[1]闫志刚,王鼎*,周梅,等. 不同程度火干扰对大兴安岭冻土区土壤碳组分的影响[J].西北林学院学报,2022,37(5):141-145.[doi:10.3969/j.issn.1001-7461.2022.05.20]
　YAN Zhi-gang,WANG Ding,ZHOU Mei,et al. Effects of Different Degrees of Fire Disturbance on Soil Carbon Composition in the Greater Khingan Mountains Permafrost Region[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(5):141-145.[doi:10.3969/j.issn.1001-7461.2022.05.20]
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 不同程度火干扰对大兴安岭冻土区土壤碳组分的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第5期
页码:
141-145
栏目:
出版日期:
2022-09-30

文章信息/Info

Title:
 Effects of Different Degrees of Fire Disturbance on Soil Carbon Composition in the Greater Khingan Mountains Permafrost Region
文章编号:
1001-7461(2022)05-0141-05
作者:
 闫志刚1; 王鼎2*; 周梅3; 赵鹏武3; 田金龙4; 舒定玺4
 (1.内蒙古大兴安岭航空护林局，内蒙古 呼伦贝尔 021000；2.甘肃农业大学 资源与环境学院，甘肃 兰州 730070；3.内蒙古农业大学 林学院，内蒙古 呼和浩特 010000；4.内蒙古毕拉河国家级自然保护区，内蒙古 呼伦贝尔 165479)
Author(s):
 YAN Zhi-gang1; WANG Ding2; ZHOU Mei3; ZHAO Peng-wu3; TIAN Jin-long4; SHU Ding-xi4
 (1.Inner Mongolia Daxing’anling Aviation Forest Protection Bureau,Hulunbeier 021000,Inner Mongolia,China; 2.Gansu Agricultural University,Lanzhou 730070,Gansu,China; 3.College of Forestry,Inner Mongolia Agricultural University,Hohhot 010000,Inner Mongolia,China; 4.Bila River National Nature Reserve,Hulunbeier 165479,Inner Mongolia,China)
关键词:
 ; 火烧迹地; 冻土区; 兴安落叶松; 土壤有机碳; 易氧化有机碳
Keywords:
 ; burned area;  permafrost region;  Larix gmelinii;  soil organic carbon;  readily oxidized carbon
分类号:
S762.8
DOI:
10.3969/j.issn.1001-7461.2022.05.20
文献标志码:
A
摘要:
 以2017毕拉河林业局（岛状冻土区）与2018汗马保护区（永久冻土区）火烧迹地为对象，通过对比不同火烧程度（轻度火烧、中度火烧、重度火烧、未火烧对照）土壤有机碳、易氧化有机碳含量(质量分数，下同)的变化特征，揭示林火干扰对冻土区土壤有机碳组分的影响。结果表明：1）在毕拉河岛状冻土区火干扰会显著增加0~10 cm土壤层有机碳含量（P＜0.05）；在汗马永久冻土区轻度和中度火干扰会显著增加0~20 cm土壤层有机碳含量（P＜0.05）。2）在大兴安岭冻土区土壤ROC（有机碳）含量与SOC（易氧化有机碳）含量之间存在极显著正相关关系（P＜0.01）。3）在毕拉河岛状冻土区火干扰会降低0~20 cm土壤层ROC/SOC的值，且火烧程度越小ROC/SOC的值越小。在汗马永久冻土区轻度火干扰会增加0~30 cm土壤层ROC/SOC的值，而中度和重度火干扰会降低0~20 cm土壤层ROC/SOC的值。
Abstract:
 In this study,burned areas managed under the Bila River Forest Bureau (segregated frozen ground) in 2017 and Hanma National Nature Reserve (permafrost region) in 2018 were selected as research objects.By comparing the variation characteristics of soil organic carbon (SOC) and readily oxidized carbon (ROC) in different burning levels (light burning,moderate burning,severe burning and non-burning,control),to reveal the effects of forest fire interference on soil organic carbon components of frozen soil area.The conclusions were as follows.1) In the segregated frozen ground of the Bila River,fire interference significantly increased the organic carbon content in 0-10 cm soil layer (P<0.05).In Hanma permafrost area,light and moderate fire interference significantly increased the organic carbon content in the soil layer of 0-20 cm (P<0.05).2) There was a significant positive correlation between soil ROC content and SOC content (P<0.01) in the Greater Khingan Mountains of permafrost region.3) In the segregated frozen ground of the Bila River,fire interference can reduce the ROC/SOC ratio in the 0-20 cm soil layer,and the lower the fire degree,the lower the ROC/SOC ratio.In the Hanma permafrost region,light fire interference increased the ROC/SOC ratio in the 0-30 cm soil layer,while moderate and severe fire interference decreased the ROC/SOC ratio in the 0-20 cm soil layer.

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备注/Memo

备注/Memo:
 收稿日期：2021-08-16修回日期：2021-11-23
基金项目：内蒙古自治区自然科学基金（2020MS03049）；国家自然科学基金（41563006）；甘肃省青年科技基金（21JR7RA852）；甘肃省农业大学科研启动基金（GAU-KYQD-2020-25）。
第一作者：闫志刚，高级工程师。研究方向：生态学。E-mail：yzg1567@126.com
*通信作者：王鼎，讲师。研究方向：土壤学。E-mail：15147124612@163.com
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