Spatial Effects of Urban-Rural Ditch Connectivity Gradient Changes on Water Quality to Support Ditch Optimization and Management
Spatial Effects of Urban-Rural Ditch Connectivity Gradient Changes on Water Quality to Support Ditch Optimization and Management
复制标题
城乡沟渠连通梯度变化对水质的空间影响支持沟渠优化和管理
DOI：
10.3390/su13158329
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发表时间：
2021-07
期刊：
影响因子：
3.9
通讯作者：
Liu Hongyu
中科院分区：
文献类型：
--
作者：
Qiu Chunqi;Li Yufeng;Wright Alan L.;Wang Cheng;Xu Jiayi;Zhou Shiwei;Huang Wanchun;Wu Yanhui;Zhang Yinglei;Liu Hongyu
Ditch networks play crucial roles in regulating water fluxes with their surroundings. The connectivity of ditches can have great impacts on nutrient migration and transformations. However, connectivity patterns related to ditch networks have rarely been studied, especially the relationships with water quality assessed through spatial analysis. This paper considered ditch connectivity and water quality indicators comprehensively, using spatial autocorrelation and geographically weighted regression (GWR) models, to analyze the impact of ditch connectivity on water quality from urban to rural gradients. The results suggested that water quality in rural areas and towns was better than in suburbs and transition zones, and the different areas exhibited variable spatial ditch connectivity. The Moran’s I index of the connectivity indicators showed the clustering state of spatial distribution, with ditch connectivity explaining 61.06% of changes in water quality. The circularity and network connectivity of the ditches had the most influence on water quality. However, the degree of influence varied with region. Circularity had the greatest impact on water quality in urban areas, and network connectivity had the greatest impact on water quality in township areas. Therefore, future water improvement projects, based on ditch optimization and management, need to consider the more related influencing factors and their spatial differences.
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DOI：
10.1111/1752-1688.12842
发表时间：
2020-04
期刊：
JAWRA Journal of the American Water Resources Association
影响因子：
--
作者：
A. Lutgen;G. Jiang;N. Sienkiewicz;K. Mattern;J. Kan;S. Inamdar
通讯作者：
A. Lutgen;G. Jiang;N. Sienkiewicz;K. Mattern;J. Kan;S. Inamdar
影响因子：
2
作者：
V. Peršić;J. Horvatić
通讯作者：
V. Peršić;J. Horvatić
影响因子：
8.7
作者：
B. Cui;Chongfang Wang;Wendong Tao;Zheyuan You
通讯作者：
B. Cui;Chongfang Wang;Wendong Tao;Zheyuan You
影响因子：
3.7
作者：
T. Marara;L. Palamuleni
通讯作者：
T. Marara;L. Palamuleni
DOI：
10.3969/j.issn.10005641.2015.03.015
发表时间：
2015-05
期刊：
Journal of East China Normal University
影响因子：
--
作者：
Shen Jie;Zhao Jun;Shang Zhao-yi
通讯作者：
Shen Jie;Zhao Jun;Shang Zhao-yi