珲春市物种保护生态安全格局构建研究

发布时间：2018-01-26 02:35

本文关键词： 珲春重点物种保护区景观格局演变人为干扰生物保护安全格局　出处：《中国科学院大学(中国科学院东北地理与农业生态研究所)》2017年硕士论文　论文类型：学位论文

【摘要】：珲春市作为我国东北乃至东北亚地区具有重要生态战略地位的边境城市,其生态系统服务功能在维护地区生态平衡中发挥突出作用。境内资源种类和总量丰富,特别是以东北虎、豹、梅花鹿、红豆杉等种群为典型代表的生物种质资源在东北亚地区物种多样性及稀缺性保护中具有不可替代的作用,因此珲春市在实现其“边界贸易口岸城市”功能进程中,特别是响应“一带一路”“中蒙俄大通道”经济战略背景下,协调经济对外开放与生态文明建设、维护区域生物多样性成为地区发展的首要战略任务;基于此,本文以珲春市境内重要物种保护区为研究对象,对其1999年以来物种生境景观动态变化进行分析,同时探讨人为干扰对景观格局变化影响机制,提出相应保护对策并构建珲春市物种保护生态安全格局。本研究共分为以下几个部分:第一部分:主要从研究背景、研究区域背景两个方面概述了论文的选题背景,并对生态安全及生态安全格局的国内外研究进展和步骤方法进行了综述,明确了本研究的目的及意义。第二部分:运用景观指数法对1999年-2015年珲春市重要物种保护区景观进行时空分异研究,并根据排序法进行景观演变驱动因子分析,结果表明研究区2010年以来景观破碎化趋势显著,人为干扰因子为景观格局演变重要驱动;为景观演变作用机制研究奠定基础。第三部分:运用广义相加模型定量进行人为干扰对景观演变作用机制探究,结果表明人为干扰对景观破碎化作用机制最突出,干扰度决定景观变化过程、程度及变化趋势。第四部分:运用最小累积阻力模型,构建珲春市物种保护生态安全格局,并在上述研究基础上对珲春市土地利用现状进行评价,提出对应土地管理布局优化对策。
[Abstract]:Hunchun City, as a border city with important ecological strategic position in Northeast China and Northeast Asia, its ecosystem service function plays a prominent role in maintaining regional ecological balance. Especially, the biological germplasm resources, such as Siberian tiger, leopard, sika deer, yew and so on, play an irreplaceable role in species diversity and scarcity protection in Northeast Asia. Therefore, in the process of realizing its function of "border trade port city", Hunchun coordinated economic opening and ecological civilization construction under the background of economic strategy of "Belt and Road" and "Sino-Mongolian and Russian big passage". Maintaining regional biodiversity has become the primary strategic task of regional development; Based on this, this paper takes the important species reserve in Hunchun as the research object, analyzes the dynamic changes of species habitat landscape since 1999, and probes into the influence mechanism of human disturbance on landscape pattern change. This study is divided into the following parts: the first part: mainly from the research background. The background of this paper is summarized from two aspects of the regional background, and the progress and steps of ecological security and ecological security pattern at home and abroad are summarized. The purpose and significance of this study are clarified. Part two: using the method of landscape index to study the spatio-temporal differentiation of the important species reserve landscape in Hunchun city from 1999 to 2015. The results show that the landscape fragmentation trend is significant since 2010, and the artificial disturbance factor is an important driving force for landscape pattern evolution. The third part: using generalized additive model to quantitatively explore the mechanism of human disturbance to landscape evolution. The results showed that the mechanism of anthropogenic disturbance on landscape fragmentation was the most prominent, and the degree of disturbance determined the process, degree and trend of landscape change. Part 4th: minimum cumulative resistance model was used. The ecological security pattern of species protection in Hunchun City was constructed. Based on the above research, the present situation of land use in Hunchun City was evaluated, and the corresponding countermeasures of land management layout optimization were put forward.
【学位授予单位】：中国科学院大学(中国科学院东北地理与农业生态研究所)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：Q16

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