WANG Ding,ZHOU Mei,ZHAO Pengwu,et al.Responses of Soil Chemical Properties in Larix gmelinii Forest Under Different Forest Types After Fire[J].Northern Horticulture,2019,43(05):84-89.[doi:10.11937/bfyy.20182574]
重度火干扰对不同林型落叶松林土壤化学性质的影响
- Title:
- Responses of Soil Chemical Properties in Larix gmelinii Forest Under Different Forest Types After Fire
- 文献标志码:
- A
- 摘要:
- 以内蒙古大兴安岭中部兴安落叶松林重度火烧迹地为研究对象，并选择附近未火烧林地作为对照区（CK），分析比较了火干扰后不同林型（草类-兴安落叶松林、杜香-兴安落叶松林、杜鹃-兴安落叶松林）林地土壤主要养分指标13年后的变化趋势，以期为不同类型火烧迹地恢复提供理论依据。结果表明：3种不同林型兴安落叶松林火烧迹地土壤pH均比CK有所增加，而土壤有机质含量均比CK有所降低。3种不同林型兴安落叶松林火烧迹地土壤全N和全K含量均比CK有所降低（P<0.05）。3种不同林型林地土壤全P含量与CK相比无显著变化（P>0.05）。3种不同林型兴安落叶松林地土壤速效N、速效P、速效K含量较对照相比均有不同程度的增加（P<0.05）。土壤速效N含量呈现出草类>杜香>杜鹃>CK的规律。土壤速效P含量呈现出杜鹃>草类>杜香>CK的规律。土壤速效K含量呈现出草类>杜香>杜鹃>CK的规律。
- Abstract:
- In this study,Larix gmelinii forest burned areas were experienced in different forest types.We investigated the chemical properties of forest soil in an unburned control and burned sites dating 13-year-post-fire in the Great Xing′an Mountains of Northeastern China.This study aimed to provide theoretical basis for the recovery of different types of burned sites.The results showed that the soil pH was higher under three different forest types than in the control while the SOC take the opposite trend.The soil total N and total K were significantly lower under three different forest types than in the control.Fire disturbance has no significant effect on total soil P compared with the control.The soil total P in the different burned sites was basically kept within a range compared with the control.The soil available N,available P and available K were significantly higher under three different forest types than in the control.The soil available N showed a ranking of S-G>S-L>S-R >unburned control.The soil available P showed a ranking of S-R>S-G>S-L>unburned control.The soil available K showed a ranking of S-G>S-L>S-R>unburned control.
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备注/Memo
第一作者简介：王鼎（1989-），男，内蒙古巴彦淖尔人，硕士，研究方向为森林生态学。E-mail：15147124612@163.com.责任作者：赵鹏武（1981-），男，内蒙古赤峰人，硕士，讲师，现主要从事森林生态学等研究工作。E-mail：zhaopengwu12@163.com.基金项目：国家自然科学基金资助项目（41563006）。收稿日期：2018-09-17