Assessing the Influence of Land-Use Changes on Water Quality Using Remote Sensing and GIS: A Study in Cirata Reservoir, Indonesia

Sunardi, Sunardi; Nursamsi, Ilyas; Dede, Moh.; Paramitha, Amalia; Arief, Mochammad Chandra WIrawan; Ariyani, Miranti; Santoso, Prayudi

doi:10.26554/sti.2022.7.1.106-114

Cited by 13 publications

(7 citation statements)

References 39 publications

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“…The dam turned to be the location of waste disposal coming from Citarum river watershed, both from point sources of domestic waste and non-point sources of industrial waste. This problem would inevitably cause a severe decline in water quality in Cirata Dam [31,34]. As a result, there is a decrease in the dam area (shallowing) that happens very rapidly every year.…”

Section: Resultsmentioning

confidence: 99%

“…Pollution in Cirata Dam is mostly caused by the high sedimentation of Citarum upstream, uncontrolled fish farming activities using the floating net, and land use at the upstream [31,33,34], Degradation of water quality in line with unregulated exploitation has caused fish production in the region to decline yearly. For sustainable management, this study analyzes the impacts of economic activities (fishing) and noneconomic activities (pollution), to the depletion of fishery resources in the dam.…”

Section: Introductionmentioning

confidence: 99%

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The Cost of Pollution to Dam’s Fisheries

Anna¹,

Hindayani²

2022

Pol. J. Environ. Stud.

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Cirata Dam is one of the dams in West Java, Indonesia, which has significant resources of endemic fish potential from adjacent rivers, as well as fish introduction from other regions or countries. Unfortunately, the production of fishing in these dams has decreased significantly every year due to unregulated fishing activities, water pollution caused by the feed from aquaculture activities, as well as domestic and industrial wastes discharged into the waters. This study analyzes the depletion of fish resources due to fishing and pollution at these sites. Methods used in this research are the bio-economic logistic standard and Gompertz model, to measure the impact of fishing on the dynamics of fish resources, and linear as well as non-linear regression to obtain the coefficient of pollution on production. The depletion of fish resources calculated by Anna model modification. The result shows that the depletion rate of Cirata's fish, varies in a year with an average depletion of 25% during the year of observation with standard model for analyzing fishing activities intervention alone. Combined with pollution, the rate of depletion is increased. The implication of the MSY or MEY management instruments is required to control the fish resources.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Cost of Pollution to Dam’s Fisheries

Anna¹,

Hindayani²

2022

Pol. J. Environ. Stud.

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“…Despite the importance of monitoring pollution outbreaks, there is currently a lack of studies that provide seasonal trophic analysis using remote sensing data for Cirata Reservoir [19]. Other research using remote sensing imagery in Indonesia is limited to observing TSS [20], water bodies dynamics [21], also changes in DO, BOD and pH [22]. This study differs from previous research as it focuses on analyzing the seasonal trophic status of the freshwater reservoir using remote sensing data.…”

Section: Introductionmentioning

confidence: 99%

Utilizing Satellite Imagery for Seasonal Trophic Analysis in the Freshwater Reservoir

Rachmadita,

Widiana,

Rahmat

et al. 2023

J. Multidiscip. Appl. Nat. Sci.

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Eutrophication, an aquatic problem that impacts water quality and ecosystems, can be addressed through technological developments utilizing satellite imagery to analyze the trophic status of water. This study aimed to determine the trophic status of the freshwater reservoir in different seasons using satellite imagery. Water quality data were obtained from field surveys (11 samples) during the wet and dry seasons in Cirata Reservoir (Indonesia) while the remote sensing images were obtained from the Landsat-8 OLI. Trophic status refers to Carlson's Trophic State Index consisting of two parameters named chlorophyll-A and water transparency. This study found that satellite imagery could estimate seasonal trophic information. During the wet season, the algorithms determined information about chlorophyll-A (48%) and transparency (35%). Whereas during the dry season, the algorithms successfully estimated both information at 59% and 21%, respectively. Unfortunately, the Landsat-8 OLI had limitations for estimating total phosphorus. From these two parameters, the trophic status in the Cirata Reservoir showed moderate (wet season) and mild (dry season) eutrophic. Cirata Reservoir has a higher trophic level during the wet season since it has more surface water supply with lots of pollutants.

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“…Agricultural activity is also a main factor in soil erosion in the Upstream Citarum Watershed [16]. Land use conversions, such as forests into agricultural land and paddy fields, can increase the total suspended solids (TSS) in the Cirata Reservoir [17].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Changes in Water Quality Based on Climate and Hydrology Effects in the Cirata Reservoir

Wiranegara,

Sunardi,

Sumiarsa

et al. 2023

Water

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This research aimed to identify water quality changes in the Cirata Reservoir and the factors affecting them in terms of hydrology and climate. The sampling was carried out in both the rainy and dry seasons at 12 locations in the Cirata Reservoir. The Mann–Whitney U-test (different test) results showed that salinity, total suspended solids (TSS), the potential of hydrogen (pH), nitrate (NO3-N), phosphate (PO4), nitrate and phosphate content in the sediment were significantly different (α < 0.05) between the rainy and dry seasons. The principal component analysis (PCA) results showed that the water quality characteristics in the Cirata Reservoir in the dry season were influenced by environmental conditions in the reservoir, especially by the floating cage aquaculture and climate conditions. The high solar radiation, low rainfall, and floating cage aquaculture increased the pH and amounts of dissolved oxygen (DO), ammonia (NH3-N), PO4, nitrate and phosphate in the sediment while decreasing transparency, salinity, TSS, and NH3-N. During the rainy season, the high runoff from Citarum Watershed controlled the water quality characteristics of the Cirata Reservoir. In this season, transparency, salinity, pH, DO, NH3-N, PO4, nitrate and phosphate in the sediment increased, while TSS tended to be low. In general, the water volume addition decreased the nutrition and salinity concentration in the water body. However, a distinct phenomenon occurred in the Cirata Reservoir. The runoff from agriculture, settlement, livestock, and the Citatah Karst in the Upper Citarum Watershed increased nutrition and salinity in the reservoir. Land use in the Citarum Watershed and floating cage aquaculture had an important role in the reservoir water quality.

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Assessing the Influence of Land-Use Changes on Water Quality Using Remote Sensing and GIS: A Study in Cirata Reservoir, Indonesia

Cited by 13 publications

References 39 publications

The Cost of Pollution to Dam’s Fisheries

The Cost of Pollution to Dam’s Fisheries

Utilizing Satellite Imagery for Seasonal Trophic Analysis in the Freshwater Reservoir

Characteristics and Changes in Water Quality Based on Climate and Hydrology Effects in the Cirata Reservoir

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