河北省海岛地貌及其形成

本文对河北省海岛地貌的基本特征,作了较详细的论述,将河北省海岛划分成六种类型,海岛地貌划分成三种基本类型,29种微地貌类型。并探讨了主要海岛类型的形成。     

河流入海泥沙对中国海岸带地貌发育的影响

估算我国河流每年向海输沙达22亿吨左右,其中渤海容纳总量的66.5％,东海27.7％,南海5.5％,黄海0.3％。黄河输沙约占一半,小于4φ的颗粒达80—90％,泥沙扩散较远,从而对我国长江口以北的海岸和浅海水域有举足轻重的影响。我国沿岸各地貌的类型,规模和特点明显地受到各河流入海泥沙的数量和性状的影响,而河流输沙口,即河口的迁移则制约了地貌发育的态势。当输沙口向海延伸或向陆退缩时,以三角洲为核心的地貌组合发生整体迂移,可造成新、老地貌组合互相叠加现象,这是一种渐变过程。当河流输沙口在较大范围内摆动时,就导致了入海泥沙在空间上的突然转换,原河口附近的堆积地貌组合因受侵蚀而退化,而在新河口处开始发育新的堆积地貌组合,其过程     

THE ORIGINS AND CLASSIFICATION OF EARTHQUAKE LANDFORMS IN THE ALLUVIAL PLAINS OF EASTERN CHINA

Based on observations of earthquakes that have occurredin theplains of eastern China during recent yeas, the characteristics origins, classification and distribution patterns of earthquake landforms in alluvial plains are discussed. In such flat areas, earthquakes are capable of complete reversal of topographic gradients; minor hills can be replaced by hollows and depressions can experience uplift. The major factors influencing the development of such landforms in alluvial plain are the force of the earthquake, surface and sub-surface characteristics, the thicknesses of different subsurface layers, the height of the groundwater table and the relief. Earthquake hndforms in alluvial plains may be classified hto three main groups (1) Landforms directly associated with the liquefaction of sand hyers; (2) Landforms associated with the passage of earthquake waves; and (3) Landforms associated with earthquake structures. In turn, these categories can be further sub-divided. Through analysis of the Tangshan earthquake landforms, several characteristics of the distribuinn patterns of earthquake landforms in allu vial plains have been recognised.     

昌黎黄金海岸自然保护区功能分区和管理研究

本保护区以占主导地位的海岸景观,分散的保护对象和较少程度的开发为特征,在划分功能区时没有采用传统的方法,而是根据环境特点,生物和非生物的组合,功能和主导措施方面的差别,将本区划分成4个功能区。     

试论昌黎黄金海岸自然保护区的旅游开发

探讨自然保护区如何开展生态旅游，在评价旅游资源的基础上，提出昌黎黄金海岸自然保护区的生态旅游设想