Interactions of Microtopography, Slope and Infiltration Cause Complex Rainfall‐Runoff Behavior at the Hillslope Scale for Single Rainfall Events

Caviedes‐Voullième, Daniel; Ahmadinia, Ebrahim; Hinz, Christoph

doi:10.1029/2020wr028127

Cited by 21 publications

(15 citation statements)

References 98 publications

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“…1 (bottom). This is similar to the findings by Caviedes-Voullième and collaborators 1 , who observed that for high rainfall intensities, the effect of topography on the hydrograph is reduced, because the surface depression storage fills in the early stages of rainfall onset. Differences in model predictions become more clear when the net catchment hydrograph is plotted.…”

Section: Resultssupporting

confidence: 91%

“…In the literature, several indices and measurements of hydrological connectivity have been put forward 26 . One of these indices is the total number of disconnected clusters of ponding water, which is an intuitive metric to quantify hydrological connectivity for surface flow processes 1 . A cluster is defined as one or more “wet” pixels that are geographically separated from the rest of the wet areas.…”

Section: Methodsmentioning

confidence: 99%

“…Runoff generation and overland flow results from the interactions among rainfall, surface topography and roughness, and soil physical and hydrological properties 1 . These interactions control the development of preferential flow paths both on the surface and in the subsurface, which route net water fluxes towards the catchment’s outlet 2 , 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Most runoff modeling studies consider catchments with no significant inflow from upstream areas 1,[12][13][14][15][16][17][18] . In contrast, in catchments that receive upstream water, the hydrograph may be controlled by this inflow from their headwaters.…”

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confidence: 99%

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Understanding the hydrological response of a headwater-dominated catchment by analysis of distributed surface–subsurface interactions

Özgen‐Xian

Molins

Johnson

et al. 2023

Sci Rep

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We computationally explore the relationship between surface–subsurface exchange and hydrological response in a headwater-dominated high elevation, mountainous catchment in East River Watershed, Colorado, USA. In order to isolate the effect of surface–subsurface exchange on the hydrological response, we compare three model variations that differ only in soil permeability. Traditional methods of hydrograph analysis that have been developed for headwater catchments may fail to properly characterize catchments, where catchment response is tightly coupled to headwater inflow. Analyzing the spatially distributed hydrological response of such catchments gives additional information on the catchment functioning. Thus, we compute hydrographs, hydrological indices, and spatio-temporal distributions of hydrological variables. The indices and distributions are then linked to the hydrograph at the outlet of the catchment. Our results show that changes in the surface–subsurface exchange fluxes trigger different flow regimes, connectivity dynamics, and runoff generation mechanisms inside the catchment, and hence, affect the distributed hydrological response. Further, changes in surface–subsurface exchange rates lead to a nonlinear change in the degree of connectivity—quantified through the number of disconnected clusters of ponding water—in the catchment. Although the runoff formation in the catchment changes significantly, these changes do not significantly alter the aggregated streamflow hydrograph. This hints at a crucial gap in our ability to infer catchment function from aggregated signatures. We show that while these changes in distributed hydrological response may not always be observable through aggregated hydrological signatures, they can be quantified through the use of indices of connectivity.

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Section: Resultssupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Understanding the hydrological response of a headwater-dominated catchment by analysis of distributed surface–subsurface interactions

Özgen‐Xian

Molins

Johnson

et al. 2023

Sci Rep

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“…As a result, it is important to adopt appropriate measures and methods during the ecological restoration of large mine dumps. Some studies have shown that microtopography modifications affect rainfall infiltration, control soil erosion (Prosdocimi et al, 2017;Eltner et al, 2018;Caviedes-Voullième et al, 2021), improve surface habitat, and promote water and soil conservation as well as vegetation restoration (Perreault et al, 2017;Yixia Wang et al, 2018;Wang et al, 2020;Mata-González et al, 2022). Following microtopography modifications, vegetation measures can significantly increase the content of nitrogen, phosphorus, potassium, and other organic matter in the damaged soil of mining areas, which further improves the physical and chemical properties of this soil, as well its erosion resistance (Orgiazzi and Panagos 2018;Zhao et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Microtopographic reconstruction improves soil erosion resistance and vegetation characteristics on the slopes of large dump sites in semi-arid areas

Tian

Yin

Wang

et al. 2022

Front. Environ. Sci.

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In view of the management of slopes in large mine dumps in semi-arid regions, this study explored different methods for controlling soil erosion and improving the microenvironment of the surface of such slopes. Focusing on microtopography modifications and vegetation measures on the slopes of a large mine dump in a semi-arid region, the soil erosion resistance of the slope was continuously monitored using installed observation plots. In addition, the characteristics of plant communities that thrived on the dump were investigated. The results indicate that the soil erosion resistance, soil organic matter content, and biodiversity increased to different degrees in the large mine dump that experienced microtopography modifications and implemented vegetation measures compared with those of slopes managed only by soil cover and planting. Compared with that in the control plot, under the same vegetation restoration measures, the macroaggregate content in the four plots that implemented microtopography modifications increased by 20%, 24%, 21%, and 30%; the soil erodibility (K-factor) decreased by 7.8%, 8.5%, 10%, and 10.7%; and the soil organic matter increased by 2%, 4.5%, 3.4%, and 4.7%. Microtopography modification consisting of U-shaped blocking boards and fixed rods embedded in the slope, combined with vegetation measures, resulted in a protective effect, which in turn induced the highest diversity, evenness, and richness index values of 2.35, 0.87, and 1.94, respectively. The study results revealed that a combination of microtopography modifications and vegetation measures can be used to achieve effective vegetation restoration, prevent soil erosion, and create different microhabitats, indicating that our approach is an effective way to control critical issues affecting large mine dumps in semi-arid regions.

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Water‐controlled ecosystems as complex networks: Evaluation of network‐based approaches to quantify patterns of connectivity

Tiwari,

Brizuela,

Hein

et al. 2024

Ecohydrology

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This study provides a new perspective on understanding the intricacies of water‐mediated connectivity in ecosystems, bridging landscape ecology and geomorphology through network science. We highlight dryland and river‐floodplain ecosystems as distinct examples of contrasting water‐controlled systems. We (1) discuss central considerations in developing structural connectivity and functional connectivity networks of water‐mediated connectivity; (2) quantify the emergent patterns in these networks; and (3) evaluate the capacity of network science tools for investigating connectivity characteristics. With a focus on strength (weights) and direction, connectivity is quantified using seven parameters at both network and node levels. We find that link density, betweenness centrality and page rank centrality are highly sensitive to directionality; global efficiency and degree centrality are particularly sensitive to weights; and relative node efficiency remains unaffected by weights and directions. Our study underscores how network science approaches can transform how we quantify and understand water‐mediated connectivity, especially in consideration of the role(s) of weights and directionality. This interdisciplinary perspective, linking ecology, hydrology and geomorphology, has implications for both theoretical insights and practical applications in environmental management and conservation efforts.

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Interactions of Microtopography, Slope and Infiltration Cause Complex Rainfall‐Runoff Behavior at the Hillslope Scale for Single Rainfall Events

Abstract: Microtopography plays a relevant role in rainfall-runoff-infiltration partitioning • Different slopes and microtopographies result in a set of hydrodynamic regimes • The hydrodynamic regimes can be related to hydrological regimes

Cited by 21 publications

References 98 publications

Understanding the hydrological response of a headwater-dominated catchment by analysis of distributed surface–subsurface interactions

Understanding the hydrological response of a headwater-dominated catchment by analysis of distributed surface–subsurface interactions

Microtopographic reconstruction improves soil erosion resistance and vegetation characteristics on the slopes of large dump sites in semi-arid areas

Water‐controlled ecosystems as complex networks: Evaluation of network‐based approaches to quantify patterns of connectivity

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