注意到文化遗产和自然遗产越来越受到破坏的威胁 ,一方面因年久腐变所致 ,同时变化中的社会和经济条件使情况恶化 ,造成更加难以对付的损害或破坏现象。考虑到任何文化或自然遗产的坏变或丢失都有使全世界遗产枯竭的有害影响 ;考虑到国家一级保护这类遗产的工作往往不很完善 , Noting the increasing threat of damage to cultural heritage and natural heritage, on the one hand, due to protracted decay, on the other hand, aggravating conditions resulting from changing social and economic conditions, leading to more insurmountable damage or sabotage. Considering that the pernicious influence of the depletion of the world’s heritage has been caused by the deterioration or loss of any cultural or natural heritage; Considering that the protection of such heritage at the national level is often far from perfect,