近30 a基本农田领域研究态势的可视化分析

论文通过收集"基本农田"为关键词的537篇检索文献,建立关键词共现关系聚类图谱与时区图谱,以Citespace可视化分析法分析近30 a(1986—2015年)中国基本农田领域研究的发展态势。研究结果表明:1)基本农田领域的研究聚类集中在基本农田保护、评价、划定以及建设等4个领域,研究内容与方法侧重点不同;2)基本农田研究内涵及内容体系丰富,具有明显的时代性特征,并且具有明显的地域差异性和时间变异性;3)基本农田研究还存在一定的共性问题,一是基本农田划定与评价指标体系过于笼统,评价体系缺乏协调性,二是缺少各级别的基金资助与支持。研究建议:基本农田评价与划定标准体系要考虑区域特征与需求;基本农田研究要适应土地利用规划及土地整治等国家战略要求;同时,基本农田研究应是一项科学问题,要发展成为国家自然基金等资助的重要检索关键词与申报领域。

Visual Analysis of Research Situation in the Basic Farmland Field from 1986 to 2015

The purpose of this study is to visually analyze the trend of research in the field of basic farmland research in China during recent 30 years (1986-2015) with clustering map of keywords co-occurrence and time zone map of co-citation. Citespace software was employed to visually analyze 537 literatures collected by searching keyword of “basic farmland”. The results show that: 1) The research of basic farmland focused on four fields of protection, evaluation, demarcation and construction of basic farmland which involve different contents and methods. The basic farmland protection study includes the quality, quantity, environment, protection policy and dynamic monitoring of basic farmland. The research of basic farmland evaluation deals with suitability assessment and quality evaluation of basic farmland. The basic farmland demarcation concerns with theories and techniques of demarcation. The basic farmland construction study deals with zoning, timing sequence, standard and models of basic farmland construction. 2) There were rich and various connotation and contents of basic farmland study, which had epochal characteristics, and the research had characteristics of regional difference and temporal variability. The research scales included provincial scale, city and county scale. The basic farmland research can be divided into three stages: the research emphasized on quantity of basic farmland protection in the initial stage; the quality and quantity protection were equally important in the second stage; and the ecological conditions were integrated in the research of the basic farmland in the recent stage. 3) The research of basic farmland still had some common problems, including indistinct evaluation index, lack of coordination of the evaluation system, and need for fund support. It is concluded that the evaluation and demarcation of farmland should take into consideration of regional features and demands. The research of basic farmland should adapt to national strategic requirements, such as land use planning and consolidation. Lastly, the research of basic farmland is a scientific problem and should be developed to an important search keyword and research field in research fund systems, such as NFSC.