泥炭腐殖化度记录的古气候信息及其在天山中部的应用  

Paleoclimatic information recorded by peat humification degree and its application in the central Tianshan Mountains

作　　者：延澳 王江永 刘旭东 白占魁 Yan Ao;Wang Jiangyong;Liu Xudong;Bai Zhankui(College of Geography and Remote Sensing Science,Xinjiang University,Urumqi 830017,Xinjiang,P.R.China;Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention,Institute of Marine Sciences,Shantou University,Shantou 515000,Guangdong,P.R.China)

机构地区：[1]新疆大学地理与遥感科学学院,新疆乌鲁木齐830017 [2]汕头大学海洋科学研究院海洋灾害预警与防护广东省重点实验室,广东汕头515000

出　　处：《湿地科学》2025年第1期59-71,共13页Wetland Science

基　　金：新疆维吾尔自治区自然科学基金(2022D01C658);新疆维吾尔自治区人社厅天池英才人才引进项目资助。

摘　　要：泥炭腐殖化度是良好的古气候代用指标,但其与古气候的关系尚存在争议。本文对不同区域泥炭腐殖化度的相关研究进行综述,揭示了泥炭腐殖化度与古气候之间的关系及其在亚洲内陆干旱核心区天山中部的应用。首先,在国外的古气候研究中,泥炭腐殖化度主要用来指示地表湿度,而国内研究主要使用腐殖化度指示温湿度的组合;其次,影响泥炭腐殖化度的关键因素是植物残体数量和微生物的分解能力,这需要结合当地地理环境具体分析;最后,尽管泥炭腐殖化度与古气候的关系仍存在争议,但其记录的古气候信息具有较好的一致性,不同地区的泥炭腐殖化度对同一气候变化过程的响应存在一定差异。此外,本文通过实验揭示了亚洲内陆干旱核心区天山中部泥炭受到地形与水热组合的影响,较高的腐殖化度与较冷的气候相关,而较低的腐殖化度指示较暖的气候,同时腐殖化度与绿洲湿地的演化密切相关。The humification degree of peat is a useful proxy index for paleoclimate,although the precise nature of its relationship with paleoclimate remains a topic of debate.This paper presents a comparative analysis of existing studies on humification degree of peat across different regions,with the aim of elucidating the relationship between peat humification degree and paleoclimate,as well as its potential applications in the central Tianshan Mountains,a region of particular interest due to its status as the arid core area of inland Asian.Firstly,in the context of foreign paleoclimate studies,peat humification degree is primarily employed to indicate surface humidity,while in domestic studies,the humification degree is mainly used to indicate the combination of temperature and humidity.Secondly,the key factors influencing peat humification degree are the quantity of plant residues and the microbial decomposition ability,which need to be specifically analyzed in combination with the local geographical environment.Finally,although the relationship between peat humification degree and paleoclimate is still a matter of debate,the recorded paleoclimate information has good consistency,and the response of peat humification degree to the same climate change process varies in different regions.In addition,the experimental study demonstrates that peat in the central Tianshan Mountains is affected by the combination of terrain and hydrothermal conditions.Higher humification degree is associated with the colder climate,while lower humification degree indicate warmer climates,and peat humification degree is found to be intimately linked to the evolution of oasis wetlands.

关 键 词：泥炭 腐殖化度 古气候 亚洲内陆干旱核心区天山中部 

分 类 号：P92[天文地球—自然地理学] X144[环境科学与工程—环境科学]