摘要
对黄河口30多年来的叶瓣演变过程进行了详细研究。利用遥感假彩色合成解译历年岸线和流路河道变化,利用1976—2005多年的水深数据,定量分析了清水沟叶瓣水下三角洲堆积体不同时段的冲淤变化过程。将水下三角洲堆积体的演变过程划分为4个阶段,即多淤积中心阶段→单一稳定淤积阶段→缓慢淤积阶段→淤积—侵蚀同时发生阶段,证明黄河口三角洲堆积体演变过程对流路演化的阶段性有很好的响应关系。同时对清水沟水下三角洲演化的影响因素进行了分析。
The evolution of the Qingshuigou lobes of the Yellow River in the past 30years is studied in details in this paper. Composite false color remote sensing images since 1976 were used for detecting the changes in shoreline and river channels. Bathymetric data from 1976 to 2005 were processed for study of the depositional and erosional pattern of the subaqueous delta of Qingshuigou lobe. The evolution of the subaqueous delta was divided into 4 phases, multi-center depositional phase, single stable depositional phase, slow depositional phase and depositional erosional phase as the response to the evolution of Qingshuigou channel. Moreover, the factors influencing the evolution of the deltaic lobe were investigated.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2013年第1期19-24,共6页
Marine Geology & Quaternary Geology
基金
国家自然科学基金项目(41006024)
"908"专项(908-ZC-II-05)
泰山学者建设工程专项
关键词
侵蚀淤积
冲淤量
椭圆形堆积体
影响因素
黄河水下三角洲
subaqueous of the Yellow River delta
deposition and erosion
scour and silting amount
oval depositional body
influencing factor
