山区河流干支流交汇形式的重新划分

目前对干支流汇流口都只从斜接式交汇和"Y"型交汇两种形式来研究,这种交汇形式并未考虑到实际河型,因而这不能反映出山区河流汇流口的真实特征。为了解决这个问题,就需要对传统的汇流口交汇形式进行重新分类和研究,诸多的天然河道资料显示,支流在交汇段基本上属顺直型,干流在交汇段则呈现出弯曲、顺直、或分汊的河型特征。因此,从河型角度对干支流汇流口分类,有着实际的意义。

Re-division of Confluence Patterns of Main Stream and Tributaries of Rivers at Mountainous Area

The current researches on the confluence of main stream and tributaries are carried out from miter-shaped confluence and "Y"-shaped confluence,which doesn't take the real river pattern into consideration.Therefore,these researches can't express the real characteristics of the river confluence at mountainous river.To solve the problem,the traditional forms of confluence need to be re-divided and studied.A lot of information about natural rivers shows that tributaries at the confluence are almost straight types,while main streams at the confluence are always with the bend,straight,or bifurcation form.So the division of confluence patterns in the light of the river patterns has practical values.