温孟滩移民安置区土壤颗粒分布特征的研究  

Study on Soil Particle Distuibution in Wenmengtan Resettlement Area

作　　者：白由路[1,2,3] 李云霞[1,2,3] 李有田 刘月才[1,2,3] 赵天义 张建广[1,2,3] 

机构地区：[1]河南农业大学 [2]河南黄河河务局 [3]郑州市化肥厂

出　　处：《河南农业大学学报》1998年第2期122-125,共4页Journal of Henan Agricultural University

基　　金：黄河小浪底水利枢纽工程资助

摘　　要：用吸管法对黄河小浪底水利枢纽工程温孟滩移民安置区１５５个土壤样品进行了分析。结果表明，该区土壤以壤土居多，约占７５％；在不同的质地类型中，其主导颗粒明显不同，砂土中以砂粒为主，壤土以粗粉粒为主，粘土中细粉粒和粘粒占绝对优势；在所有质地类型中，中粉粒含量都较少，且随质地变化不明显；土壤质地类型对土壤中细粉粒和粘粒总量的依赖性较强；在土壤颗粒分布中，土壤物理性粘粒含量在１０％左右时，土壤颗粒特征发生较大的变化，因此，温孟滩移民安置区土壤改良指标的下限以土壤物理性粘粒含量为１０％时比较适宜。155 soil samples from Wenmengtan resettlement of the Yellow River Multiple Purpose Dame Protect were analysed by pipetel methhod.The results showed that about 75% of the soil texture was loam;The main particles differed greatly in different soil textures,among which, sand,coarse silt were the main compositions in sand and loam,clay was mainly made up of fine silt and clay particles. Medium-sized silts were rare in all textures and there was no clear variation with textures.The soil texture depended greatly on fine silt and clay;In soil grain distribution,the soil particle property took great change when soil physical clay took up 10% .Therefore,10% of physical clay was suitable for lower limit of soil improvement stardard.

关 键 词：温孟滩 土壤颗粒 改土 土壤质地 分布特征 

分 类 号：S152.32[农业科学—土壤学]