User:台北人/沙盒/沙盒14
維基百科,自由的 encyclopedia
支流(英語:Tributary、Affluent[1]、Confluent[2]),是指匯入幹流或其他水體,而不直接入海的河流或溪流。[3]支流與幹流共同組成一條河流的水系;兩條或多條河流的交會處稱為合流(英语:Confluence)或匯流處,而與支流相反的概念是分流——離開幹流,獨自入海的河流。[4]支流的變種再合支流(英語:Anabranch)相似但有別於分流,前者亦從幹流中岔出,然而在行進一段距離後便會再次匯入幹流。
A tributary[5] or affluent[6] is a stream or river that flows into a larger stream or main stem (or parent) river or a lake.[7] A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean.
A confluence, where two or more bodies of water meet together, usually refers to the joining of tributaries.
The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream.[8] Distributaries are most often found in river deltas.