Impacts of Land-Use and Land-Cover Change on River Systems

James, L. Allan; Lecce, Scott A.; Pavlowsky, Robert T.

doi:10.1016/b978-0-12-818234-5.00089-4

Cited by 4 publications

(3 citation statements)

References 479 publications

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“…In the light of the present study, we finally identify three areas that would need further research. First, the agro‐ecosystem of the river islands is at a very unstable equilibrium, and some external factors, such as climate change (Sarker et al., 2020), land use changes (James & Lecce, 2013), and the loss of river connectivity for flow and sediments (Gurnell & Petts, 2002), could alter it significantly. A wider comparison among islands of free‐flowing rivers and of rivers with different degrees of regulation would allow foreseeing possible evolutionary trajectories of islands in the medium‐ and long‐term to verify their adaptability to future socio‐environmental scenarios.…”

Section: Discussionmentioning

confidence: 99%

Hydro‐Morphological Disturbance and Suitability for Temporary Agriculture of Riverine Islands in a Tropical Wandering River

Serrao

Brentari

Terrones

et al. 2022

Water Resources Research

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Section: Discussionmentioning

confidence: 99%

Hydro‐Morphological Disturbance and Suitability for Temporary Agriculture of Riverine Islands in a Tropical Wandering River

Serrao

Brentari

Terrones

et al. 2022

Water Resources Research

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“…Humans have significantly modified river sediment load, discharge, and the degree to which watersheds are connected to the coast [14,15]. Land-cover changes, such as clearing forests, commonly promote soil erosion and increased sediment load in rivers, with relief providing an important first-order control on the extent of landscape erosion and sediment transport [16].…”

Section: Introductionmentioning

confidence: 99%

Anthropogenic impacts on tidal creek sedimentation since 1900

et al. 2023

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Land cover and use around the margins of estuaries has shifted since 1950 at many sites in North America due to development pressures from higher population densities. Small coastal watersheds are ubiquitous along estuarine margins and most of this coastal land-cover change occurred in these tidal creek watersheds. A change in land cover could modify the contribution of sediments from tidal creek watersheds to downstream areas and affect estuarine habitats that rely on sediments to persist or are adversely impacted by sediment loading. The resilience of wetlands to accelerating relative sea-level rise depends, in part, on the supply of lithogenic sediment to support accretion and maintain elevation; however, subtidal habitats such as oyster reefs and seagrass beds are stressed under conditions of high turbidity and sedimentation. Here we compare sediment accumulation rates before and after 1950 using 210Pb in 12 tidal creeks across two distinct regions in North Carolina, one region of low relief tidal-creek watersheds where land cover change since 1959 was dominated by fluctuations in forest, silviculture, and agriculture, and another region of relatively high relief tidal-creek watersheds where land-use change was dominated by increasing suburban development. At eight of the creeks, mass accumulation rates (g cm-2 y-1) measured at the outlet of the creeks increased contemporaneously with the largest shift in land cover, within the resolution of the land-cover data set (~5-years). All but two creek sites experienced a doubling or more in sediment accumulation rates (cm yr-1) after 1950 and most sites experienced sediment accumulation rates that exceeded the rate of local relative sea-level rise, suggesting that there is an excess of sediment being delivered to these tidal creeks and that they may slowly be infilling. After 1950, land cover within one creek watershed changed little, as did mass accumulation rates at the coring location, and another creek coring site did not record an increase in mass accumulation rates at the creek outlet despite a massive increase in development in the watershed that included the construction of retention ponds. These abundant tidal-creek watersheds have little relief, area, and flow, but they are impacted by changes in land cover more, in terms of percent area, than their larger riverine counterparts, and down-stream areas are highly connected to their associated watersheds. This work expands the scientific understanding of connectivity between lower coastal plain watersheds and estuaries and provides important information for coastal zone managers seeking to balance development pressures and environmental protections.

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“…Perubahan tutupan lahan adalah konversi dari berbagai jenis penggunaan lahan dan hasil dari interaksi yang kompleks antara manusia dan lingkungan fisik (James et al, 2022). Tutupan lahan terancam oleh pembukaan dan konversi lahan untuk kegiatan budidaya di daerah aliran sungai (Kamarudin et al, 2019).…”

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Analisis Spasial Perubahan Tutupan Lahan Di Das Wae Batugantong, Kota Ambon

Latue

Rakuasa

2023

J. Tanah Sumberd. Lahan

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The development of developed land over the last 15 years in Ambon City has affected land cover changes in the Wae Batutangan watershed. This is a result of higher population growth and the need for residential land, which is increasing every year. This study aimed to analyze land cover changes in the Wae Batu Hang watershed in 2012, 2017, and 2022. The method used in this study was a spatial comparison of land cover changes in 2012 and 2017, as well as in 2017 and 2022. Land cover data is obtained from the results of this study. Visual interpretation and digitization where land cover in 2012 was obtained from IKONOS images, and land cover in 2017 and 2022 were obtained from SPOT 6 images. Results of this study showed that the cover of built-up land and open land continues to increase in the area, along with population growth and the high demand for land in watersheds.

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Impacts of Land-Use and Land-Cover Change on River Systems

Cited by 4 publications

References 479 publications

Hydro‐Morphological Disturbance and Suitability for Temporary Agriculture of Riverine Islands in a Tropical Wandering River

Hydro‐Morphological Disturbance and Suitability for Temporary Agriculture of Riverine Islands in a Tropical Wandering River

Anthropogenic impacts on tidal creek sedimentation since 1900

Analisis Spasial Perubahan Tutupan Lahan Di Das Wae Batugantong, Kota Ambon

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