原文由 simple1010 发表:
各位帮帮忙,有机质、腐殖质、腐殖酸之间有什么区别啊?
为什么很多检测方法没有把这几种物质分开呢?检测方法差不多,结果也一致,这样为什么要叫做三种名称呢?
拜托帮忙解释一下!谢谢!
The term humus is used by some soil scientists synonymously with soil organic matter, that is to denote all organic material in the soil, including humic substances. Contemporary, the term humus is frequently used to represent only the humic substances.。
Humic acid is one of the major components of humic substances (or Natural Organic Matter (NOM)) which are dark brown and major constituents of soil organic matter humus that contributes to soil chemical and physical quality and are also precursors of some fossil fuels. They can also be found in peat, coal, many upland streams and ocean water.
Humus:Nonliving, finely divided organic matter in soil, derived from microbial decomposition of plant and animal substances. Ranging in colour from brown to black, it consists primarily of carbon but also contains nitrogen and smaller amounts of phosphorus and sulfur. As it decomposes, its components are changed into forms usable by plants. Humus is classified according to how well it is incorporated into the mineral soil, the types of organisms involved in its decomposition, and the vegetation from which it is derived. It is valued by farmers and gardeners because it provides nutrients essential for plant growth, increases the soil's water absorption, and improves soil workability.
从这些英文定义上来看,这三种名字所包含的物质从某种意义上讲是相同的。
不好意思,没有找到中文的定义