A spatiotemporal classification approach to evaluate the impacts of land use and land cover changes before and after the Três Irmãos reservoir formation in the Tietê River, Brazil

Lucchetta, Beatriz Cirino; Watanabe, Fernanda; Carmo, Nariane Marselhe Ribeiro Bernardo do

doi:10.1007/s40808-023-01757-8

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…Inflow into the TI reservoir is limited primarily by the Nova Avanhandava (NA) HPP upstream of the reservoir, and secondarily by the flows across the Pereira Barreto channel which vary according to the operational requirements of the two hydroelectric power plants. The TI reservoir area has multiple uses, such as fish farming, professional and recreational fishery, tourism associated with boat trips, and cattle breeding, making it an anthropic area [25, 26].…”

Section: Methodsmentioning

confidence: 99%

Insights into the representativeness of biodiversity assessment in large reservoir through eDNA metabarcoding

Cortez,

Torres,

Guimarães

et al. 2024

Preprint

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Monitoring biodiversity on a large scale, such as in hydropower reservoirs, poses scientific challenges. Conventional methods such as passive fishing gear are prone to various biases, while the utilization of environmental DNA (eDNA) metabarcoding has been restricted. Most eDNA studies have primarily focused on replicating results from traditional methods, which themselves have limitations regarding representativeness and bias. In our study, we employed eDNA metabarcoding with three markers (12SrRNA, COI, and 16SrRNA) to evaluate the biodiversity of an 800 km2 reservoir. We utilized hydrodynamic modeling to determine water flow velocity and the water renewal ratio throughout the study area. Additionally, we conducted statistical comparisons – rarefaction curves and multivariate methods – among samples as an alternative approach to assess biodiversity representation. The eDNA identified taxa previously documented in the reservoir by traditional monitoring methods, as well as revealed 29 – nine fishes and 20 non-fish – previously unreported species. These results highlight the robustness of eDNA as a biodiversity monitoring technique. Our findings also indicated that by randomly sampling 30% of the original number of samples, we could effectively capture the same biodiversity. This approach enabled us to comprehend the reservoir's biodiversity profile and propose a straightforward, cost-effective monitoring protocol for the future based on eDNA.

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Section: Methodsmentioning

confidence: 99%

Insights into the representativeness of biodiversity assessment in large reservoir through eDNA metabarcoding

Cortez,

Torres,

Guimarães

et al. 2024

Preprint

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“…Pembangunan infrastruktur merupakan salah satu indikator pertumbuhan ekonomi yang bertujuan untuk meningkatkan laju pengembangan wilayah dan memberi dampak bagi kehidupan masyarakat yang ditunjukan dengan membangun sarana dan prasarana (Ihsan, 2021;Ridayani et al, 2023;Wildan Pratama, 2023). terhadap banjir, hingga sebagai sarana pariwisata (Woldemichael et al, 2012;Bonansea et al, 2021;Shrestha et al, 2021;Handayani & Wibowo, 2023; Dibalik berbagai kebermanfaatan dari pembangunan waduk dan bendungan membawa implikasi terhadap aspek sosial ekonomi yang ditunjukan dengan penurunan produksi hasil pertanian dan hilangnya mata pencaharian petani, kerusakan lingkungan seperti degradasi lahan, hingga perubahan tutupan lahan atau alih fungsi lahan (Woldemichael et al, 2012;Wiejaczka et al, 2017;Fitriatul 'ulya et al, 2023;Lucchetta et al, 2023;Swe et al,2023;Sang et al, 2023). Hasil penelitian terdahulu yang dilakukan oleh…”

Section: Pendahuluanunclassified

The Analisis Perubahan Tutupan Lahan Pertanian dan Perkebunan di Bendungan Gondang, Kabupaten Karanganyar menggunakan Google Earth

Purwanti,

Setyanto P,

Wibowo

2024

SPATIAL

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Pembangunan sebuah Bendungan umumnya bertujuan untuk mitigasi terhadap bencana banjir, manajemen ketersediaan air, irigasi untuk pertanian, dan juga salah satu atraksi pariwisata. Pembangunan Bendungan membawa implikasi adanya alih fungsi lahan di sekitar area Bendungan yang menyebabkan adanya perubahan penutup lahan. Bendungan Gondang merupakan salah satu program pemerintah yang mulai di bangun sejak 2014 dimana rehabilitasi saluran irigasinya selesai pada 2019 dan telah mencapai kapasitas tampungan maksimum di tahun 2020. Penelitian ini bertujuan untuk menganalisa perubahan tutupan lahan pertanian dan perkebunan sebelum dan sesudah Bendungan Gondang dibangun dengan menggunakan Citra Satelit yang bersumber dari Google Earth secara multitemporal dengan tahun akuisisi 2013 dan 2022. Data penutup lahan diperoleh melalui metode on screen digitization dengan menghasilkan 12 kelas penutup lahan dan dianalisa menggunakan metode overlay menggunakan Sistem Informasi Geografis (SIG). Hasil uji akurasi keseluruhan untuk data penutup lahan tahun 2013 dan 2022 berturut adalah 94,33% dan 96,83%. Perubahan tutupan lahan terbesar terjadi pada kelas penutup lahan perkebunan yang mengalami penurunan luas wilayah sebesar 29,72 Ha

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Assessment of the effect of land use and land cover (LULC) change on depth runoff: Case study of Skikda floods event

Leulmi,

Lazri,

Abdelkebir

et al. 2023

B SERBIAN GEOGRAPHIC

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Land use and land cover changes in coastal cities can influence drainage sys-tems in ways that affect surface overflows and the infiltration potential of a land surface, making flooding one of the drivers. This research aims to demonstrate the spatiotemporal dynamics of LULC and their combined impact on rainfall and flood height in Skikda, Algeria. The research uses remote sensing (RS) and geographic information systems (GIS) to determine the type and location of LULC changes in Skikda. The supervised classification methodology used the maximum likelihood technique (MCL). Changes were identified in five categories: built-up areas, green spaces, bodies of water, agriculture, and vacant land. In Q-GIS 3.28.2, Landsat 4-5 (TM) data from 1984 and 2004 and Landsat 8-9 (OLI)/TIRS data from 2019 were used based on the United States Geological Survey (USGS). The results show that the impervious built-up area has changed significantly (44.01%) due to massive urbanization and rapid industrialization, which would affect heavy rainfall activity and increase flood height due to the intense imperviousness of the affected soil (from 27% to 44%). The precipitation and flood height were examined and compared with observations to investigate the impact of the LULC model modification during the flood. The comparison of three flood events (1984, 2004, and 2019) revealed that the change in the LULC model is the main factor increasing flood risk in the study area. This study demonstrates the importance of considering temporal changes in land use, land cover, rainfall, and flood height when mapping floods in urban cities.

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A spatiotemporal classification approach to evaluate the impacts of land use and land cover changes before and after the Três Irmãos reservoir formation in the Tietê River, Brazil

Cited by 3 publications

References 36 publications

Insights into the representativeness of biodiversity assessment in large reservoir through eDNA metabarcoding

Insights into the representativeness of biodiversity assessment in large reservoir through eDNA metabarcoding

The Analisis Perubahan Tutupan Lahan Pertanian dan Perkebunan di Bendungan Gondang, Kabupaten Karanganyar menggunakan Google Earth

Assessment of the effect of land use and land cover (LULC) change on depth runoff: Case study of Skikda floods event

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