中古时期肥水与巢湖流域连通问题考辨

本文重点讨论在中古时期是否存在沟通肥水、巢湖两流域河道(包括自然与人工)的问题。《水经注》认为存在,而且不止一条。后人踵其说而不加考察,最终积非成是。本文在仔细梳理历代正史、地理书、古地图和方志的基础上,结合前人研究成果、实地考察资料,主要从历史文献记载和实际地理状况两方面进行考证分析,对自《水经注》以来的这种说法加以否定。本文认为在中古时期,肥水、巢湖两流域始终是没能连通的。     

The Integration of VHR Satellite Imagery,GPR Survey and Boring for Archaeological Prospection at the Longcheng Site in Anhui Province,China

This paper is focused on the joint use of non‐invasive and minimal intervention techniques for supporting archaeological prospection. Very high resolution (VHR) satellite imagery analysis and ground‐penetrating radar (GPR) and boring surveys were integrated for the study of the Longcheng site, located near Hefei city in Anhui Province, China, to test their effectiveness and efficiency in prospecting archaeological remains and evaluating their degree of preservation. First, target locations of potential archaeological structures were identified on a WorldView‐2 (WV‐2) satellite image through spatial and radiometric enhancement, interpretation and object‐oriented classification. Second, archaeological features extracted from the WV‐2 imagery were further investigated by a GPR survey that provided detailed cross‐checking information about buried remains. Finally, a subsequent boring survey was conducted across those prospective archaeological structures in order to map the stratigraphic sequences on the basis of colour, compactness and the inclusions contained in the soil, and then to test their correspondence with the GPR data. The boring led to detailed confirmation of the results produced by the remote sensing analyses and GPR surveys, as well as the discovery of datable artefacts. On the basis of all the integrated data, the preliminary layout and structure of the Longcheng site was reconstructed in GIS. Furthermore, the widths, lengths, heights and burial depths of these buried archaeological structures were estimated in detail.     

长江巢湖段岸线资源评价与港口发展研究

本文首先运用遥感与GIS技术,选取岸线前沿水深、岸线稳定性、岸前航道水域宽度和后方陆域场地宽度4项指标对安徽巢湖沿江岸线资源进行了综合评价,评价结果表明安徽长江巢湖段一、二级岸线比例高,适合建港和发展工业、仓储的岸线资源丰富、发展潜力大;其次在GIS平台上摸清了岸线资源的利用情况,确定了各级岸线资源的空间分布与功能划分。在此研究基础上,提出巢湖沿江港口建设的总体功能定位与空间布局。最后给出了长江巢湖段岸线开发与港口发展的对策与建议。     

明清时期徽商在巢湖流域的经营活动

明清时期,由于巢湖流域农业的发展以及当地人以农为本、少事商贾习俗的影响,徽商遍布巢湖流域大小城镇和集市,在流域内从事商业经营,并形成了较为明显的经营特色.徽商给巢湖流域的市镇发展带来了生机和活力,对于沟通城乡市场,使之成为一个统一的整体,发挥了重要作用.