地理科学 ›› 1988, Vol. 8 ›› Issue (2): 189-195,200.doi: 10.13249/j.cnki.sgs.1988.02.189

• 问题讨论 • 上一篇    下一篇

更新山泥炭的理化性质及其变化规律

张伟才   

  1. 煤炭科学院地质勘探分院 西安
  • 出版日期:1988-03-20 发布日期:1988-03-20

PHYSICAL AND CHEMICAL PROPERTIES OF GENGXINSHAN PEAT AND ITS CHANGING LAW

Zhang Weicai   

  1. Institute of Geology and Exploration, CCMRI, Xian
  • Online:1988-03-20 Published:1988-03-20

摘要: 更新山泥炭沼泽经历了由低位—中位—高位沼泽的三个发育阶段,并相应形成了低位木本-草本泥炭、中位木本-草本-藓类混炭和高位木本-藓类泥炭。不同类型泥炭,其理化性质有明显的差异。导致这些差异的原因,除了沼泽发育不同阶段的气候环境、物质来源和沼泽植物组合不同外,还与泥炭的有机质含量多寡、植物残体的分解程度等有关。

Abstract: Gengxinshan peat bog has been passing through three periods from eutrophic, mesotrophic to oligotrophic bog, and has correspondingly formed eutrophic wood-herb peat, mesotrophic wood-hreb-moss peat and oligotrophic wood-moss peat. Different types of peat have obviously different physical and chemical properties. Some properties have certain changing law. In the developing process from eutrophic to oligotrophic peat,decomposition degree,pH value, ash content(Ag), calorific value(QDTr), total sulphur content(SQg), phosphorous pentoxide content(P2O5), and humic acid content are all evidently decreased; bnt water content(Wf),volatile matter yield(Vr) and organic matter content tend to increasing; contents of SiO2, Al2O3 and TiO2. in ash are apparently decreased. The reasons resulting in the differences of these properties are related to not only the different climatic environments, nutrient sources and various plant composition in different mire developing stages, but also the organic matter content of peat and the decomposition degree of plant residues and so on.