GIS在生态环境领域研究热点的可视化分析
2020-08-11谢连科张永臧玉魏
谢连科 张永 臧玉魏



摘要:以GIS和生态环境领域为主题,检索CNKI数据库中1999—2018年的期刊论文作为数据源,利用科学知识图谱的方法对该领域的研究热点和研究趋势进行可视化分析。研究发现在生态环境与GIS结合领域有少数作者存在合作关系,大部分学者都是进行独立研究,互相之间关联性不强;通过关键词共现分析,发现学者们主要进行生态环境安全、可持续发展、生态敏感性等方面的研究;突变词监测则展示了GIS在生态环境领域近20年的研究热点转换,经历了从以地理信息技术为主、生态环境为辅到关注水土流失等可持续发展,再到以生态系统评价为重心的转变过程。
关键词:GIS;生态环境;可视化;研究热点;科学知识图谱
Abstract: Taking GIS and ecological environment field as the theme, the 1999—2018 periodical papers in the CNKI database are retrieved as the data source, and the method of mapping knowledge domain is used to visually analyze the research hotspots and research trends in this field. The study found that in the field of the combination of ecological environment and GIS, there are a few scholars who have a cooperative relationship. Most scholars conduct independent research and are not closely related to each other. Through keyword co-occurrence analysis, the study found that scholars mainly conduct research on ecological environment security, sustainable development, and ecological sensitivity. The monitoring of mutant words demonstrates the transformation of research hotspots of GIS in the field of ecological environment in the past 20 years. It has experienced sustainable development ranging from geographic information technology as a supplement to ecological environment to the focus on soil erosion, to the focus on ecosystem evaluation process of transformation.
Key words: GIS; ecological environment; visualization; research hotspot; mapping knowledge domain
近年来随着经济的发展和生态环境保护政策的不断完善,生态环境保护逐渐走进大众视野,引起了广大学者的广泛关注。地理信息系统(Geographic information system,简称GIS)作为一门研究空间信息的全新技术,在研究生态环境资源调查和动态监测等方面起着不可忽视的作用。使用GIS技术对环境质量进行评价,具有成本低、实时更新等优点[1],为研究區域生态环境变化提供了有效手段[2]。随着生态环境在国家发展中的重要性增强,掌握GIS在生态环境研究领域的发展形势必不可少。在学科领域代表方面,期刊论文代表了领域内的发展情况和最新的前沿动态[3,4]。近年来GIS在生态环境领域出现了越来越多的研究成果,通过对这些研究成果的梳理总结,可以了解不同时期的研究热点和研究趋势。……
