Journal ArticleDOI
Multiple-Scale Analysis of Water Quality Variations and Their Correlation with Land use in Highly Urbanized Taihu Basin, China.
TLDR
Forest and construction land in the 1–2 km buffer zone appeared to have a greater influence on the water quality than the buffers with smaller distance, which is beneficial toward the understanding of water quality status in highly urbanized watersheds.Abstract:
Understanding the relationship between land use and water quality at different scales is essential in the restoration and protection of water quality. On March 2014, we collected 97 samples in highly urbanized Taihu Basin and analyzed their water quality characteristics. Spatial differences in water quality were evident in sub-basins. The Hu Xi zone with the largest forest area had the best water quality among all the sub-basins. The correlation analysis indicated that the proportions of forest and construction land were significantly associated with multiple water quality variables from buffer to sub-basin scale. Farmland was significantly related to NO3–N at the sub-basin scale. The impact of landscape metrics at the sub-basin was insignificant. Forest and construction land in the 1–2 km buffer zone appeared to have a greater influence on the water quality than the buffers with smaller distance. These results are beneficial toward the understanding of water quality status in highly urbanized watersheds and provide a reference for water quality conservation and land use management in the future.read more
Citations
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Journal ArticleDOI
Spatiotemporal Characteristics of the Water Quality and Its Multiscale Relationship with Land Use in the Yangtze River Basin
TL;DR: Wang et al. as discussed by the authors analyzed the spatial and temporal variation characteristics of water quality by using the single-factor water quality identification index through statistical analysis, and the Spearman correlation analysis method was adopted to quantify the spatial-scale and temporal-scale effects of various land uses, including agricultural land (AL), forest land (FL), grassland (GL), water area (WA), and construction land (CL), on the stream water quality of dissolved oxygen (DO), chemical oxygen demand (CODMn), and ammonia (NH3-N).
Journal Article
Forest cover correlates with good biological water quality. Insights from a regional study (Wallonia, Belgium)
Delphine Brogna,Marc Dufrêne,Adrien Michez,Adrien Latli,S Joacobs,Caroline Vincke,Nicolas Dendoncker +6 more
TL;DR: This paper quantifies, at the regional scale and across five natural ecoregions of Wallonia (Belgium), the forest cover effect on biological water quality indices (based on diatoms and macroinvertebrates) at the riparian and catchment scales and suggests that riparian forests are positively linked to water quality and should therefore be preserved.
Journal ArticleDOI
Wetland Functional Area Division Method: A Correlation Analysis of Water Quality and Landscape Structure
Tianlong Liu,Xiang Ji,Yaxi Gong +2 more
TL;DR: Wang et al. as mentioned in this paper used Pearson's correlation analysis and Redundancy Analysis to quantitatively analyze the correlation between water quality environment and landscape structure, and Inverse Distance Weighting (IDW) was introduced to help study the spatial difference in water quality in different functional areas.
Journal ArticleDOI
Distinct seasonal variations of dissolved organic matter across two large freshwater lakes in China: Lability profiles and predictive modeling.
TL;DR: Wang et al. as mentioned in this paper employed a multi-stage plug-flow bioreactor and spectrofluorometric indices to characterize the seasonal variations in DOM composition and lability across Poyang Lake (PY) and Lake Taihu (TH), two large freshwater lakes in China with distinct hydrological seasonality.
Journal ArticleDOI
Water quality decreased by urbanisation and Pinus based silviculture in Southern Brazil
Camila Schaefer Martins,Enzo Luigi Crisigiovanni,Paulo Costa de Oliveira Filho,Elynton Alves do Nascimento +3 more
TL;DR: In this article , the authors compared two river basins in southern Brazil: Antas River subbasin (urban) and Faxinalzinho Stream basin (agricultural).
References
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Society: Realizing China's urban dream
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Journal ArticleDOI
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Journal ArticleDOI
Spatially varying relationships between land use and water quality across an urbanization gradient explored by geographically weighted regression.
TL;DR: In this article, the authors apply an exploratory spatial data analysis (ESDA) technique, geographically weighted regression (GWR), to analyze the spatially varying relationships between six land use and fourteen water quality indicators across watersheds with different levels of urbanization in eastern Massachusetts, USA.
Journal ArticleDOI
Ecological consequences of rapid urban expansion: Shanghai, China
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