Impact of land use on water quality in buffer zones at different scales in the Poyang Lake, middle reaches of the Yangtze River basin

Wang, Wenyu; Yang, Peng; Xia, Jun; Huang, He Qing; Li, Jiang

doi:10.1016/j.scitotenv.2023.165161

Cited by 20 publications

(2 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The influence of different buffer sizes is an important aspect to be considered 24 , 60 , 61 . In this study, the relationship between water quality and LULC patterns in the Suquía River was assessed at local and regional buffer scales.…”

Section: Discussionmentioning

confidence: 99%

The multiscale nexus among land use-land cover changes and water quality in the Suquía River Basin, a semi-arid region of Argentina

Paná,

Marinelli,

Bonansea

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Agricultural intensification and urban sprawl have led to significant alterations in riverscapes, and one of the critical consequences is the deterioration of water quality with significant implications for public health. Therefore, the objectives of this study were the assessment of the water quality of the Suquía River, the assessment of LULC change at different spatial scales, and the analysis of the potential seasonal correlation among LULC change and Water Quality Index (WQI). The Sample Sites (SS) 1 and 2 before Cordoba city had the highest WQI values while from SS3 the WQI decreased, with the lowest WQI close to the wastewater treatment plant (SS7) after Cordoba city. From SS8 in a agricultural context, the WQI increases but does not reach the original values. In light of analysis carried out, the correlation between water quality variables and the different LULC classes at the local and regional scales demonstrated that WQI is negatively affected by agricultural and urban activities, while natural classes impacted positively. The spatialization of the results can help strongly in assessing and managing the diffusion of point and non-point pollution along the riverscape. The knowledge gained from this research can play a crucial role in water resources management, which supports the provision of river ecosystem services essential for the well-being of local populations.

show abstract

Section: Discussionmentioning

confidence: 99%

The multiscale nexus among land use-land cover changes and water quality in the Suquía River Basin, a semi-arid region of Argentina

Paná,

Marinelli,

Bonansea

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In the Poyang Lake wetland, the primary threat to nature conservation is the deterioration of habitat quality brought about by land use changes (Yang, Gao, et al., 2020 ; Yang, Xia, et al., 2020 ; Zhang, Liao, et al., 2023 ; Zhang, Wang, et al., 2023 ). The composition of land use emerges as a significant factor to this, and it also has a substantial impact on the lake's water quality (An et al., 2022 ; Wang et al., 2023 ). Therefore, clarifying the relevant impacts of human activities on land use and exploring the drivers of wetland habitat quality change and degradation can help rational development and environmental protection of wetlands.…”

Section: Introductionmentioning

confidence: 99%

Assessing habitat quality at Poyang Lake based on InVEST and Geodetector modeling

Yuan,

Chen,

Chen

et al. 2023

Ecology and Evolution

View full text Add to dashboard Cite

Poyang Lake is an essential natural wetland in the Yangtze River basin and plays a vital role in maintaining the ecosystem function and ecological security in the middle and lower reaches of the Yangtze River. However, the relative importance and spatial heterogeneity of the impacts of human activities and land use changes on ecological security needs to be further explored. Here, we analyzed the habitat quality level around Poyang Lake in 2022 and explored the factors of habitat quality change from a geographical perspective. The land use structure changes around the Poyang Lake basin from 2000 to 2022 were quantitatively analyzed, and then the relative importance and spatial heterogeneity of each factor on ecological security changes were investigated using geographic probes. The results show that (1) The worst quality habitat (0–0.1) consists mainly of construction land (1624.9 km2) with an area of 1634.64 km2; (2) Construction land continues to increase with the most significant change, and the dynamic land use attitude is 0.47. Grassland and mudflats have the greatest decrease. The increase in cultivated land in different periods is mainly due to the shift of water surface and forest land; (3) The drivers of habitat quality in Poyang Lake were significantly influenced by the interaction of socioeconomic factors. The explanatory power of population density interacting with the total year‐end population and population density interacting with administrative area exceeded 0.84. These values were higher than the explanatory power of each individual factor, indicating that habitat quality was primarily associated with population density, total year‐end population, and administrative area. These results suggest that human activities contribute to the degradation of wetlands around Poyang Lake. This study has significant reference value for coordinating human–land relationships in Poyang Lake, optimizing land management policy, and improving the sustainable development of cities.

show abstract

Riparian Landscape Change: A Spatial Approach for Quantifying Change and Development of a River Network Restoration Model

Stieger,

Mckenzie

2024

Environmental Management

View full text Add to dashboard Cite

Natural river landscapes can be biodiversity hotspots but are one of the most human altered ecosystems with habitats significantly damaged around the world, and a third of fish populations threatened with extinction. While riparian ecosystems have been negatively altered by anthropogenic activities, effective planning and restoration strategies can reverse negative impacts by improving habitat quality. However, restoring rivers requires appropriate data on current riparian health while also considering priorities for different stakeholders. To address this, a Geographic Information System (GIS) was used to create a new and transferable restoration priority model based on a section of the river Linth in Switzerland as a case study. The restoration priority model is founded on connectivity, river condition, national priority species and species hotspots. Landscape change of the riparian zone was analyzed using aerial imagery and landscape metrics. Almost a quarter of rivers within the study area were considered high or very high restoration priority, with many aquatic species set to benefit from restoration. From 1946 to 2019, the riparian landscape became highly fragmented due to significant growth in impervious surfaces and a concomitant loss of agricultural land. The GIS model provides a tool by which environmental agencies can manage natural features over large scales, while also planning priorities and targeting conservation strategies to the areas of greatest need.

show abstract

Impact of land use on water quality in buffer zones at different scales in the Poyang Lake, middle reaches of the Yangtze River basin

Cited by 20 publications

References 47 publications

The multiscale nexus among land use-land cover changes and water quality in the Suquía River Basin, a semi-arid region of Argentina

The multiscale nexus among land use-land cover changes and water quality in the Suquía River Basin, a semi-arid region of Argentina

Assessing habitat quality at Poyang Lake based on InVEST and Geodetector modeling

Riparian Landscape Change: A Spatial Approach for Quantifying Change and Development of a River Network Restoration Model

Contact Info

Product

Resources

About