Reservoirs represent a specific environmental component in many parts of the Earth, especially where water supply is limited. As is the case of the Moldavian hilly area, due to its dryness, the inhabitants created an extensive network of reservoirs since the medieval period, in the proximity of the settlement network. Over time, many dams were abandoned, while others have been relocated with impressive dynamics at a historical scale. In this paper, by analyzing old maps, LiDAR high-res DEMs, ERT surveys, and sediments, we have reconstructed the reservoir network's expansion in the last century at a regional scale and investigated the main geomorphologic characteristics of dams and associated landforms. In Jijia catchment (3386 km²) we found a total number of 1351 dams, of which 832 abandoned. 495 reservoirs were recognized on different topo maps dating from the 20th century, while 337 have been identified on DEMs. Two reservoirs were investigated in detail by field surveys, ERT surveys, profile digging, sediment analysis, and micro-sedimentological study, confirming lacustrine deposits according to the topographic reconstructions based on high-resolution LiDAR DEMs. These sedimentary lacustrine archives can substantially contribute to detailed paleoclimatic, paleohydrologic, and paleovegetation reconstruction in the study area.

水库是地球许多地方的特定环境组成部分，尤其是在供水有限的地方。与摩尔达维亚丘陵地区一样，由于其干燥，自中世纪以来，居民在定居网络附近建立了广泛的水库网络。随着时间的流逝，许多水坝被废弃，而其他水坝则以历史规模令人印象深刻的动态进行了重新安置。本文通过分析旧地图，LiDAR高分辨率DEM，ERT调查和沉积物，在区域规模上重建了上个世纪的水库网络扩展，并研究了大坝和相关地貌的主要地貌特征。在集嘉流域（3386 km ²），我们发现共有1351座水坝，其中832处被废弃。在20世纪的不同地形图上识别出495个储层，而在DEM上已识别出337个。通过实地调查，ERT调查，剖面挖掘，沉积物分析和微观沉积学研究，对两个储层进行了详细调查，并根据基于高分辨率LiDAR DEM的地形重建确定了湖相沉积物。这些沉积湖相档案可以为研究区域的详细古气候，古水文和古植被重建做出重要贡献。