１前言 渤海海峡中南部的南砣矶、高山、矶水道，在解放前都开放供商船通航进出渤海。解放初期，出于巩固海防和便于对进出渤海商船管理的需要，才加以封闭，只保留北面的老铁山水道和南面的长山水道供商船通航进出渤海。 提出恢复开放砣矶、高山、矶水道的建议的原因： ①随着 1 Foreword The middle and southern Bohai Strait, Nanxunji, alpine, and waterways, are open for commercial shipping before entering the Bohai Sea. In the early period of liberation, it was necessary to close up the need to consolidate the coastal defense and facilitate the management of the merchant ships entering and leaving the Bohai Sea, leaving only the Laotieshan Channel to the north and the Changshan Channel to the south for shipping to and from the Bohai Sea. The reasons for recommending restoring open desert, mountain, and sandy waterways are as follows: ① With