GEOMORPHIC THRESHOLDS - CONCEPT AND ITS APPLICATIONS

被引：359

作者：

SCHUMM, SA ^{[1
]}

机构：

[1] COLORADO STATE UNIV,FT COLLINS,CO 80521

来源：

TRANSACTIONS OF THE INSTITUTE OF BRITISH GEOGRAPHERS | 1979年 / 4卷 / 04期

关键词：

D O I：

10.2307/622211

中图分类号：

P9 [自然地理学]; K9 [地理];

学科分类号：

0705 ; 070501 ;

摘要：

Geomorphic thresholds were defined initially as the condition at which there is a significant landform change without a change of external controls such as base level, climate and land use. Subsequently, through usage, the definition has been broadened to include abrupt landform change as a result of progressive change of external controls. Therefore, it is now appropriate to recognize both intrinsic and extrinsic geomorphic thresholds. If the threshold conditions can be recognized, not only will different explanations for some landforms emerge but also the ability to identify incipiently unstable landforms and to predict their change will be of value to land managers and engineers. -from Author

引用

页码：485 / 515

页数：31