“Dutch sand ladder”的意思、由来-开放百科全书

词条

Dutch sand ladder

释义

References

A Dutch sand ladder is a cable or rope ladder with rungs usually made of wood, lying on a sandy slope to allow persons to ascend or descend with minimal erosion.^[1] The bottom end is anchored and the top end is designed for easy disconnection so that the ladder can be lifted up to shake loose any sand that has accumulated on the rungs.^[1] The ability to be easily maintained and reset makes sand ladders useful trail features for steep sand dunes or other easily eroded areas where permanent structures are infeasible or impractical.^[1]

References

1. ^¹²{{cite magazine |title=Dutch Sand Ladder |url=http://www.seagrant.sunysb.edu/glhabitat/dune/dutchsandladder.pdf |magazine=Grist |publisher=National Park Service, U.S. Department of the Interior, and National Recreation and Park Association |date=Spring 1984 |volume=28 |number=2 |pages=13–15}} Use of Dutch Sand Ladders in Fort Funston. Illustrated.

{{cite book |author=Alan Brooks |author2=Elizabeth Agate |url=http://www.summerfieldbooks.com/sand%2Ddunes%2D%2D%2Da%2Dpractical%2Dhandbook%7E2754 |publisher=The Conservation Volunteers |title=Sand Dunes |chapter=Access Management |year=2005 |isbn=0-946752-32-X }} Discussion of Dutch sand ladders, boardwalks, and other walkway constructions for sand dune access management, illustrated

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