“语言景观最基本的信息功能是作为语言社区所居住的地理领域的独特标志(Bourhis,1992)。语言景观还有助于划定它所容纳的语言团体在相邻领土上其他语言社区居住的领土界限。在领土内语言景观中始终用一种语言可以促进给定地理区域相邻语言群体之间的清晰语言界限。确立了语言界限可以通过明确划分成员可以期望以其自己的语言使用和接收政府和私人部门服务的行政领土，使敌对语言群体之间的关系稳定下来。因此，语言景观有助于向内部和外部成员提供他们进入的地区的语言特征、领土限制和语言界限的信息。”

“The most basic informational function ofthe linguistic landscape is that it serves as a distinctive marker of the geographical territory inhabited by a givenlanguage community (Bourhis, 1992). The linguistic landscape also serves to delineate the territorial limits of the language group it harbors relative to other linguistic communities inhabiting adjoining territories. Consistent use of a single language within the linguistic landscape of a territorycan contribute to clear-cut language boundaries between adjoining language groups in a given geographical region. Well-established language boundaries can stabilize relations between rival language groups by clearly delineating the administrative territories where members of the language group can expect to use and receive government and private sector services in their own language. Thus the linguistic landscape serves to inform in-group and out-group members of the linguistic characteristics, territorial limits, and language boundaries of the region they have entered.” (Landry 和 Bourhis, 1997, p. 25)