地学数据的分形插值与成图

本文将分形几何学的思想和方法引进对地学数据的插值处理与计算机成图的研究中，建立了适合于具有随机形特征的地学数据的“局部分数布朗场”数学模型，在讨论和分析了Ｖｏｓｓ提出的“逐次随机添加”与Ｂａｒｎｓｌｅｙ提出的“分形插值函数”这两种可用于分形插值法，并将它们应用到对地貌，化探，物探等地学数据进行插值，网格化和计算机成图上。     

井孔综合成果表自动制作系统

简要介绍了井孔综合成果表自动制作系统－ＷＧＳ的总体设计情况,阐述了ＷＧＳ的结构、功能与特色,并给出了该系统在南通市井孔资料卡片管理上的一个应用实例。该系统采用矢量汉字技术,支持ＤＸＦ和ＰＬＴ两种图形文件存贮格式,支持多种类型打印机,并具有自动选择绘图比例、容错能力强,对硬件和软件要求低等优良性能,是一个专业性、实用性较强的绘图软件。     

Research hotspots and trends of groundwater and ecology studies: Based on a bibliometric approach

Groundwater, as a critical component of the hydrological cycle, is essential for sustainable ecosystem development. To clarify the current status of domestic and overseas research, and to identify hotspots, frontier and future trends of groundwater and ecology research, this study utilizes bibliometric methods and CiteSpace software to examine relevant published articles in the Web of Science (WOS) and CNKI databases from 1978 to 2022. Specifically, this study analyzes (1) the annual number of published papers; (2) research institutions; (3) keywords; and (4) evolution of research hotspots. The findings reveal that the United States, China, and Germany are the top three countries in groundwater and ecology research. International research hotspots mainly focus on microbial ecology, climate change, groundwater-surface water interactions in the hyporheic zone, biodiversity, and submarine groundwater discharge, while domestic research hotspots mainly focus on ecological water conveyance, ecological flow, groundwater development and utilization, groundwater pollution, and groundwater and ecological protection. Both domestic and international research hotspots exhibit interdisciplinary features with diverse research objects and assessment methods. Future research in this area is expected to focus on topics such as contamination, groundwater quality, framework, mechanism, spatial distribution, and dissolved organic matter. Additionally, the study of ecological recharge, ecological flow, ecological protection, water intake and use will continue to be the hot topics domestically.