关键词: 政策文本, 工业绿色转型, TF-IDF文本分析法, 西北地区

Abstract: This paper, based on polices issued by local government from 2008 to 2017 in Northwest China, uses TF-IDF method to study the policy orientation of industrial green transformation in five northwestern provinces in recent ten years aiming at offering experiences for China's northwestern or other areas in green transformation, and enriching the research content of urban green transformation. The number of issued related policies by local governments is increasing in Northwest China, Shaanxi and Gansu sitting on the top, while Ningxia and Qinghai having less. The key words with bigger weight in the policies include “construction” “enterprise” “quality” and “pollution” in five northwestern provinces, also include “dust” “coal” “kiln” and “vehicle” in some provinces. Cities issuing industrial green transformation policies are also rising in number. The governments pay more attention on efficiency and production safety, but less on environmental protection and innovation policy orientation.

Key words: policy, industrial green transformation, TF-IDF, Northwest China