Effects of dairying on water quality of lowland streams in Westland and Waikato

2002 ◽  
pp. 107-114 ◽  
Author(s):  
R.J. Davies-Colley ◽  
J.W. Nagels
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Clarity ◽  
High Water ◽  
Native Forest ◽  
Steady Flows ◽  
Faecal Contamination ◽  
Lowland Streams ◽  
Quality Degradation

Several New Zealand studies suggest that pastoral land use causes appreciable water quality degradation particularly in lowland streams. The water quality of eight NZ lowland streams, three near Morrinsville in the Waikato Region and five south of Hokitika in Westland, was sampled monthly for 13 months. Three of the five Westland streams are spring-fed streams on dairy-farmed alluvial plains of large rivers, and have high and steady flows and visually clear water, contrasting with two nearby reference streams in forested land which are more flow-variable and have humic-stained water. The catchments of the three Waikato streams, with the exception of a forested headwater area, are intensively grazed, mostly by dairy cows. Median conductivity, phosphorus and nitrogen concentrations, and (to a lesser extent) faecal contamination (as indicated by Escherichia coli concentrations), were all elevated in streams draining dairy pasture, often exceeding water quality guidelines. The most intensively-farmed Waikato stream (Toenepi Stream) has very high concentrations of nutrients and fairly high faecal contamination. At the other extreme, Dunlop Creek (Westland) has very low concentrations of nutrients and faecal contamination, consistent with its minimally-disturbed native forest catchment. The optical variables: humic concentration, turbidity and (inversely related) visual water clarity, show less of a pattern with land use across stream sites, apparently because of the influence of other factors, such as soil characteristics. The area-specific yields of streams in Westland dairy land were comparable with those in the Toenepi Stream, reflecting high rainfall driving runoff and leaching in Westland. However, the concentrations of contaminants mobilised by dairy farming were generally higher in Waikato than in Westland because of dilution in high water flows in the latter region. The water quality degradation of streams draining dairy land will need to be addressed by the dairy industry. Keywords: dairying, faecal contamination, nitrogen, nutrients, phosphorus, turbidity, water quality

Do abundance and percentage of dipteran larvae and Oligochaeta indicate low water quality in streams and lake littoral?

2019 ◽  
Vol 48 (4) ◽  
pp. 415-429
Author(s):  
Henn Timm ◽  
Marina Haldna
Keyword(s):  
Water Quality ◽  
High Water ◽  
High Abundance ◽  
Northern Europe ◽  
Freshwater Macroinvertebrates ◽  
Lowland Streams ◽  
Lake Littoral ◽  
Quality Of Water

Abstract The presence of chironomids and/or oligochaetes is generally considered to be an indication of poor status of freshwater. Non-chironomid dipterans show unclear trends. The abundance and percentage of these groups are rarely used as potential indicators. We attempted to determine whether these metrics reveal freshwater quality in lowland streams and lake littoral (Northern Europe, Baltic ecoregion, Estonia). The water quality was assessed based either on the water itself or on macroinvertebrates, fish, macrophytes, phytobenthos (in streams only) and/or phytoplankton (in lakes only). As expected, the high abundance and high percentage of chironomids and ceratopogonids indicated low quality of water in lakes. The high percentage of chironomids indicated low water quality also in streams. The high percentage of oligochaetes indicated low water quality in lakes. However, their high abundance (but not the percentage) was unexpectedly a symptom of high water quality in streams and to a lesser extent in lakes. In these cases, oligochaetes were represented by rheophilic, rather than saprophilic species. The abundance of simuliids (but not the percentage) and the richness of dipteran families indicated high water quality in streams. We suggest that the obtained results will allow better use of the indicative potential of freshwater macroinvertebrates.

scholarly journals The consequences for stream water quality of long-term changes in landscape patterns: Implications for land use management and policies

2021 ◽  
Vol 109 ◽  
pp. 105679
Author(s):  
António Carlos Pinheiro Fernandes ◽  
Lisa Maria de Oliveira Martins ◽  
Fernando António Leal Pacheco ◽  
Luís Filipe Sanches Fernandes
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Stream Water ◽  
Landscape Patterns ◽  
Land Use Management ◽  
Stream Water Quality ◽  
Long Term Changes

Water quality of small seasonal wetlands in the Piedmont ecoregion, South Carolina, USA: Effects of land use and hydrological connectivity

2015 ◽  
Vol 73 ◽  
pp. 98-108 ◽  
Author(s):  
Xubiao Yu ◽  
Joanna Hawley-Howard ◽  
Amber L. Pitt ◽  
Jun-Jian Wang ◽  
Robert F. Baldwin ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
South Carolina ◽  
Hydrological Connectivity ◽  
Seasonal Wetlands ◽  
Effects Of Land Use

scholarly journals Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil

2016 ◽  
Vol 46 (4) ◽  
pp. 626-631
Author(s):  
Tiago Miguel Jarek ◽  
Jorge Luiz Moretti de Souza ◽  
Nerilde Favaretto ◽  
Lucimeris Ruaro
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Coliform Bacteria ◽  
Environmental Preservation ◽  
Quality Of Water ◽  
Average Rainfall ◽  
Agricultural Potential ◽  
Thermotolerant Coliforms ◽  
Type Of Land Use

ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall increased the probability of thermo tolerant coliforms exceeding the limit allowed under legislation. In regards to thermo tolerant coliforms in the analyzed period, the water from only one reservoir was in accordance with the legislation for the quality of water to irrigate vegetables that are consumed raw. Results of this study are an alert to the local government for the necessity of environmental preservation to maintain the water quality of the county.

scholarly journals Quality of surface water related to land use: a case study in a catchment with small farms and intensive vegetable crop production in southern Brazil

2014 ◽  
Vol 38 (2) ◽  
pp. 656-668 ◽  
Author(s):  
Karina Hacke Ribeiro ◽  
Nerilde Favaretto ◽  
Jeferson Dieckow ◽  
Luiz Cláudio de Paula Souza ◽  
Jean Paolo Gomes Minella ◽  
...  
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Land Use ◽  
Surface Water ◽  
Total Nitrogen ◽  
Total Phosphorus ◽  
Oxygen Demand ◽  
Lower Percentage ◽  
Native Forest ◽  
Particulate Nitrogen

Water degradation is strongly related to agricultural activity. The aim of this study was to evaluate the influence of land use and some environmental components on surface water quality in the Campestre catchment, located in Colombo, state of Parana, Brazil. Physical and chemical attributes were analyzed (total nitrogen, ammonium, nitrate, total phosphorus, electrical conductivity, pH, temperature, turbidity, total solids, biological oxygen demand, chemical oxygen demand and dissolved oxygen). Monthly samples of the river water were taken over one year at eight monitoring sites, distributed over three sub-basins. Overall, water quality was worse in the sub-basin with a higher percentage of agriculture, and was also affected by a lower percentage of native forest and permanent preservation area, and a larger drainage area. Water quality was also negatively affected by the presence of agriculture in the riparian zone. In the summer season, probably due to higher rainfall and intensive soil use, a higher concentration of total nitrogen and particulate nitrogen was observed, as well as higher electrical conductivity, pH and turbidity. All attributes, except for total phosphorus, were in compliance with Brazilian Conama Resolution Nº 357/2005 for freshwater class 1. However, it should be noted that these results referred to the base flow and did not represent a discharge condition since most of the water samples were not collected at or near the rainfall event.

scholarly journals 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)

2012 ◽  
Vol 8 (3) ◽  
pp. 845-858 ◽  
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

scholarly journals Impact of Landuses on Air and Water Quality- A Review

2018 ◽  
Vol 13 (Special issue 1) ◽  
pp. 11-21
Author(s):  
KALYANI SUPRIYA ◽  
R K AGGARWAL ◽  
S K BHARDWAJ
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Air Quality ◽  
Environmental Change ◽  
Anthropogenic Activities ◽  
Global Environmental Change ◽  
Quality Of Water ◽  
Global Environmental ◽  
Land Use Impact

Landuse alteration is one of the primary causes of global environmental change. Changes in the landuse usually occurred regionally and globally over last few decades and will carry on in the future as well. These activities are highly influenced by anthropogenic activities and have more serious consequences on the quality of water and air. In the present study relationship between land use impact on water and air quality have been reviewed.

scholarly journals Impact of Changes in Land Use and Land Cover in the Contribution Basin of Doutor João Penido Water Supply Reservoir of Juiz de Fora, MG, Brazil

2021 ◽  
Vol 11 (1) ◽  
pp. 108
Author(s):  
Juliana Nazareth de Lana ◽  
Márcio de Oliveira ◽  
Vanessa Romario de Paula ◽  
Cézar Henrique Barra Rocha
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Land Cover ◽  
Water Supply ◽  
Quality Parameters ◽  
E Coli ◽  
The City ◽  
Water Supply Reservoirs ◽  
Limnological Parameters

Changes in the land use and land cover in areas adjacent to water reservoirs directly affect the quality of this water. This research presents a study on the water quality in the basin of one of the most important public water supply reservoirs in the city of Juiz de Fora, Minas Gerais. The main objective of this study was to analyze the behavior of limnological parameters and the correlation with land use and land cover in the contribution basin of the Doutor João Penido reservoir (CBJPR). The methodology was based on the analysis of water quality parameters, related to water samples collected from 2012 to 2015. Six sampling points were chosen from different locations: spring, medium course, main tributaries of the reservoir and the reservoir catchment. The parameters analyzed were turbidity, total solids (TS), oxygen consumed (OC), dissolved oxygen (DO), electrical conductivity, total nitrogen (TN), total phosphorus (TP), E. Coli, temperature, pH and total dissolved solids (TDS). The Kendall’s tau test was used to analyze the correlations between the parameters of water quality, land use and land cover in the CBJPR. In general, measured parameters showed better results in spring and in reservoir catchment, showing a worse quality of the water along the tributaries and the dilution power of the reservoir. The correlations pointed to the need for protection and preservation of forests in strategic locations to ensure good water quality.

scholarly journals ASSESSMENT OF THE IMPACTS OF LAND USE ON WATER QUALITY OF BRANTAS UPSTREAM , BATU CITY, INDONESIA

2017 ◽  
Vol 4 (1) ◽  
pp. 18-25
Author(s):  
Bambang Rahadi Widiatmono ◽  
Fajri Anugroho ◽  
Euis Elih Nurlaelih ◽  
Akhmad Adi Sulianto ◽  
Novia Lusiana
Keyword(s):  
Water Quality ◽  
Land Use
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