论文部分内容阅读
一、研究氧化物的意义及其概况 土壤无机胶体是土壤中较为活泼的物质之一,其矿物组成分,除层状硅铝酸盐外,还有铁、锰、铝、硅等氧化物及其水合物和水铝英石类等。层间羟基铝以及层状粘土矿物边缘裸露的铝醇(Aluminol,Al-OH)、铁醇(Ferrol,Fe-OH)和硅脘醇(Silanol,Si-OH),因其化学行为与氧化物相似,且有发生上的联系,亦作为氧化物。此外,与腐殖质结合的铁铝亦同样看待。 在大多数土壤中,氧化物胶体是粘粒的次要组分,但其作用包括对层状硅铝酸盐的影响,都是不容忽视的。另外,与层状硅铝酸盐比较,氧化物的活性较大,易受环境变化的影响而变。显然,这是人们能改造土壤的根据之一。
First, the study of the significance of oxide and its overview Soil inorganic colloids is one of the more active substances in the soil, its mineral composition, in addition to layered aluminosilicate, there are iron, manganese, aluminum, silicon and other oxides and Its hydrates and all-aluminum-type and so on. Al (OH) 2, Ferrol (Fe-OH) and Silanol (Si-OH) were exposed by the interlayer aluminum hydroxide and the edge of the layered clay minerals. Because of their chemical behavior, Similar, and have occurred in contact, but also as an oxide. In addition, iron and aluminum combined with humus are also considered. In most soils, oxide colloids are a secondary component of clay, but their effects, including their effects on layered aluminosilicates, are not negligible. In addition, oxides are more active than layered aluminosilicates and are susceptible to changes in the environment. Obviously, this is one of the bases on which people can rehabilitate the soil.