摘要
对广东省饶平县樟溪镇青岚地质公园内青岚河河床上分布的169处壶穴进行详细测量,结合野外考察结果,运用定量统计方法分析壶穴的地貌特征,探讨壶穴的形成和发育过程.结果表明,壶穴形态多样,以椭圆形为主.壶穴主要分布在高水河床上的基岩面上或是跌水、瀑布处.长短轴之比、口径和深度在河床纵向上没有明显的变化规律.壶穴的大小、深度和形态的变化主要受流水作用、基岩、节理、河床地貌等的影响.节理可能是该地多数壶穴的形成和发育的主要控制因素.青岚河与广东其它研究地点的壶穴特征具有高度一致性,证明山地丘陵区河流壶穴的形成与发育具有共性规律.
One hundred and sixty-nine potholes on the Qinglan River bed in the Qinglan Geopark in Zhangxi Town, Naoping County, Guangdong Province, were investigated. The Geomorphological characteristics of potholes were analyzed through field investigation and quantitative statistical methods, and formation and developmental process of pothole were discussed. The results show that potholes display varied shapes, although they are mainly ellipse. Most of potholes distribute in the bed rock surface of high water level riverbed, or near the waterfall. There is no obvious rule for the axial ratio, size and depth change along the riverbed. Alteration of size, depth and shape was controlled by fluviation, bedrock, joint, riverbed landforms, et al. Joint may be the main controlling factor of formation and development of potholes in this area. Features of pothole in Qinglan River are highly consistent with other sites in Guangdong Province. This indicates that there are some universal rules in formation and development of fluvial pothole in the hilly and mountainous area.
出处
《嘉应学院学报》
2017年第5期79-83,共5页
Journal of Jiaying University
基金
国家自然科学基金(41371080)
广东省高等学校优秀青年教师培养计划(20140102)
关键词
河流地貌
河床壶穴
形态特征
节理
青岚河
fluvial landform
riverbed pothole
morphological characteristics
joint
Qinglan River
