论文部分内容阅读
从安徽省各地采集的251个土壤样品有效硅平均含量为155.7±8.5ppm,其中53.8%土样含量低于100ppm,霍邱、合肥至芜湖一线以南以西地区有效硅含量低,以东以北地区含量高。主要土类土壤有效硅含量,砂姜黑土>潮土>石灰岩土>黄棕壤>水稻土>粗骨土>红壤>紫色土。不同母质土壤有效硅含量,黄土性古河湖相沉积物>近代黄泛>石灰岩>湖积物>下蜀黄土>河流冲击物>紫色岩>第四纪红土>花岗岩>泥质岩类土壤。土壤pH与有效硅含量之间呈正相关,酸性土壤缺硅的可能性较大。
The effective silicon content of 251 soil samples collected from all over Anhui Province was 155.7 ± 8.5ppm, of which 53.8% soil samples were less than 100ppm. The effective silicon contents of Huoqiu and Hefei-west of Wuhu were lower than west, High in area. Soil available silicon content of major soil types, Shajiang black soil> Chao soil> Limestone soil> Yellow brown soil> Paddy soil> Rough soil> Red soil> Purple soil. Available silicon content in different parent materials, Loess-type Furu-lacustrine sediments> Modern Yellow River flood> Limestone> Lake sediment> Xiashu loess> River impact> Purple rock> Quaternary laterite> Granite> Argillaceous soil. There is a positive correlation between soil pH and available silicon content, and acid soil is more likely to be deficient in silicon.