旅顺口区生物多样性评价研究

发布时间：2018-03-27 16:16

本文选题：旅顺　切入点：生物多样性　出处：《大连理工大学》2015年硕士论文

【摘要】：旅顺口区位于辽东半岛的最南端,三面临海,拥有169.7km的海岸线,2.2万hm2的浅海(水深40m)海面、滩涂,众多的沿海湾口和岛礁。旅顺口区独特的区位和丰富的栖息地类型使得这里具有丰富的生物多样性,不仅在我国还是在国际上,旅顺口区的生物多样性保护都具有十分重要的地位。本研究通过实地调查、资料收集等方式获取旅顺口区的生物多样性相关的数据,采用拟定的生物多样性评价方案,确定了4个一级指标,即物种丰富度、生态系统类型多样性、物种受威胁程度、生物多样性保护与响应和15个二级指标,分别为物种多样性、物种分布状况、特有种数量、特有种群数量、生境类型多样性、生境自然性、生境稀有性、生态系统代表性、生态系统稳定性、自然生态系统覆盖率、受威胁物种数量、外来物种种数、人类威胁、自然保护区建设、环保资金投入,结合生物多样性综合评价法和模糊综合评价法的一种优化的评价方法——生物多样性模糊综合评价法,邀请20位专家对旅顺口区生物多样性进行等级评价,通过专家打分计算获得的各种指标所处现状的打分,对旅顺口区的生物多样性进行综合评价。结果表明,旅顺口区的生物多样性等级为高,物种高度丰富,特有属、种繁多,生态系统丰富多样。
[Abstract]:Located at the southernmost tip of the Liaodong Peninsula, the Lushun area faces the sea three times, the coastline of 169.7km, the shallow sea (40 m deep) of 22000 hm2, and the tidal flat. The unique location and rich habitat types of the Lushun area make it rich in biodiversity, not only in China but also in the international community. The biodiversity conservation of Lushun Kou district is of great importance. This study obtains biodiversity related data through field investigation, data collection and so on, and adopts the proposed biodiversity assessment program. Four primary indicators, namely, species richness, ecosystem type diversity, species threatened degree, biodiversity conservation and response, and 15 secondary indicators, were identified as species diversity, species distribution status, and number of endemic species, respectively. The number of endemic populations, the diversity of habitat types, the naturalness of habitats, the rarity of habitats, the representativeness of ecosystems, the stability of ecosystems, the coverage of natural ecosystems, the number of threatened species, the number of alien species, the threat of human beings, The construction of nature reserves, the investment of environmental protection funds, and the combination of biodiversity comprehensive evaluation method and fuzzy comprehensive evaluation method, a kind of optimized evaluation method-Biodiversity fuzzy comprehensive evaluation method, Twenty experts were invited to carry out a grade evaluation of the biodiversity of the Lushun Kou area, and a comprehensive assessment of the biodiversity of the Lushun area was carried out by scoring the current situation of the various indicators obtained by the experts. The area has a high level of biodiversity, highly abundant species, endemic genera, various species and rich ecosystems.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X826

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