基于最小累积阻力模型的江南水乡河网分区保护研究

河网水系是江南水乡重要的自然与历史文化遗产。但近年来，随着城市化进程的快速发展，人类活动对河网的干扰日趋严重，村镇小水体出现大面积填埋，部分地区河网结构趋于简单，非主干河道不断减少。以上海市青浦区为研究区域，采用最小累积阻力模型对河网水系分区保护问题进行探讨，以期为江南水乡风貌保护提供参考。结果显示：（1）河网水系在江南水乡具有明显的廊道效应；（2）青浦区可划分为河网特殊保育区、河网重点保护区、河网风貌保留区、河网生态建设区和河网景观恢复区5个区域，并由此提出具有针对性的水系分区保护方案；（3）最小累积阻力模型在江南水乡河网水系保护方面具有较好的适用性

ZONING OF RIVER NETWORK PROTECTION BASED ON MINIMUM CUMULATIVE RESISTANCE MODEL

River network is important natural and historical heritage.In recent years,because of rapid urban development,river network has been seriously damaged by human activities.The study area is Shanghai Qingpu District. In order to coordinate the conflict between construction land expansion and river network protection, this paper studied zoning of river network protection by applying minimum cumulative resistance model.The result are as follows.(1)River network had a significant corridor effect in south of the Yangtze River.(2)Qingpu District could be divided into five parts:river network special conservation zone,river network key protected zone,river network landscape reserve zone,river network ecological construction zone and river network landscape restoration zone.(3)Minimum cumulative resistance model had good applicability in river network protection