Drainage integration in extensional tectonic settings

Larson, Phillip H.; Dorn, Ronald I.; Gootee, Brian F.; Seong, Yeong Bae

doi:10.1016/j.geomorph.2021.108082

Cited by 2 publications

(3 citation statements)

References 81 publications

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“…River basins exist in a continuous state of development, expanding and capturing adjacent drainage basins at both gradual and punctuated rates (e.g., through periods of relatively rapid crustal deformation or vulcanism) and achieving transverse integration through at least five mechanisms (antecedence, superposition, anteposition, spillover, and piracy) [113,114]. River channels respond to perturbations such as flood events by moving toward an equilibrium state that, due to recurring perturbation, may never be reached [101].…”

Section: Conceptual Fre Model Depicting Interactions Among Independen...mentioning

confidence: 99%

Characteristics and Process Interactions in Natural Fluvial–Riparian Ecosystems: A Synopsis of the Watershed-Continuum Model

Stevens¹,

Johnson²,

Estes³

2023

River Basin Management - Under a Changing Climate

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The watershed-continuum model (WCM) describes fluvial-riparian ecosystems (FREs) as dynamic reach-based ecohydrogeological riverine landscapes linking aquatic, riparian, and upland domains within watersheds. FRE domains include aquatic (channels, hyporheic zones, springs, other groundwater zones and in-channel lakes), riparian, and adjacent upland zones, all of which can interact spatio-temporally. Occupying only a minute proportion of the terrestrial surface, FREs contain and process only a tiny fraction of the Earth’s freshwater, but often are highly productive, flood-disturbed, and ecologically interactive, supporting diverse, densely-packed biotic assemblages and socio-cultural resource uses and functions. FRE biodiversity is influenced by hydrogeomorphology, ecotonal transitions, and shifting habitat mosaics across stage elevation. Thus, the WCM integrates physical, biological, and socio-cultural characteristics, elements, and processes of FREs. Here, we summarize and illustrate the WCM, integrating diverse physical and ecological conceptual models to describe natural (unmanipulated) FRE dynamics. We integrate key processes affecting FRE forms and functions, and illustrate reach-based organization across temporal and spatial scales. Such a holistic approach into natural FRE structure and functions provides a baseline against which to measure and calibrate ecosystem alteration, management, and rehabilitation potential. Integration of groundwater, fluvial, and lacustrine ecological interactions within entire basins supports long-term, seasonally-based sustainable river management, which has never been more urgently needed.

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Section: Conceptual Fre Model Depicting Interactions Among Independen...mentioning

confidence: 99%

Characteristics and Process Interactions in Natural Fluvial–Riparian Ecosystems: A Synopsis of the Watershed-Continuum Model

Stevens¹,

Johnson²,

Estes³

2023

River Basin Management - Under a Changing Climate

View full text Add to dashboard Cite

show abstract

“…In addition, such works are mainly focused on the identification of the mechanism of drainage integration (Hilgendorf et al, 2020) or on intracontinental endorheic basins (Cunha et al, 2019;Soria-Jáuregui et al, 2019;Struth et al, 2019). In the last years, there is a growing interest on such a topic (see for example Dorn et al, 2020;Gioia and Schiattarella, 2020;Larson et al, 2020;Skotnicki et al, 2021;Gootee et al, 2022;Larson et al, 2022). Recent works highlighted that an endorheic/exorheic transition promoted a complex and fast topographic, erosional, and depositional re-organization of a landscape (Larson et al, 2022) but several open problems such as the impact of climate changes on drainage integration processes need to be better investigated (Hilgendorf et al, 2020;Larson et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…In the last years, there is a growing interest on such a topic (see for example Dorn et al, 2020;Gioia and Schiattarella, 2020;Larson et al, 2020;Skotnicki et al, 2021;Gootee et al, 2022;Larson et al, 2022). Recent works highlighted that an endorheic/exorheic transition promoted a complex and fast topographic, erosional, and depositional re-organization of a landscape (Larson et al, 2022) but several open problems such as the impact of climate changes on drainage integration processes need to be better investigated (Hilgendorf et al, 2020;Larson et al, 2022). In addition, few comprehensive studies deal with the estimation of long-term rates of fluvial incision and knickpoint migration induced by a sudden baselevel lowering.…”

Section: Introductionmentioning

confidence: 99%

Post-lacustrine evolution of a tectonically-controlled intermontane basin: Drainage network analysis of the Mercure basin, southern Italy

Gioia¹,

Corrado

Danese³

et al. 2023

Front. Earth Sci.

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Topographic analysis, drainage network morphometry, river profile analysis, and spatial distribution of fluvio-lacustrine terraces have been used to reconstruct the drainage network evolution in the Mercure River basin, a large intermontane tectonic basin of the axial zone of southern Apennines. Morphotectonic evolution of the study area is mainly controlled by poly-kinematics high-angle WNW-ESE and NE-SW faults, which promoted the development of a complex landscape with relict landscapes and/or low-relief erosional surfaces that occurred in a staircase arrangement at the top of the landscapes or at higher altitudes than the basin infill. The creation of the accommodation space for the deposition of the thick basin infill was related to an important tectonic phase of block-faulting along N120°-trending normal faults, which occurred in the final part of the Lower Pleistocene. Such an evolution strongly controls the longitudinal profile forms of channels draining the northern sector of the study area, which are featured by a well-developed concave-up segment in river profiles of these channels between an upward trait with lower values of channel steepness and the trace of the master fault. River profiles in north-western and south-east sectors of the Mercure River basin exhibit clear knickpoints at altitudes comparable with those of the superimposed orders of relict landscapes related to the initial formation of the tectonic basin and the subsequent evolution of the endorheic basin, with a post-lacustrine geomorphological evolution of the drainage network that is controlled by fluvial incision occurring at rates comparable than those reconstructed by independent morphotectonic markers. The erosion of the threshold of the endorheic basin occurring during the base-level fall of the MIS 12 promoted a dramatic base-level fall of about 150 m, which corresponds to a mean incision rate of about 0.35 mm/yr. Post-lacustrine evolution of the Mercure basin strongly controls the morphometric features of the drainage network, which preserves a centripetal pattern with several planimetric anomalies such as counterflow and high-angle confluences, local-scale fluvial capture phenomena and drainage divide migrations.

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Drainage integration in extensional tectonic settings

Cited by 2 publications

References 81 publications

Characteristics and Process Interactions in Natural Fluvial–Riparian Ecosystems: A Synopsis of the Watershed-Continuum Model

Characteristics and Process Interactions in Natural Fluvial–Riparian Ecosystems: A Synopsis of the Watershed-Continuum Model

Post-lacustrine evolution of a tectonically-controlled intermontane basin: Drainage network analysis of the Mercure basin, southern Italy

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