| 中烈度火干扰后喀纳斯泰加林火成演替群落的稳定性 |
| |
| 引用本文： | 李清云,潘存德,余戈壁,李贵华.中烈度火干扰后喀纳斯泰加林火成演替群落的稳定性[J].新疆农业科学,2019,56(11):2054-2061. |
| |
| 作者姓名： | 李清云 潘存德 余戈壁 李贵华 |
| |
| 作者单位： | 1.新疆农业大学林学与园艺学院/新疆教育厅干旱区林业生态与产业技术重点实验室,乌鲁木齐 830052; 2.喀纳斯国家自然保护区,新疆布尔津 836600; 3.新疆林业和草原局,乌鲁木齐 830000 |
| |
| 基金项目： | 国家自然科学基金“喀纳斯泰加林火成演替草本层与林冠层关系研究”(31570634);自治区财政林业科技项目“新疆山地森林更新演替与可持续经营研究”(新林科字〔2016〕599号-30) |
| |
| 摘 要： | 【目的】 分析中烈度火干扰后,不同火后时间喀纳斯泰加林群落在火成演替过程中的稳定性状态,加深对其火干扰后群落演替和恢复过程的科学认识。【方法】 运用采用数学模型改进的Gordon稳定性测度方法,计算并判定中烈度火干扰后不同火后时间喀纳斯泰加林通过火成演替其群落所达到的稳定性状态。【结果】 受到中烈度火干扰后,随着火后时间的增加和森林群落的持续恢复,喀纳斯泰加林火成演替群落的稳定性由低逐渐升高,并在火后60 a达到相对持续稳定。【结论】 喀纳斯泰加林群落的稳定性受火干扰的深刻影响,在中烈度火干扰后,大约需要60 a群落才能通过演替恢复到相对持续稳定的状态。中烈度火干扰后森林群落达到相对稳定状态的演替恢复时间为通过计划火干扰恢复退化泰加林提供参考。
|
| 关 键 词： | 火干扰 火烈度 北方森林 火成演替 相对频度 |
| 收稿时间： | 2019-08-02 |
The Community Stability along the Pyrogenic Succession after Severe Fires in Kanas Taiga |
| |
| LI Qing-yun,PAN Cun-de,YU Ge-bi,LI Gui-hua.The Community Stability along the Pyrogenic Succession after Severe Fires in Kanas Taiga[J].Xinjiang Agricultural Sciences,2019,56(11):2054-2061. |
| |
| Authors: | LI Qing-yun PAN Cun-de YU Ge-bi LI Gui-hua |
| |
| Institution: | 1.Key Laboratory of Forestry Ecology and Industry Technology in Arid Region, Education Department of Xinjiang / Collage of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052, China; 2.Kanas National Nature Reserves, Buerjin Xinjiang 836600; 3.The Forestry Department of Xinjiang Uygur Autonomous Region, Urumqi 830000, China |
| |
| Abstract: | 【Objective】 To analyze the stability of the community stability along the pyrogenic succession in Kanas Taiga in different post-fire time series, after severe fires, in order to explain the stability of the community stability along the pyrogenic succession in Kanas Taiga from the ecological perspective, which might be of important practical significance for promoting the restoration and restoration of the Taiga ecosystem in China. 【Methods】 Based on the survey data of 382 samples in the scientific experimental area of Kanas National Nature Reserve, the same forest fire disturbance intensity and the same site conditions were taken as the research premise, eight typical Kanas typical undisturbed Tegalin succession communities under different post-fire time series were selected as the research objects. The improved Gordon, the stability determination method was introduced to evaluate the stability of 8 different post-fire time series in typical undisturbed Tegalin identifiable igneous succession community under intense forest fire disturbance in Kanas National Nature Reserve.【Results】 With the progress of the pyrogenic succession, the stability of the pyrogenic succession community of Kanas Taiga was different in response to post-fire time. Taking the same forest fire severity and site conditions as the research premise, the change of community stability was as follows: The community stability along the pyrogenic succession began to stabilize after the post-fire time of 60 years, and the community stability along the pyrogenic succession increased to some extent with the increase of the post-fire time and eventually slowly stabilized. 【Conclusion 】 The community stability along the pyrogenic succession was unstable before the post-fire time of 60 years , and the community stability along the pyrogenic succession was stable after the post-fire time of 60 years . Therefore, forest fire severity is an important factor affecting the community stability along the pyrogenic succession in Kanas Taiga, Xinjiang. |
| |
| Keywords: | pyrogenic succession forestry fire disturbance severe fire severity post-fire time community stability |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《新疆农业科学》浏览原始摘要信息 |
| 点击此处可从《新疆农业科学》下载免费的PDF全文 |
|
