上海市地貌类型与地貌分区

本文从沉积相分析出发,采用形态、成因、年龄和组成物质等综合标志,将上海地区地貌类型划分为三角洲平原、三角洲前缘、前三角洲、潮坪、滨海平原和湖沼平原共六大单元,以及河口砂岛、湖沼洼地等18个次一级地貌类型和数10个更小的地貌形态。并按地貌类型的组合特征,结合本区农业地貌条件利用与改造的地域差异,明显地将本区划分为河口三角洲、东部滨海平原和西部湖沼平原三个地貌区。

An Analysis on Geomorphology Typesl and Zonation of the Shanghai Municipality Area

In light of analysis on sedimentological facies, and by integrating morphological, genetic, chronological, and sediment-compositional evidences, the shanghai ares is divided into six geomorphological units: deltaic plain, delta-front, prodelta, tidal flat, coastal plain, and lake-marshy plain; 18 subunits: river-mouth island, lake- marshy low land, etc.; and scores of micro-geomorphological types. In addition, the area studied is sectionalized, while taking into account the constructed geomorphology-type yattern and the apparent dieffrence in exploitation between various sectors into three distinct geomorphology zones: River--mouth, Deltaic Plain, East Coastal Plain, and West Lake-marshy Plain.