地理科学 ›› 1991, Vol. 11 ›› Issue (1): 30-41,99.doi: 10.13249/j.cnki.sgs.1991.01.30

• 论文 • 上一篇    下一篇

我国泥炭基本性质的区域分异

马学慧, 蔡省垣, 王荣芬   

  1. 中国科学院长春地理研究所
  • 出版日期:1991-01-20 发布日期:1991-01-20
  • 基金资助:
    国家自然科学基金资助课题

REGIONAL DIFFERENTIATION OF BASIC PROPERTIES OF PEAT IN CHINA

Ma Xuehui, Cai Xingyuan, Wang Rongfen   

  1. Changchun Institute of Geography, Academia Sinica
  • Online:1991-01-20 Published:1991-01-20

摘要: 本文根据近年来对泥炭地实际调查和取样,在大量化验分析数据的基础上,采用数理统计方法,对我国泥炭基本性质进行分区研究和对比,指出泥炭性质与第四纪以来区域环境和变迁有着密切关系。

Abstract: According to the investigation in recent years,the proved peat reserves are 5 billion tons.But there are still some peatlands which have not been surveyed and found.It is estimated that peat reserves will be 6-8 billion tons.China’s peatlands are mainly distributed in mountains and plateaus,especially in the Da Hinggan Mountain,the Xiao Hinggan Mountain,and the Changbai Mountain in northeast,the southern part of the Qinghai-Xizang Plateau,the western part of the Yunnan-Guizhou Plateau,having abundant peat resources.Besides,in the Sanjiang Plain,along east and south coasts there are also some peatlands.The basic properties of peat in main regions of China are as follows.In northeast mountains,there are various types of peat,the contents of organic matter and humic acid are the highest(65-70%)and 35%-40%,respectively),pH value is 5-6,decomposition degree is low (below 25%).While in plains and coasts,peat type is single,the contents of organic matter and humic acid are relatively low(50% and 20%,respectively),but decomposition degree is high.In arid zones,the contents of organic matter and humic acid of peat are the lowest(30%-50% and 15%-20%,respectively),pH value is neutral or slightly alkaline.The differences of peat properties in a region are closely related to the change of regional environment since the Holocene.Because peat properties vary with regions,the exploitation and utilization of peat and peatlands vary with regions.