河流地貌多样性内涵、分类及其主要修复内容

Connotation,Classification and Restoration Contents of River Morphology Diversity

针对河流修复中对河流地貌重视不够及多样性认识不深等问题,解析了河流地貌多样性的内涵及与河流栖息地的统一性,将常见河流地貌类型分为3种河谷地貌、38种河床地貌、15种水流形态以及人工活动形成的地貌类型,并提出基于过程的修复策略来修复河流地貌。在修复河流地貌时,首先应充分考虑形成河流地貌的水陆域过程,识别泥沙源时空分布,并重点修复深槽—浅滩序列。

Aiming at problems in river restoration including little importance of river morphology and little cognition about its diversity, this paper parses the connotation of river morphology diversity and uniformity with river habitats. And common river morphology is classified into 3 valley geomorphology, 38 river bed geomorphology, 15 flow pattern and landform types formed by human activities. Then it puts forward strategy of river restoration based on process. Rehabilitation actions to repair river morphology should fully consider the water and land processes formed by river mor phology and surveys the distribution of sediment source and focus on describing restoration of pool shoal sequences.