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increased. China and Japan have the highest similarity degree of international cooperation relationship, followed by China and South Korea, India, and close cooperation among all the countries has achieved in the academic field of environmental science. Key words: environmental science; international scientific cooperation; SCI / SSCI database 1 引言 隨著經(jīng)濟全球化進(jìn)程的不斷加快,科學(xué)技術(shù)作為第一生產(chǎn)力,其全球化發(fā)展成為必然趨勢。在國際科研合作迅速發(fā)展的大環(huán)境下,了解一個國家與其他國家科研合作的現(xiàn)狀,有助于促進(jìn)該國國際學(xué)術(shù)交流與合作進(jìn)一步健康有序地開展。環(huán)境污染是現(xiàn)代人類所面臨的最嚴(yán)峻的問題之一。20世紀(jì)60年代以后,隨著工業(yè)化的擴展,垃圾的大量產(chǎn)生、耕