Satellite-derived land use changes along the Xin’an River watershed for supporting water quality investigation for potential fishing grounds in Qiandao Lake, China

This study mapped the land use and land cover of the catchment area of the Peixe-Boi River watershed, in northeast Pará, in order to identify conflicts of land use in the permanent preservation areas, and to relate them to water quality. We used LISS-3 sensor imagery from the Resourcesat satellite with a spatial resolution of 23.5 m for supervised classification of land use and land cover based on 22 training samples. Water quality was determined based on 28 sampling points in drainage network. The relationship between human disturbance and water quality was analyzed based on observations of land use changes using satellite imagery and in situ collection of water samples. The results show that 46% of the permanent preservation areas have conflicted uses, especially with respect to urban squatters, exposed soil and, most notably, pasture, with over 84 % of the area in conflict. Critical levels of dissolved oxygen reaching 2.14 mg L-1 and pH of 5.12 were observed in some sampling points. These values are below the fresh water standards set by Resolution 357/05 of CONAMA. The poorest water quality may be related to irregular use and occupation of areas within the permanent preservation areas. There is therefore an urgent need to develop a plan for the sustainable use and occupation of catchment area land in the Peixe-Boi River watershed in order to restore the environment and improve water quality.

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Modelling the impacts of climate and land use changes on water quality in the Guadiana basin and the adjacent coastal area

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.146034 ◽

2021 ◽

Vol 776 ◽

pp. 146034

Author(s):

Cira Buonocore ◽

Juan Jesús Gomiz Pascual ◽

María Luisa Pérez Cayeiro ◽

Rafael Mañanes Salinas ◽

Miguel Bruno Mejías

Keyword(s):

Water Quality ◽

Land Use ◽

Coastal Area ◽

Land Use Changes ◽

Guadiana Basin ◽

Adjacent Coastal Area

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Simulation of water quality with the application of system dynamics model for population and land-use changes

Paddy and Water Environment ◽

10.1007/s10333-005-0002-x ◽

2005 ◽

Vol 3 (2) ◽

pp. 103-109 ◽

Cited By ~ 5

Author(s):

Tasuku Kato

Keyword(s):

Water Quality ◽

Land Use ◽

System Dynamics ◽

Land Use Changes ◽

System Dynamics Model ◽

Dynamics Model

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Impacto do uso e ocupação da terra na qualidade da água da bacia hidrográfica do rio Nhapindazal, Irati (PR) / Impact of land use and occupation on the water quality of Nhapindazal river watershed, Irati, (PR)

Revista Ambiência ◽

10.5777/ambiencia.2012.05.04 ◽

2012 ◽

Vol 8 (3) ◽

pp. 845-858 ◽

Cited By ~ 2

Author(s):

Augusto Tomazzoni Lubenow ◽

◽

Paulo Costa de Oliveira Filho ◽

Carlos Magno de Sousa Vidal ◽

Grasiele Soares Cavallini ◽

...

Keyword(s):

Water Quality ◽

Land Use ◽

River Watershed

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The effect of land-use change on river watershed quality (case study: Cimahi Watershed, West Java, Indonesia)

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/933/1/012010 ◽

2021 ◽

Vol 933 (1) ◽

pp. 012010

Author(s):

S A Nurhayati ◽

M Marselina ◽

A Sabar

Keyword(s):

Water Quality ◽

Land Use ◽

Land Use Change ◽

Pearson Correlation ◽

Land Use Changes ◽

Quality Parameters ◽

Water Quality Parameters ◽

Watershed Area ◽

Watershed Land Use ◽

Main River

Abstract Increasing population growth is one of the impacts of the growth of a city or district in an area. This also happened in the Cimahi watershed area. As the population grows, so does the need for land which increases the land-use change in the Cimahi watershed. Land-use changes will affect the surrounding environment and one of them is the river, especially river water quality. As a watershed area, there is one main river that is the source of life as well as the Cimahi watershed, whose main river is the Cimahi River. The purpose of this study was calculated the relationship between land-use change in the Cimahi watershed and the water quality parameters of the Cimahi River. The correlation between the two was calculated using Pearson correlation. Water quality parameters can be seen based on BOD and DO values. BOD and DO values are the opposite because good water quality has high DO values and low BOD values. The correlation between land-use change and BOD was 0.328 is in the area of settlements area. In contrast, to DO values, an increase in settlements/industrial zones will further reduce DO values so that both have a negative correlation, which is indicated by a value of -0,535. The correlation between settlements with pH and temperature values is 0.664 and 0.812. While the correlation between settlements with TSS and TDS values are 0.333 and 0.529, respectively. In this study, it can be seen that there is a relationship between the decline in water quality and changes in land use.

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Effect of Land Use Changes on Water Quality in an Ephemeral Coastal Plain: Khambhat City, Gujarat, India

Water ◽

10.3390/w11040724 ◽

2019 ◽

Vol 11 (4) ◽

pp. 724 ◽

Cited By ~ 5

Author(s):

Pankaj Kumar ◽

Rajarshi Dasgupta ◽

Brian Johnson ◽

Chitresh Saraswat ◽

Mrittika Basu ◽

...

Keyword(s):

Water Quality ◽

Land Use ◽

Groundwater Quality ◽

Coastal Plain ◽

Land Use Changes ◽

Rapid Expansion ◽

Barren Land ◽

Bare Land ◽

The Impact ◽

Use Categories

Rapid changes in land use and land cover pattern have exerted an irreversible change on different natural resources, and water resources in particular, throughout the world. Khambhat City, located in the Western coastal plain of India, is witnessing a rapid expansion of human settlements, as well as agricultural and industrial activities. This development has led to a massive increase in groundwater use (the only source of potable water in the area), brought about significant changes to land management practices (e.g., increased fertilizer use), and resulted in much greater amounts of household and industrial waste. To better understand the impacts of this development on the local groundwater, this study investigated the relationship between groundwater quality change and land use change over the 2001–2011 period; a time during which rapid development occurred. Water quality measurements from 66 groundwater sampling wells were analyzed for the years 2001 and 2011, and two water quality indicators (NO3− and Cl− concentration) were mapped and correlated against the changes in land use. Our results indicated that the groundwater quality has deteriorated, with both nitrate (NO3−) and chloride (Cl−) levels being elevated significantly. Contour maps of NO3− and Cl− were compared with the land use maps for 2001 and 2011, respectively, to identify the impact of land use changes on water quality. Zonal statistics suggested that conversion from barren land to agricultural land had the most significant negative impact on water quality, demonstrating a positive correlation with accelerated levels of both NO3− and Cl−. The amount of influence of the different land use categories on NO3− increase was, in order, agriculture > bare land > lake > marshland > built-up > river. Whereas, for higher concentration of Cl− in the groundwater, the order of influence of the different land use categories was marshland > built-up > agriculture > bare land > lake > river. This study will help policy planners and decision makers to understand the trend of groundwater development and hence to take timely mitigation measures for its sustainable management.

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Response of Water Quality to Landscape Patterns in an Urbanized Watershed in Hangzhou, China

Sustainability ◽

10.3390/su12145500 ◽

2020 ◽

Vol 12 (14) ◽

pp. 5500 ◽

Cited By ~ 1

Author(s):

Yu Song ◽

Xiaodong Song ◽

Guofan Shao

Keyword(s):

Water Pollution ◽

Water Quality ◽

Land Use ◽

Stream Water ◽

Land Use Changes ◽

Landscape Patterns ◽

Quality Data ◽

Stream Water Quality ◽

Water Quality Data ◽

Algae Biomass

Intense human activities and drastic land use changes in rapidly urbanized areas may cause serious water quality degradation. In this study, we explored the effects of land use on water quality from a landscape perspective. We took a rapidly urbanized area in Hangzhou City, China, as a case study, and collected stream water quality data and algae biomass in a field campaign. The results showed that built-up lands had negative effects on water quality and were the primary cause of stream water pollution. The concentration of total phosphorus significantly correlated with the areas of residential, industrial, road, and urban greenspace, and the concentration of chlorophyll a also significantly correlated with the areas of these land uses, except residential land. At a landscape level, the correlation analysis showed that the landscape indices, e.g., dominance, shape complexity, fragmentation, aggregation, and diversity, all had significant correlations with water quality parameters. From the perspective of land use, the redundancy analysis results showed that the percentages of variation in water quality explained by the built-up, forest and wetland, cropland, and bareland decreased in turn. The spatial composition of the built-up lands was the main factor causing stream water pollution, while the shape complexities of the forest and wetland patches were negatively correlated with stream water pollution.

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