土壤氟化钠反应是指土壤与中性氟化钠溶液作用后,释放出羟基,使溶液pH上升的过程。40年代初,有人开始研究粘粒矿物的氟化钠反应,发现水铝英石与氟化钠溶液作用后,pH迅速上升,因而将氟化钠反应用作野外水铝英石的鉴定,并作为鉴定灰化淀积B层的辅助指标。后来研究表明,不仅水铝英石可产生氟化钠反应,三水铝石、无定形水合氧化铝和氧化铁及氧化硅等矿物也可产生氟化钠反应。从我国红壤和黄壤的研究来看,黄壤有较多的三水铝石和无定形铁铝氧化物,故可以推断黄壤具有比红壤较强的氟化钠反应。本试验的目的是探索浙江省红壤、黄壤的氟化钠反应特性,而为这两类土壤的划分提供一些依据资 Soil sodium fluoride reaction refers to the soil and neutral sodium fluoride solution, the release of hydroxyl, so that the pH of the solution process. In the early 40s, some people began to study the sodium fluoride reaction of clay mineral, and found that the pH rises rapidly after the reaction of the allophane with the sodium fluoride solution, so the sodium fluoride reaction is used as the identification of the field allophane and As a secondary indicator to identify ashed layer B deposition. Later studies have shown that not only the production of sodium aluminum albite reaction of sodium fluoride, gibbsite, amorphous hydrated alumina and iron oxide and silicon oxide and other minerals can also produce sodium fluoride reaction. From the study of red soil and yellow soil in our country, there are more gibbsite and amorphous iron-aluminum oxide in yellow soil, so it can be inferred that yellow soil has stronger sodium fluoride reaction than red soil. The purpose of this experiment is to explore the red soil of Zhejiang Province, yellow soil sodium fluoride reaction characteristics, and to provide some basis for the division of these two types of soil