地理科学 ›› 2005, Vol. 25 ›› Issue (2): 177-182.doi: 10.13249/j.cnki.sgs.2005.02.177

• 论文 • 上一篇    下一篇

东北三江平原全新世火演化及其与植被和气候的关系

李小强1, 赵宏丽1, 闫敏华2, 王升忠3   

  1. 1. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室, 陕西, 西安, 710075;
    2. 中国科学院东北地理与农业生态研究所, 吉林, 长春, 130012;
    3. 东北师范大学城市与环境学院, 吉林, 长春, 130024
  • 收稿日期:2004-04-16 修回日期:2004-10-18 出版日期:2005-03-20 发布日期:2005-03-20
  • 基金资助:
    国家自然科学基金(40172064,40342077);中国科学院钻探工程项目(KZCX2-SW-118);创新群体基金(NSFC40121303);重大基础研究前期研究专项(2003CCC01500)的支持。

Fire variations and Relationship among Fire and Vegetation and Climate during Holocene at Sanjiang Plain,Northeast China

LI Xiao-Qiang1, ZHAO Hong-Li1, YAN Min-Hua2, WANG Sheng-Zhong3   

  1. 1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, Shaanxi 710075;
    2. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin 130012;
    3. urban and Environmental School of Northeast Normal University, Changchun, Jilin 130010
  • Received:2004-04-16 Revised:2004-10-18 Online:2005-03-20 Published:2005-03-20

摘要: 通过勤得利泥炭剖面碳屑、花粉记录,重建东北三江平原地区全新世火演化与植被变化的历史;研究火演化与植被、气候的关系;探讨人类火活动及其环境效应的信息。三江平原最近9700aB.P.以来,疏林草原植被时期(9200-8500aB.P.)和疏林植被时期(9700-9200aB.P.)对应了暖干气候阶段,碳屑浓度出现峰值,而湿润时期的碳屑浓度均很低。显示在暖干气候阶段,火灾发生的频次高、强度大;湿润或相对湿润阶段。火灾力度相对较小或频次较低。同时,自然植被状况和植物类型同样制约了天然火发生的频次和强度。20世纪50年代三江平原开发与垦荒对火演化和环境产生重要影响。

Abstract: The records of charcoal and pollen from peat section at Qindeli, NortheastChina help us to reconstruct the fire variation and the vegetation history in the Holocene at Sanjiang Plain and to study their relationship among fire, vegetation and climate.The reconstruction of fire history also discusses the human activity of fire and the impact on environment.Two peak values of charcoal concentration appeared in the two periods of spares forest and grassland (9 200-8 500 a B.P.) and spares forest (9 700-9 200 a B.P.) corresponding to two climate epochs of warm-dry and relatively warm-arid respectively.In the wet period the charcoal concentration shows the low values.The frequency and intensity of fire are high in the dry period and low in the wet period.However, the characteristic of vegetation and the types of plant also restrict the frequency and intensity of fire in the Holocene at Sanjiang Plain.In the mean time, the exploitation to Sanjiang Plain influenced the fire variation and environment greatly after the 1950s.

中图分类号: 

  • P467