旧地籍图的应用评估与门户网站开发--西班牙的实践

Evaluating the Use of Old Cadastral Maps

社会对西班牙地籍总局所藏旧地籍图一直有很大需求。2012年,该机构决定从可用信息类型、存藏位置和状态几方面进行初步编目。随后,为评估地籍图的潜在用途而对这份目录进行审查,以调查这些地图是否能提供地理参照并在地理门户网站中发布。几年后,为更新这份编目(扩展字段使图片更加清晰、同质,更容易被软件处理),西班牙地籍总局向地产边界领域的技术专家们发放调查问卷,随后得出的主要结论为旧地籍图发挥着重要功用。支持更新地图编目的技术专家和法律专家们十分关注地籍图中蕴含的信息。旧地籍图数字化及在简单易用的地理门户中免费提供线上资源十分关键,图中信息有助于解决地产边界纠纷等问题。鉴于旧地籍图十分珍贵,为保护与发布这些地图而投入财力、人力至关重要。

The old cadastral maps of the Spanish General Directorate for Cadastre(DGC)have always been in great demand.It was decided in 2012 to make an initial inventory of these maps with the type of information available,physical location,and condition.Subsequently,to evaluate their possible use,the inventory was examined to investigate whether these maps could be geographically referenced and made available on a geoportal.Several years later,it was determined that the inventory needed to be updated with a series of improvements(expanding the fields so that they become clearer,homogeneous,and more easily handled by software).A questionnaire was issued to technical specialists on property boundaries.As a principal conclusion we can highlight that the use of old cadastral maps in Spain is of great importance.The information on these maps is widely demanded by technical and legal experts who consider that an update and revision of the DGC inventory is essential.It is crucial that old cadastral maps are digitised and made available online,preferably free of charge and through an easy-to-use geoportal.The information on these maps helps to resolve property boundary disputes and has many other uses.Investment in the economic and human resources needed to preserve and publish these maps is essential given their great value.