喀纳斯泰加林群落物种多样性环境解释与自然火干扰

生态学杂志

喀纳斯泰加林群落物种多样性环境解释与自然火干扰

崔倩¹,潘存德^1*,李贵华²,余戈壁³,陈虹¹,刘景¹,杨玉萍¹,刘博¹

（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新疆维吾尔自治区林业厅，乌鲁木齐 830000；³喀纳斯国家自然保护区，新疆布尔津 836600）

出版日期:2018-06-10 发布日期:2018-06-10

Effects of environmental factors and natural fire disturbance on species diversity in Kanas taiga forest.

CUI Qian¹, PAN Cun-de^1*, LI Gui-hua², YU Ge-bi³, CHEN Hong¹, LIU Jing¹, YANG Yu-ping¹, LIU Bo¹

(¹College of Forestry and Horticulture, Xinjiang Agricultural University/Key Laboratory of Forest Ecology and Industry Technology in Arid Region, Education Department of Xinjiang, Urumqi 830052, China; ²Forestry Department of Xinjiang Uygur Autonomous Region, Urumqi 830000, China; ³Kanas National Nature Reserve, Burjin 836600, Xinjiang, China).

Online:2018-06-10 Published:2018-06-10

摘要/Abstract

摘要： 以新疆喀纳斯国家自然保护区科学实验区未受人为干扰的泰加林火成演替森林群落为对象，基于160个样方及其自然火干扰发生时间和火烈度的调查，采用冗余分析方法，分析森林群落物种多样性与环境因子和火干扰因子之间的关系以及草本层、灌木层和乔木层物种多样性与群落物种多样性之间的关系。结果表明：喀纳斯泰加林群落草本层物种多样性受环境因子海拔、土壤含水量、土壤全氮含量、土壤温度和火干扰因子火烈度的影响较大；灌木层物种多样性受海拔、土壤含水量、土壤电导率和土壤有机质含量的影响较大；乔木层物种多样性受环境因子海拔、土壤含水量、土壤有机质含量、土壤全氮含量和火干扰因子火烈度的影响较大。泰加林群落物种多样性除受环境因子海拔、土壤含水量和土壤有机质、全氮含量和火干扰因子火烈度的影响较大，草本和乔木层的相互作用和影响，对群落物种多样性起了决定性作用。喀纳斯泰加林群落物种多样性分布格局是由以海拔为主的多种因子综合作用的结果。

关键词: 朝鲜崖柏, 濒危植物, 种群结构, 生存分析, 动态指数

Abstract: Biodiversity is the basis for sustainable development of an ecosystem. Exploring the influences of environmental and disturbance factors on species diversity is important for maintaining ecosystem structure and function. Based on the investigation of 160 plots and the occurrence time and severity of natural fires in the Kanas taiga forest in Xinjiang, we analyzed the relationships between species diversity of forest communities and environmental and natural fire disturbance factors, and the relationships between species diversity of herb layer, shrub layer, and tree layer and species diversity ofcommunities by redundancy analysis. The results showed that species diversity in the herb layer was affected mainly by altitude, soil moisture, soil total nitrogen content, soil temperature, and fire severity. Species diversity in shrub layer was mainly affected by altitude, soil moisture, soil conductivity, and soil organic matter content. Tree layer species diversity was affected by altitude, soil moisture, soil organic matter content, soil total nitrogen content, and fire severity. Community species diversity was mainly affected by altitude, soil moisture, soil organic matter content, soil total nitrogen content, and fire severity. Moreover, herb layer and tree layer interacted with each other, and played a determining role in community structure. Species diversity patterns in the Kanas taiga forest were formed by the synthetic action of a variety of environmental factors and natural fires in which elevation played an important role.

Key words: Thuja koraiensis, endangered species, population structure, survival analysis, dyna-mic index.

崔倩,潘存德,李贵华,余戈壁,陈虹,刘景,杨玉萍,刘博. 喀纳斯泰加林群落物种多样性环境解释与自然火干扰[J]. 生态学杂志.

CUI Qian, PAN Cun-de, LI Gui-hua, YU Ge-bi, CHEN Hong, LIU Jing, YANG Yu-ping, LIU Bo. Effects of environmental factors and natural fire disturbance on species diversity in Kanas taiga forest.[J]. cje.

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