【文章內(nèi)容簡介】
his method of scientometric analysis about research fronts from the perspective of Sigma values was more prehensive,and also had a certain reference value by using paper also summarized the shortings of the Nature Index in the evaluation of scientific research. 〔Key words〕nature index;scientometrics;earth and environmental science;CiteSpace;Sigma 1研究背景及問題提出 2020年自然出版集團推出旨在評估不同國家和科研機構(gòu)科研貢獻的科學計量指標——自然指數(shù)之后,因其權(quán)威性和科學性,迅速引起了學術(shù)界和媒體界的廣泛關(guān)注。我國近年來科研實力的迅猛進步,自然指數(shù)指標評估體現(xiàn)明顯,2020年發(fā)布的最新自然指數(shù)排行顯示,我國是全球高質(zhì)量科研論