裂点
河谷纵剖面上的坡度转折点。裂点处河流常形成急流或瀑布。侵蚀基淮面下降或地壳抬升，使河流产生溯源侵蚀，并形成新的河谷。它与未被溯源侵蚀的老河谷交替处，河床坡度突然增加，形成裂点。此外，河流纵剖面上，因岩性差异或构造断裂，也能产生差别侵蚀而形成裂点。
Classification(s)
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Geographic semantic resource library Earth System(in Chinese) Geomorphology
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| English |
|---|
| Name | knick point |
| Chinese |
|---|
| Name | 裂点 |
| Description | 河谷纵剖面上的坡度转折点。裂点处河流常形成急流或瀑布。侵蚀基淮面下降或地壳抬升，使河流产生溯源侵蚀，并形成新的河谷。它与未被溯源侵蚀的老河谷交替处，河床坡度突然增加，形成裂点。此外，河流纵剖面上，因岩性差异或构造断裂，也能产生差别侵蚀而形成裂点。 |
{{htmlJSON.HowtoCite}}
NNU_Group (2011). 裂点, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/baecfde2-49d6-462e-8c5d-e17b5b7f9a1d
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