Evolution of the lowermost sector section of the Lis river

Authors

  • José Nunes André Mestre em Geografia Física, Centro de Formação de Professores- Conímbriga (CEFOP).
  • Maria de Fátima Neves Cordeiro Mestre em Geografia Física, Escola Secundária de Vieira de Leiria

DOI:

https://doi.org/10.14195/1647-7723_9_8

Keywords:

Lis River, Portugal central, river evolution, environmental problems.

Abstract

A synthesis concerning the evolution of the lowermost sector of the Lis River is here presented. Taking into account the hypothesis o f a general SSE-NNW direction of this river during the Pleistocene/Holocene, reaching the nowadays Osso da Baleia beach, the evolution was characterized by a significant rotation towards West of the vestibular section. During the last centuries very important displacements of the river mouth were recorded until artificial stabilization, through embankment. Progressive silting resulted in a drastic reduction of the river navigability. The main environmental problems are also described.

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Published

2002-09-15

Issue

No. 9 (2002)

Section

Articles

License

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows sharing the work with recognition of authorship and initial publication in Antropologia Portuguesa journal.