近10年来我国泥炭地学的研究进展

我国泥炭地学经过30余年的初创时期,到1990年基本完成了创建阶段。20世纪90年代以来,泥炭地学处于发展时期,在泥炭沼泽生态系统、泥炭特性与物质组成、泥炭形成环境与聚煤作用对比、泥炭地温室气体与全球变化、泥炭沼泽水文与微地貌、泥炭形成机制与成炭期、泥炭地层以及以泥炭为信息载体的环境变迁等方面的研究日益接近世界先进水平,某些研究甚至处于世界领先地位;与国际交往更加频繁;在泥炭应用和研究方法等方面也取得了显著成就。但泥炭地恢复等方面研究较加拿大等先进国家还有一定距离。总结了我国泥炭地学近10年的研究历史和现状,并对未来研究做了展望。

ADVANCE IN CHINESE PEAT GEOSCIENCE IN RECENT TEN YEARS

Peat geoscience is a discipline to study the rules of formation and evolution of peatlands, wise use and protection of peat resource. It has had a history of more than 40 years since it is initiated in 1960, and has finished its formation stage as a discipline in 1990, and is in the progress period since 1990 in China. The area of peatland is 1 040 000 hm² and the reserves of peat are 124.8×10⁹ t according to the standard that the water content of peat is 40% in wind dry weight. The peat is mainly distributed in the Northeast and Southwest of China. The systematical research on exchange of nutrients between the plant and peat in the oligotrophic swamp, eutrophic swamp has been made. The reclaimed oligotrophic swamp in the Northeast of China has showed the swamp reclaimed for 5 years have the more productivity than that reclaimed for 3 years and over 10 years. The properties and components of peat in the Northeast of China are also researched and made a contrast with that in Belarus, and the results indicate the differences of properties and components of peat are caused by the different geographical environment. The forming environment comparison between peat and coal, the greenhouse gas in the peatland, hydrology and microtopography in the peatland, the mechanism and periods of forming peat, peat stratum and research on the environmental changes taking peat as carrier of information have also been studied in the recent 10 years. A lot of work on the peatland protection has been developed. The exchange and cooperation on the peat and peatland have made with Belarus, Japan, Malaysia, Canada, USA, Sweden, Ireland and some other countries. The study on peatland restoration is just now made and has bright prospect. The peat has been utilized on the industry, agriculture, environmental protection, horticulture and so on. RS, GIS and GPS are used to reconnaissance, oriente peat resources. Routine ¹⁴C, AMS ¹⁴C, pollen analysis, C, H, O isotope analysis are applied to the research of environmental evolution. The methods in the lithology, organic geochemistry are also used to peat geoscience. At last the prospective studies in the future are put forward in this paper.