中国科学院长春地理研究所主编的《长江流域水体环境背景值研究图集》（简称《图集》）１９９８年８月由科学出版社出版。本《图集》编制任务来源于国家“七五”攻关专题研究项目《长江水系水体环境背景值调查研究》。这是一项由中国科学院、国家环境保护局和国家教育委员... Changchun Institute of Geography, Chinese Academy of Sciences, “the Yangtze River Basin water environment background value atlas” (referred to as “Atlas”) 1998 August by the Science Press. The preparation of this Atlas comes from the “Seventh Five-Year” research project of the State, “Investigation on the Background Value of Water Environment in the Yangtze River System”. This is a by the Chinese Academy of Sciences, the State Environmental Protection Agency and the State Education Commission ...