Evaluating the Impact of Roof Rainwater Harvesting on Hydrological Connectivity and Urban Flood Mitigation

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104022 - 104022

Опубликована: Янв. 1, 2025

Язык: Английский

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HOTSED: A new integrated model for assessing potential hotspots of sediment sources and related sediment dynamics at watershed scale

International Soil and Water Conservation Research, Год журнала: 2024, Номер 13(1), С. 80 - 101

Опубликована: Июнь 17, 2024

In this paper we introduce HOTSED, a novel, innovative GIS-based model designed for assessing potential hotspots of sediment dynamics at watershed scale. HOTSED integrates geomorphic spatial information with both structural and functional properties connectivity. provides single intuitive output that depicts the location source hotspots. Moreover, it enables identification "relative hazard" classes production related effects. The general methodological framework is based on initial elaboration an Inventory Map (IM) sediment-related landforms processes, along implementation corresponding database. Subsequently, used data stored in IM to estimate Potential Sediment Sources (PSS) through relative scoring system. Furthermore, computed Structural Connectivity (STC) Transport (PST) by combining terrain hydrological parameters, vegetation roughness, rainfall erosivity. Afterwards, PSS, STC, PST components are integrated raster-based calculation method yielding model. We tested procedure upper Val d'Arda-Mignano watershed, which representative geomorphologically highly active Mediterranean area Northern Apennines (Italy). Through photo-interpretation, analysis, fieldwork, mapped features total 4640 ha including: badlands gullies (0.26%), rill-interrill erosion (15.03%), fluvial (0.03%), landslides (70.06%), litho-structural erosional systems (0.87%), slope deposits (12.56%), alluvial (1.19%). revealed very high hazard located near main channels or upstream reservoir. These areas often linked connected drainage system frequently associated other processes like bank surficial soil erosion. also highlighted linear drainages flowing alongside intersecting complex such as landslides. identified where sediments depositional landforms, exhibiting low potential, considering Our conceptual generally applicable but proves be particularly effective characterized polygenetic systems, Apennines. offers valuable tool authorities support sustainable reservoir management.

Язык: Английский

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Hydrological connectivity: a review and emerging strategies for integrating measurement, modeling, and management

Frontiers in Water, Год журнала: 2025, Номер 7

Опубликована: Март 31, 2025

This review synthesizes methods for measuring, modeling, and managing hydrologic connectivity, offering pathways to improve practices address environmental challenges (e.g., climate change) sustainability. As a key driver of water movement nutrient cycling, connectivity influences flood mitigation, quality regulation, biodiversity conservation. However, traditional field-based dye tracing), indirect measurements runoff analysis), remote sensing techniques InSAR) often struggle capture the complexity catchment-scale interactions. Similarly, modeling approaches—including process-based percolation theory-based models, graph theory, entropy-based metrics—face limitations in fully representing these interconnected processes. Both measurement are constrained by inadequate spatial temporal coverage, high data demands, computational complexity, difficulties subsurface connectivity. Subsequently, we critique current management that prioritize isolated variables streamflow, sediment transport) over system-wide strategies emphasize need adaptive, connectivity-based approaches resource planning restoration. Moving forward, highlight importance interdisciplinary collaboration, technological innovations AI-driven real-time monitoring), integrated frameworks measurement, adaptive restore fragmented networks. approach sets stage transformative management, fostering proactive policy development stakeholder engagement.

Язык: Английский

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Introduction

Earth and environmental sciences library, Год журнала: 2025, Номер unknown, С. 1 - 18

Опубликована: Янв. 1, 2025

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Source-to-Sink Sediment Transfer Within the Catchments of Major Dams

Earth and environmental sciences library, Год журнала: 2025, Номер unknown, С. 107 - 127

Опубликована: Янв. 1, 2025

Язык: Английский

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Deciphering Sediment Pathways: Novel Integrated Approaches for Sediment Source Identification and Vulnerability Prediction by Machine Learning Models in Major Dam Catchments in Chota Nagpur Plateau, India

Physics and Chemistry of the Earth Parts A/B/C, Год журнала: 2025, Номер unknown, С. 103974 - 103974

Опубликована: Май 1, 2025

Язык: Английский

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Functional vegetation community responses to soil and topographic factors in the Loess Plateau of China

Land Degradation and Development, Год журнала: 2023, Номер 34(17), С. 5355 - 5372

Опубликована: Авг. 9, 2023

Abstract Given the developmental program outlined in United Nations Sustainable Development Goal 15 (Life on Land) and to effectively address challenge of biodiversity decline while mitigating adverse effects climate change, particularly drought, terrestrial forest ecosystems, a fundamental reorientation global restoration paradigms is warranted. It imperative move beyond narrow emphasis expanding area instead prioritize enhancement functional attributes within these ecosystems. However, differential response mechanisms ecosystem communities main plant types (PFTs) environmental factors, especially soil topography, remains unclear, at level. Here, we divided 93 sites study into seven groups through Two‐way indicator species analysis (TWINSPAN), studied different communities, namely dynamic succession, richness, PFT compositional differences. We also analyzed various PFTs community topographic factors using canonical correspondence (CCA). The results were as follows: (1) With successional stages PFTs, vegetation diversity across multiple inceased, tree shrub proportions importance increased, herbs decreased. (2) From arid barren areas (i.e., G2), humid fertile G6 G7), differences, their responses found, namely, xerophytic, annual biennial gradually changed mesophytic, hygrophytic, perennial (richness increased 6.94 ~ 27.33%, important value (IV) 8.73 29.45%) for shrubs herbs. (3) Functional display distinct sensitivities evidenced by notable increase richness IV deciduous broad‐leaved species, rendering more responsive SOC AS, whereas evergreen coniferous trees (e.g., Pinus tabuliformis Carr. ) sensitive altitude (AL) exhibited tendency transition from plantations natural secondary forests predominantly higher altitudes (above 1200 m). Our findings suggest that site conditions influence scenarios, adjustments topography affect whole succession processes, which can profoundly impact function predictions based changes Loess Plateau China.

Язык: Английский

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Application of One-Dimensional Hydrodynamic Coupling Model in Complex River Channels: Taking the Yongding River as an Example

Water, Год журнала: 2024, Номер 16(8), С. 1161 - 1161

Опубликована: Апрель 19, 2024

River conditions are complex and affected by human activities. Various hydraulic structures change the longitudinal slope cross-sectional shape of riverbed, which has a significant impact on simulation water-head evolution. With continuous population growth, hydrological characteristics Yongding Basin have undergone changes. Too little or too much water discharge may be insufficient to meet downstream ecological needs lead wastage resources, respectively. It is necessary consider whether total flow in each key section can achieve expected value under different flows. Therefore, reliable computer model needed simulate evolution head changes level rates efficient resource allocation. A one-dimensional hydrodynamic coupling based Saint-Venant equations was established for Basin. Different methods were employed calibrate parameters, using centralised replenishment data autumn 2022, results verified spring 2023. The maximum error arrival time between river sections 4 h, from Guanting Reservoir cross-section 6 h. less than 5 m3/s, changing trend over consistent with measured data. effectively solved problem low accuracy calculation when traditional movement channels River. output include arrives at section, process storage lakes gravel pits, surface area section. This paper reports that support development an compensation scheme

Язык: Английский

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Spatial and temporal change of hydrological connectivity in the Wusuli River Basin

Journal of Hydrology Regional Studies, Год журнала: 2024, Номер 53, С. 101814 - 101814

Опубликована: Май 11, 2024

The study region of this paper is the Wusuli River basin, which comprised nine sub-basins. basin located on border between China and Russia. We investigated hydrological connectivity an international boundary river that has received little attention. spatial temporal evolution over last 38 years was characterized using a geostatistical function combined with remote sensing technique. In particular, some key sub-basins were identified to help strengthen China-Russian cooperation ecological protection basin. results show in northwestern unstable several surges from 1984 2021. Analyzed perspective, effective range expanding showing overall upward trend due increased fluctuations rainfall. right bank better than left influence topography. Stable pathways are must for efficient within watershed. Another finding capacity resist extreme rainfall weakening.

Язык: Английский

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Current Trends and Future Perspectives of Integrated Watershed Management

South-east European forestry, Год журнала: 2024, Номер 15(1), С. 103 - 116

Опубликована: Июнь 20, 2024

The significance of Integrated Watershed Management (IWM) has increased in recent years due to its ecological, economic, and social implications. To align with these principles achieve efficiency, watershed management necessitates the evaluation integration numerous diverse factors. This literature review aims examine current research trend IWM association various thematic elements. identified elements include water resources management, decision-making processes, agricultural forested watersheds, soil natural hazards, stakeholder involvement, climate change, policy frameworks, cost risk analysis, livelihoods, ecosystem services, habitat biodiversity conservation, tourism. predominant were resource decision-making, watersheds. countries that most frequently referred examined Ethiopia, China, USA, Iran. A synthesis data obtained via analysis scientific trends specified domain can serve as a basis for establishment strategizing comprehensive management. While it is important consider all aspects combined practice, also essential have grasp each factor vital step integrating them. participants involved this endeavour, hailing from professional backgrounds, must engage close collaboration successfully integrate aforementioned aspects. collaborative method only chance success if demonstrate high level dedication. dedication required should be grounded understanding difficulties demands are mutually shared by parties.

Язык: Английский

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