The important role allocated to scientific research in developed countries and to international scientific cooperation is linked to the fact that desertification and the associated processes are now perceived as global, cross-border phenomena.
67. 之所以十分重视发达国家的科学研究和国际科学合作，是因为现在人们将荒漠化及其相关的进程视为全球性的和跨国界的现象。