安徽省用水网络管理与关键区域界定

基于2005~2016年安徽省16个城市的用水量数据，利用社会网络分析（SNA）方法刻画了区域用水空间关联的网络结构特征，并进一步对水资源管理重点区域进行了筛选。研究发现：安徽省域内的用水联系紧密，不存在孤立的城市节点，样本考察期内，区域用水空间关联的网络密度有所下降，但呈现为等级森严的网络结构；个体网络特征表现出明显的“极化效应”和“马太效应”，合肥、马鞍山和芜湖具有较高的度数中心度、中间中心度和接近中心度，处于网络中的核心位置，主导着关联网络中水资源的流动和溢出；目前安徽省区域用水网络处于多核心阶段，且由初期的合肥和马鞍山-芜湖-铜陵双核驱动模式逐步演变成以阜阳、合肥和马鞍山-芜湖-铜陵为三大增长极的空间稳定格局。

Water Network Management and Key Area Definition in Anhui Province

Based on the data of water consumption in 16 cities of Anhui province from 2005 to 2016, the method of Social Network Analysis（SNA) is introduced to reveal the spatial correlation network structure of regional water use, and then the key areas of water management can be screened. The results show: the spatial linkages among regional water use are very close, there is no isolated urban node in the entire sample cities. During the investigated period, the network density declined slightly with a hierarchical network structure. The individual network characteristics show significant "polarization effect" and "Matthew effect". Hefei, Wuhu and Maanshan are located in the center of the network with high degree, betweenness centrality and closeness centrality, which dominate the water flow and overflow in the spatial network. At present, the regional water network in Anhui province is in the multi-core stage, which has evolved from the initial period with dual-core driving mode consists of Hefei and Maanshan-Wuhu-Tongling to the stable spatial pattern of three growth poles of Fuyang, Hefei and Maanshan-Wuhu-Tongling.