土地污染文献定量分析

为了定量探究土地污染研究现状及其时空格局，采用文献计量统计法，从文献数量、作者、研究机构、期刊及内容等角度对1957-2015年《中国期刊全文数据库》收录的土地污染文献进行综合分析。共涉及13 077篇文献、15 714位作者、5 663个研究机构、2 141种期刊。结果表明：土地污染文献数量增长符合指数模型，土地污染研究已进入高速发展阶段；核心作者群已经形成，核心作者177人；土地污染核心研究机构较少，高等院校和科研院所是土地污染研究的核心力量，发文量占总发文量的92.80%；该领域的核心期刊群已经形成，核心区期刊中《农业环境科学学报》发文量为172篇，居榜首，《安徽农业科学》发文量为115篇，位居第二；从关键字分析来看，重金属污染和土地污染修复仍是目前研究的热点，生物修复技术在土地污染修复中具有重要地位。

Quantitative analysis of land pollution literature

In order to explore the situation and spatial-temporal pattern of the land pollution research,from the perspective of document quantity,authors,research institutions,journals and contents,by using the method of bibliometric,this paper analyzed comprehensively the documents of land pollution between 1957 and 2015 from CNKI Database. There were in total 13077 documents,15714 authors,5663 research institutions,and 2141 journals. The results show that the document quantity presented exponential increase,indicating that research on land pollution had entered the phase of rapid development. The core author group had formed,with the number of 177. The core research agencies were few,and universities and research institutions were the core strength which accounted for 92.80% of the total documents. The core journal group had formed,with the Journal of Agro-Environment Science ranking No.1 with 172 documents,followed by Journal of An-Hui Agricultural Science with 115 documents. From the perspective of keyword,the research hot-spot was still on the heavy metal pollution and remediation of contaminated soil where bioremediation played an important role.