本文介绍了晚清重臣左宗棠督西北期间,号令军民沿陕甘驿道、甘新驿道栽植的常见的耐旱树种左公柳的概况;分析了左公柳的文化内涵:景观文化、生态文化和政治文化,提出在现实生活中,左公柳对于环境保护、旅游开发、政绩观等方面都具有非常重要的价值。 This article introduces the general situation of Zuogongliu, a common drought-resistant tree species planted along the Shaanxi-Gansu post and Gansu post-road during the Zuozongtang governor of the late Qing dynasty, Zuozongliu in the late Qing Dynasty. It analyzes the cultural connotation of Zuogongliu: landscape culture, ecological culture And political culture, put forward in the real life, Zuo Gongliu for environmental protection, tourism development, view of achievements and other aspects have a very important value.