论文部分内容阅读
从主流、汊道变化、洲滩演变及岸线变化等方面分析安徽省长江干流河道的近期演变情况。在近几十年的护岸工程控导下 ,近期河势变化得到初步控制 ,沿江岸线变化相对稳定。洲滩由于尚未得到治理 ,其演变较大 ,主要表现为洲滩与江岸并接、江心洲冲淤、合并及切滩。 1998年大洪水给长江河道演变带来了较强的影响 ,一些河段的河势发生了较大的变化 ,对于不利的河势演变 ,应当尽快提出治理措施 ,及时进行整治。
The recent evolution of the mainstream of the Yangtze River in Anhui Province is analyzed from the aspects of the mainstream, the change of channel, the change of beach bank and the change of shoreline. Under the control of the revetment project in recent decades, the river regime changes have been initially controlled and the changes along the coastline are relatively stable. Island Beach has not yet been due to governance, its evolution is larger, mainly as Chau Beach and the river bank, Jiang Xinzhou scour and silting, merger and cut the beach. The great flood in 1998 brought a strong influence on the evolution of the Yangtze River. The river regime in some sections of the river changed greatly. For unfavorable river regime evolution, measures should be put forward as soon as possible so as to timely remediation.