日照海岸带动力过程与地貌特征分析

Analysis of Dynamic Process and Geomorphologic Characteristics of Coastal Zone in Rizhao

摘要: 日照市作为一个著名的沿海城市，得天独厚的地理位置使其具有非常丰富的海洋资源和滨海旅游资源。本文以日照市海岸带区域为研究对象，研究了日照市海岸带的动力过程及其地貌特征之间的关系，对日照市海岸带地区进行了野外调查，并对典型地区进行了样品采集。通过对样品进行实验，获得实验数据，并且结合相关文献资料，分析了日照市海岸带的沉积物粒度、水动力过程及其地貌特征，得到日照市海岸带地区多数调查海滩的平均粒径在0.7~2.5 φ之间，总体上海滩的分选性为中等或者相对较差，其粒度频率曲线尖锐，峰态以窄态分布为主，偏态主要是负偏状态。同时日照市海岸带的海滩类型主要为沙坝–泻湖型和夷直型两种，而研究的重点区域万平口海水浴场为沙坝–泻湖型。此研究结果有助于更加客观地了解目前日照海岸带的地貌特征，为研究者对日照市海岸带的探讨分析以及政府开发利用提供了可信的数据支持和理论依据。

Abstract: As a famous coastal city, Rizhao has the unique geographical location that makes it have very rich marine resource and coastal tourism resources. Rizhao Coastal Zone is as the research object in this article. A field survey was carried out on the coastal zone of Rizhao City and sample collection was performed in typical areas. The dynamic process and geomorphological characteristics of the Rizhao Coastal Zone are studied. The sediment grain size, hydrodynamic process and geomorphologic characteristics of Rizhao coastal zone are analyzed by the experiment of the samples and the experimental data. The following conclusions are drawn: The average diameter of the survey beaches in the coastal zone of Rizhao is between 0.7 φ and 2.5 φ. In general, the sorting of the beach is medium or relatively poor, the grain size frequency curve is sharp, the kurtosis is mainly distributed in a narrow state, and the skew state is mainly a negative bias state. The types of beaches in the coastal area of Rizhao City are mainly sand bar-lagoon type and straight type. The important area of Wanpingkou bathing beach is sand bar-lagoon type. The results of this study will help to understand the development and utilization of the current Rizhao coastal zone and provide credible data support and theoretical basis for the researchers to analyze the zone of Rizhao City and instruct the government development and utilization in the zone of Rizhao City.