林火对大兴安岭典型林型林下植被与土壤的影响OA北大核心CSCDCSTPCD
Impact of forest fire on understory vegetation and soil in typical forest types of Daxing＇an Mountains, northeasternChina.
利用大兴安岭南瓮河保护区典型林型的样方调查资料，并采用灰色关联度分析，对不同强度林火干扰下草类一白桦林和草类一落叶松林林下植被的物种多样性、生物量和土壤因子的关联性进行研究。结果表明：1）所有调查样地林下植被的物种丰富度、Shannon指数和Simpson指数等物种多样性指数随着火烧强度增加而降低，表现出未火烧〉中度火烧〉重度火烧的趋势，而物种多样性指数年变化量均有明显的增加，其中林火干扰的林下植被物种多样性的增加明显高于未受林火干扰的林下植被物…查看全部>>
The effects of forest fire on biomass and species diversity and soil physical and chemical properties in Betula platyphylla and Larix gmelinii forests were studied to analyze the correlation among them according to the sample survey and using grey sequence analysis. The results showed that the understory vegetation diversity index was descending with the increase of fire intensity ： unburned 〉 moderate fire 〉 serious fire, although the annual variation obvio…查看全部>>
张玉红;覃炳醒;孙铭隆;周志强
东北林业大学森林植物生态学教育部重点实验室东北林业大学森林植物生态学教育部重点实验室东北林业大学森林植物生态学教育部重点实验室东北林业大学森林植物生态学教育部重点实验室
农业科技
林火强度物种多样性生物量灰色关联大兴安岭
forest fire intensityspecies diversitybiomassgrey sequenceDaxing'an Mountains
《北京林业大学学报》 2012 (2)
7-13,7
黑龙江省科技计划项目（GA098201-02）、东北林业大学研究生论文资助项目（gram09）.
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