南昌市水系格局空间演变规律研究  

Study on the Spatial Evolution Patterns of Water Systems in Nanchang City

作　　者：郑湑杰 石莎[2] 于梅丽 斯静 Zheng Xuje;Shi Sha;Yu Meli;Si Jing(Yaohu College,Nanchang Institute of Technology,Nanchang 330099,Jiangxi;Hydraulic Engineering Institute,Nanchang Institute of Technology,Nanchang,Nanchang 330099,Jiangxi)

机构地区：[1]南昌工程学院瑶湖学院,江西南昌330099 [2]南昌工程学院水利工程学院,江西南昌330099

出　　处：《陕西水利》2025年第2期1-3,7,共4页Shaanxi Water Resources

基　　金：2021年国家大学生创新创业训练计划项目(202111319005);江西省水利科技项目(202325ZDKT06)。

摘　　要：当前水系空间演变规律及人类活动对水系演变的影响仍不清楚,分析河流发育规律,揭示水系的自然发育受河流能量供应限制的普遍规律具有重要意义。应用GIS技术结合指标分析法对南昌市山地丘陵区和城区的实际水系与DEM提取水系就河网密度、几何结构和盒维数进行对比分析,研究发现无论山地丘陵区还是城区,DEM提取水系的密度均明显大于实际水系;山地丘陵区DEM提取水系与实际水系的几何结构基本一致,但对城区二者的几何结构存在较为明显的差异;城区水系盒维数明显高于山地丘陵区水系,城区和山地丘陵区水系的实际水系盒维数均高于DEM提取水系。该研究成果可为水系规划等相关建设提供一定的借鉴。The spatial evolution patterns of water systems and the impact of human activities on these patterns are not yet fully understood.Analyzing the development rules of rivers and revealing the universal laws governing the natural development of water systems,which is constrained by river energy supply,holds significant importance.This study employs GIS technology combined with an index analysis method to compare the actual water systems with those extracted from DEM data in both the mountainous-hilly areas and urban areas of Nanchang City,focusing on network density,geometric structure,and box-counting dimension.The research findings indicate that,regardless of whether in mountainous-hilly areas or urban areas,the density of water systems extracted from DEM is significantly higher than that of actual water systems.In mountainous-hilly areas,the geometric structures of DEM-extracted water systems are basically consistent with those of actual water systems,whereas there are noticeable differences in the geometric structures between the two in urban areas.The box-counting dimension of urban water systems is markedly higher than that of mountainous-hilly area water systems,and the box-counting dimensions of actual water systems in both urban and mountainous-hilly areas are higher than those of DEM-extracted water systems.These research findings can provide valuable references for water system planning and related constructions.

关 键 词：水系格局 指标分析法 河网密度 几何结构 盒维数 

分 类 号：TV213.4[水利工程—水文学及水资源]