improve lime concretion black soil so as to raise crop yields, such as deep placing organic fertilizers, widely planting green manure crops, reasonable farming, soil dressing method, and so on.

关 键 词：砂姜黑土 剖面特征 分布范围 改良建议 

分 类 号：S152.2[农业科学—土壤学]