摘要
[目的]探讨我国东南区和西北区丹霞地貌区域特征及其成因。[方法]以福建省和甘肃省作为我国丹霞地貌的代表区域,选取福建省武夷山、永安和甘肃省本康、张掖等典型地点,通过实地考察,对比东南和西北两大区域的丹霞地貌在形态特征、物质结构、形成条件、发育过程上的地域差异,并对造成地域差异的内外营力要素和时间因素进行了探讨。[结果]我国境内发育的丹霞地貌区域差异显著。福建省丹霞地貌"顶平、身陡、麓缓",多发育临溪丹崖赤壁、一线天等亚热带湿润区丹霞地貌景观,而甘肃省则表现为"顶圆、檐突、身陡、麓缓",发育温带干旱—半干旱区丹霞地貌景观。[结论]我国丹霞地貌的地域差异性是在构造运动的阶段性、地貌外力的分带性和发育过程的周期性等因素综合作用下形成的。
[Objective] The study aims at exploring the regional characteristics and causes of Danxia landform in southeast China and northwest China.[Method] With Wuyi Mountain and Yong＇an in Fujian Province and Benkang and Zhangye in Gansu Province as study area,through field survey,the Danxia landforms of southeast China and northwest China are compared in their morphological characteristics,structure,development process,and forming condition.Then the internal and external factors and the time factor leading to the regional difference are discussed.[Result] The Danxia landforms in China vary from place to place.The Danxia landform in Fujian is marked with ＂flat top,steep slope and slow foothill＂,developing into the landscape of Danxia landform in subtropical humid area,such as the waterside red cliff and the strip of sky.Gansu is marked with ＂round top,protuberant eaves,steep slope and slow foothill＂,developing into the landscape of Danxia landform in temperate arid and semi-arid areas.[Conclusion] The regional difference of Danxia landform in China is the comprehensive result of staggered tectonic movement,zonal external force of physiognomy and periodic development process.
出处
《安徽农业科学》
CAS
北大核心
2010年第29期16446-16448,共3页
Journal of Anhui Agricultural Sciences
基金
国家基础科学人才培养基金(J0830521/J0105)
关键词
丹霞地貌
地域差异
成因分析
福建
甘肃
Danxia Landform
Regional difference
Cause analysis
Fujian
Gansu
