Correlation between Spatial-Temporal Variation in Landscape Patterns and Surface Water Quality: A Case Study in the Yi River Watershed, China
| Autor: | Lyuyi Liu, Ziqi Bian, Shengyan Ding |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Pollution 010504 meteorology & atmospheric sciences media_common.quotation_subject Urban area Spatial distribution lcsh:Technology 010603 evolutionary biology 01 natural sciences lcsh:Chemistry Yi River watershed Surface water quality General Materials Science landscape pattern China lcsh:QH301-705.5 Instrumentation 0105 earth and related environmental sciences media_common Fluid Flow and Transfer Processes Hydrology geography geography.geographical_feature_category correlating relationship lcsh:T Process Chemistry and Technology Chemical oxygen demand General Engineering Sampling (statistics) lcsh:QC1-999 Computer Science Applications lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Sustainability Environmental science lcsh:Engineering (General). Civil engineering (General) surface water quality lcsh:Physics |
| Zdroj: | Applied Sciences, Vol 9, Iss 6, p 1053 (2019) Applied Sciences Volume 9 Issue 6 |
| ISSN: | 2076-3417 |
| Popis: | The evidence for a correlation between landscape patterns and surface water quality is still weak. We chose the Yi River watershed in China as a study area. We selected and determined the chemical oxygen demand, ammonia nitrogen, total phosphorus, dissolved oxygen, and electric conductivity to represent the surface water quality. We analyzed the spatial distribution of the surface water quality. Buffer zones with five different radii were built around each sampling site to analyze landscape patterns on different scales. A correlation analysis was completed to examine the influencing rules and the response mechanisms between landscape patterns and surface water quality indicators. The results show that: (1) Different landscape composition types impact the surface water quality differently and increasing the area of forest land can effectively reduce non-point source pollution, (2) an increase in urban area may threaten the surface water quality, and (3) landscape compositional change has a greater influence on surface water quality compared to landscape configurational change. This study provides a scientific foundation for the spatial development of watersheds and outlines a strategy for improving the sustainability of surface water quality and the surrounding environment. |
| Databáze: | OpenAIRE |
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