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林业资源管理 ›› 2014›› Issue (6): 110-114.doi: 10.13466/j.cnki.lyzygl.2014.06.024

• 科学研究 • 上一篇    下一篇

不同火烧强度对兴安落叶松林土壤化学性质的影响

秦可珍1, 贺婷1, 包翔1, 陈翔2, 周梅1, 赵鹏武1   

  1. 1.内蒙古农业大学 生态环境学院,呼和浩特 010019;
    2.内蒙古和信园蒙草抗旱绿化股份有限公司,呼和浩特 010010
  • 收稿日期:2014-09-17 修回日期:2014-10-08 出版日期:2014-12-28 发布日期:2020-11-23
  • 通讯作者: 周梅(1960-),女,内蒙古呼和浩特人,教授,博导,主要从事森林生态学方面的研究。Email:dxalzhoumei@yahoo.com.cn
  • 作者简介:秦可珍(1989-),男,山东蓬莱人,在读硕士,主要从事森林生态学方面的研究。Email:qinkz.1989@163.com
  • 基金资助:
    内蒙古自治区科技计划项目(20101914,20130435)

Effects of Different Fire Intensities on Soil Chemical Properties of Larix gmelini Forest

QIN Kezhen1, HE Ting1, BAO Xiang1, CHEN Xiang2, ZHOU Mei1, ZHAO Pengwu1   

  1. 1. College of Ecology and Environment science Inner Mongolia Agricultural University,Hohhot 010019,China;
    2. Inner Mongolia Hexinyuan Drought Resistant Grass Afforestation Company Limited,Hohhot 010010,China
  • Received:2014-09-17 Revised:2014-10-08 Online:2014-12-28 Published:2020-11-23

摘要: 以内蒙古大兴安岭北部林区的火烧迹地为研究区,对不同火烧年份(2003年和2012年)和不同火烧程度(轻度和重度)火烧迹地土壤化学性质进行研究。结果表明:火烧后1年,相较于对照样地,轻度火烧后,土壤有机碳和速效磷含量显著增加,pH值、全磷、碱解氮含量增加,但差异不显著;土壤全氮含量显著降低,全钾和速效钾含量降低,但差异性不显著。重度火烧后,pH值、碱解氮和速效磷含量显著增加,有机碳、全氮和速效钾含量显著降低,全磷和全钾含量降低,但差异不显著。火烧后10年,相较于对照样地,除重度火烧后土壤有机碳和全氮含量显著降低,其他土壤化学性质指标火烧后也不同程度降低,但不显著。

关键词: 林火, 火烧强度, 土壤化学性质, 兴安落叶松林

Abstract: Taking the burnt area in the northern forest area in Inner Mongolia Greater Khingan Range as the study area,soil chemical properties of the different fire years (2003 and 2012)and fire severity (mild and severe)as the study objects.The results show that in 1 year after the fire,compared with the control sample plots and mild fire severity,organic carbon and available phosphorus content in soil increased significantly,pH value,total phosphorus,available nitrogen content increased,but the difference was not significant;soil total nitrogen content decreased significantly,the total potassium and available potassium content decreased too,but the difference is not significant.After severe burn,pH value,available nitrogen and available phosphorus content increased significantly,organic carbon,total nitrogen and available potassium content reduced significantly,the total phosphorus and total potassium content reduced,but the difference was not significant.In 10 years after the fire,compared to the control plots,only organic carbon and total nitrogen content in severe burned area decreased significantly,other indicators of soil chemical properties also decreased,but not significantly.

Key words: forest fire, fire intensity, soil chemical properties, Larix gmelini forest

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