广西海岛岸线资源空间分布特征及其利用模式研究

发布时间：2018-11-10 07:31

【摘要】：海岛的可持续发展关乎海洋生态平衡、海洋经济发展和国家安全。海岛岸线空间资源是海岛开发利用价值的核心内容之一。本文基于数理统计和经验正交函数分析法,分析广西646个海岛的岸线长度、岸线系数及岸线空间资源利用模式。结果表明:1)广西海岛岸线长度小,大部分海岛的岸线长度小于2 000m,可利用岸线资源贫乏。2)岸线系数超过0.2的海岛仅占海岛总数的5%,大部分海岛的岸线空间利用价值不大。3)广西海岛岸线资源利用可分为4个模态,其中第一模态反映了岸线资源利用为特征的主要模态,相关指标包括三通一平、近陆距离、海岛面积、海岛侵蚀能力;第二模态仍是表征岸线资源利用为主的模态,但指标主要包括最高点高程和海岛侵蚀能力;第三、四模态是海岛以生态环境保护为主的次要模态,包括植被覆盖、最高点高程两个主要指标。
[Abstract]:The sustainable development of the island is related to the marine ecological balance, marine economic development and national security. The shoreline space resource is one of the core contents of the exploitation and utilization value of the island. Based on mathematical statistics and empirical orthogonal function analysis, this paper analyzes the length of shoreline, the coefficient of shoreline and the utilization mode of shoreline space resources in 646 islands in Guangxi. The results are as follows: 1) the length of coast line of Guangxi island is small, the length of coast line of most islands is less than 2 000 m, and the resources of shore line are poor. 2) the island whose coastline coefficient is more than 0.2 only accounts for 5% of the total number of islands. The coastal space utilization of most islands is of little value. 3) the utilization of shoreline resources in Guangxi islands can be divided into four modes, among which the first mode reflects the main modes characterized by the utilization of shoreline resources, and the related indexes include three connections and one level, and the distance from land to land. Island area, island erosion capacity; The second mode is still the mode that characterizes the utilization of shoreline resources, but the indexes mainly include the highest elevation and the erosion ability of the island. The third and fourth modes are the secondary modes of ecological environment protection in the islands, including vegetation cover and the height of the highest point.
【作者单位】：华东师范大学河口海岸学国家重点实验室;广西师范学院北部湾环境演变与资源利用教育部重点实验室;钦州学院资源与环境学院;
【基金】：国家自然科学基金项目——北部湾北部强潮海滩动力地貌过程(41376097) 北部湾环境演变与资源利用教育部重点实验室开放基金项目——北部湾广西海域海岛岸线资源可持续利用研究(2014BGERLKF04) 广西北部湾海洋生物多样性养护重点实验室自主项目——钦州湾大面积围填海对生物多样性的影响(2015ZA01)
【分类号】：P748

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