A review of the water resources management for the Brantas River basin: challenges in the transition to an integrated water resources management

Roestamy, Martin; Fulazzaky, Mohamad Ali

doi:10.1007/s10668-021-01933-9

Cited by 15 publications

(8 citation statements)

References 65 publications

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“…Plastic waste found in freshwater ecosystems comes from terrestrial sources. The main pathways of microplastics are rivers and tributaries in urban areas so there are anthropogenic pressures that affect ecosystems upstream and downstream of the Brantas River [6]. The Brantas River is one of the rivers in Indonesia that is experiencing severe pollution, according to [31], The Porong River produced as many as 1,860.24 microplastic particles in 2020 with supporting data from [9] stating that 37% of the composition of waste in the Brantas River is plastic waste.…”

Section: Discussionmentioning

confidence: 99%

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Preliminary Report of Microplastic (MPs) Presence on East Java Freshwater Sponges at Brantas Porong River

Samudra,

Aunurohim,

Setiawan

2024

BIO Web Conf.

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Microplastics are plastic fragments in the size range of >1 μm to <5 mm. Microplastics are a global concern because of their presence in various ecosystems to organisms and their tendency to hurt organisms. Due to their small size, microplastics can be easily ingested by organisms, including sponges. Freshwater sponges are rare in the world. As a filter feeder organism, sponges can accumulate microplastics into their bodies. This study aims to analyze the physical characteristics of microplastic abundance in freshwater sponges in Porong River, Mojokerto City, East Java. Oncosclera asiatica and Eunapius carteri sponge samples were taken from Porong River at a depth of about 1 meter. Analysis of physical characteristics (size, color, and shape) was conducted using a stereo microscope and Optilab. The abundance of microplastics in O. asiatica was found to be 1150 particles/20 grams wet weight. The physical characteristics that dominate O. asiatica sponges are red and black fibers, black fragments, and pellets. The abundance of microplastics in E. carteri was found to be 2.850 particles/20 grams wet weight. The physical characteristics that dominate E. carteri sponges are white foam, crystal pellets, blue fibers, and black fragments.

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Section: Discussionmentioning

confidence: 99%

“…Anthropogenic pressures affect ecosystems in the upstream and downstream reaches of the Brantas River [6]. This anthropogenic pressure comes from the many residential, agricultural, and industrial buildings built downstream of the river [7].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Report of Microplastic (MPs) Presence on East Java Freshwater Sponges at Brantas Porong River

Samudra,

Aunurohim,

Setiawan

2024

BIO Web Conf.

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“…Also, Janjua et al (2021), Colella et al (2021), and Dhakal et al (2021) have pointed out that strengthening the institutions and removing mistrust among the farmers are the key elements for encouraging farmers to participate in water consumption management. Roestamy and Fulazzaky (2021) stated that the challenges of managing the optimum use of water resources to fulfill the needs of various stakeholders related to technical issues, institutional frameworks, and regulatory instruments were rooted in the participation of stakeholders.…”

Section: Discussionmentioning

confidence: 99%

Content Analysis of the Problems and Challenges of Agricultural Water Use: A Case Study of Lake Urmia Basin at Miandoab, Iran

et al. 2022

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The present study aimed to identify the problems and challenges of water resources use by the agricultural sector. The research conducted a qualitative content analysis on documents and semi-structured interviews with experts and key informants in the study site of Miandoab, Iran. Based on the results, the challenges of water resources use for agriculture include (i) the problems related to water consumption management composed of two sub-categories of encouraging farmers to participate in water consumption management and the problems related to monitoring and controlling water consumption, (ii) the problems of water resources management including the sub-categories of inappropriate management perspective on water abstraction, the problem of managing unauthorized abstractions, the problems of the infrastructure of water allocation scheduling, and (iii) the problems of farmers’ traditionalism whose sub-categories are farmers’ incorrect habits and experiences, low awareness, low motivation, and poor knowledge, as well as the problems related to their farms.

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“…In recent years, the Brantas watershed has been reported to increasingly undergo varying ecological issues. This can include illegal logging, soil erosion and sedimentation, eutrophication, lowland nutrient enrichments, as well as the escalated drying of springs in upper region (Fulazzaky 2009;Widianto et al 2010;Schroeder and Knauth 2013;Roestamy and Fulazzaky 2021). The degrading conditions in Brantas are apparently linked to the increasingly multifaceted pressures on the watershed.…”

Section: Study Areamentioning

confidence: 99%

Runoff observation in a tropical Brantas watershed as observed from long-term globally available TerraClimate data 2001–2020

Wiwoho

Astuti

2022

Geoenviron Disasters

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Runoff information and its dynamics are critical for supporting watershed management; however, spatio-temporal data about runoff is rare or unavailable in data-scarce regions. Information about the performance of remote sensing-based runoff and its potential application is limitedly known. In data-scarce regions, this condition impedes comprehensive watershed assessment especially in the midst of climate change impacts. This study examined the performance of globally available monthly runoff dataset provided by TerraClimate at ~ 4 km spatial resolution and employed them to assess the runoff dynamics in a humid tropic watershed. Monthly TerraClimate data shows a moderate performance with an r of 0.63, RMSE of 57–127 mm/month and NRMSE of 18–30% to the simulated runoff from a well-calibrated model. The upper region of Brantas watershed was found to be the hotspot of high runoff. About 25% of the study area belongs to high runoff (0–33rd percentile). Over the last two decades, runoff has been slightly increased across the study area. Green vegetation fraction (GVF), precipitation, and topography are critical for regulating runoff dynamics. While topography and precipitation impact on runoff are straightforward, the GVF’s role is complex and site-specific. High runoff was found mostly to be associated with high precipitation and steep slope. GVF appears to be less effective in representing ground cover against runoff generation due to high variability of actual ground cover types. Using time-series and change vector analysis (CVA) of runoff and GVF, the dynamics of watershed condition was examined. Long-term CVA analysis also found that the condition in Brantas watershed was fluctuated with slight increase in impaired condition. The study exemplified the potential use of the remote sensing-based runoff data in a tropical data-scarce region. Despite limitation of the runoff data due to its moderate performance, the globally available monthly runoff data from TerraClimate can be used to support regional water resource assessment in data-scare regions. Future improvement that includes downscaling and use of machine learning can be considered to improve the remotely sensed runoff data to deliver the bigger benefits of such data.

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A review of the water resources management for the Brantas River basin: challenges in the transition to an integrated water resources management

Cited by 15 publications

References 65 publications

Preliminary Report of Microplastic (MPs) Presence on East Java Freshwater Sponges at Brantas Porong River

Preliminary Report of Microplastic (MPs) Presence on East Java Freshwater Sponges at Brantas Porong River

Content Analysis of the Problems and Challenges of Agricultural Water Use: A Case Study of Lake Urmia Basin at Miandoab, Iran

Runoff observation in a tropical Brantas watershed as observed from long-term globally available TerraClimate data 2001–2020

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