thionic gleysols

Forms of acidity in acid sulfate soils and their determinations;

酸性硫酸盐土的酸度类型及其测定方法

Acid sulfate soils (ASS) are widely distributed along the coastal areas in tropical and subtropical world.

酸性硫酸盐土广泛分布于热带亚热带滨海地区，当其中的硫铁矿物质与空气接触或直接暴露地表时会发生氧化而形成强烈酸害，从而导致土壤、水、大气和区域生态系统的退化，最终对动植物生长和人类的健康产生较大影响而成为全球性的热带亚热带滨海环境问题。

Conventional methods were used to determine the physi-chemical properties of the saline soil (acide sulfate soil) of Mangroves at Dongzhaigang, Hainan Island in order to provide some information for amelioration and sustainable use of acid sulfate soil.

采用常规方法研究了海南岛东寨港红树林盐土(酸性硫酸盐土)的理化性状。

Succession of sulfur forms in acid sulfate soils;

酸性硫酸盐土中的硫及其形态演变探讨

Aluminum forms in Acid Sulfate Soils.;

酸性硫酸盐土中铝的形态

In order to understand the relations between land use types and enviro nmental risks of acid sulfate soils (ASS), followed to provide scientific basis for a wise use and effective management of the ASS, the situation of acid hazard and Al toxicity in the ASS were studied through acid and Al forms test and synt hesis.

研究并比较了不同利用方式下酸性硫酸盐土酸形态和铝形态的结构特征,分析了硫形态与酸形态、酸形态与铝形态之间的相关性。

Effect of phosphate rocks on nutrient availability of rice on acid sulphate soils;

酸性硫酸盐土壤上施用磷矿粉对水稻养分有效性的影响

Four profiles of acid sulphate soils and 20 Samplings were taken according to different soiltypes and land use patterns in Taishan city, Guangdong province.

选取了4个酸性硫酸盐土剖面共20个土壤样品进行了硫的分级测定和土壤pH值的测定，对土壤中硫的形态、含量及其剖面分布规律，以及它们对土壤酸性的贡献进行了探讨。