Effects of instream wood reintroduction on transport and storage processes in a lowland sandy stream DOI Creative Commons
Ben Howard, Ian Baker, Wouter Buytaert

и другие.

Frontiers in Earth Science, Год журнала: 2025, Номер 13

Опубликована: Май 23, 2025

The reintroduction of instream wood is a common technique to restore degraded stream, for example reinstate transport and storage processes - primary controls the movement water, solutes, particulates through stream corridor with aim initiating shift towards more natural or sustainable state. In United Kingdom, this kind restoration occurs predominantly in lowland sandy streams, yet date no study has explicitly investigated its effects on such contexts. Here, we used before-after-control-impact (BACI) experiment test reintroducing under range discharges ( Q ), an average 0.0079 m 3 /s. restored reach, as compared control hydraulic retention time increased by 27.6%, transient 28.4%, residence therein 13%. Although these differences were not statistically significant, attribute inevitable large variability field tests controlled laboratory environments. We interpret observed changes indication potential increase overall but limited subsurface storage, especially during higher conditions. Overall, our results suggest also highlight challenges evidencing effects. Given sensitivity environmental setting, it may be challenging predict based small set conditions generalizations.

Язык: Английский

Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j DOI Creative Commons
Josh Wolstenholme, Chris Skinner, David Milan

и другие.

Geoscientific model development, Год журнала: 2025, Номер 18(5), С. 1395 - 1411

Опубликована: Март 5, 2025

Abstract. Leaky wooden dams (LDs) are woody structures installed in headwater streams that aim to reduce downstream flood risk through increasing in-channel roughness and decreasing river longitudinal connectivity order desynchronise peaks within catchments. Hydrological modelling of these omits sediment transport processes since the impact on flow routing is considered negligible comparison in-stream hydraulics. Such also excluded grounds computational expense. Here we present a study advances our ability model leaky roughness-based representation landscape evolution CAESAR-Lisflood, introducing flexible representative approach simulating LDs reach broader catchment-scale processes. The hydrological geomorphological sensitivity tested against grid resolution variability key parameters such as dam gap size roughness. influence isolation from whilst evaluating expense, domain outputs, internal evolution. findings show increased volume water stored test (channel length 160 m) by up an magnitude, it reduced discharge 31 % during storm event (6 h, 1-in-10-year event). We demonstrate how this due acting induce geomorphic change thus channel When considering larger resolutions, however, results care must be overestimations localised scour deposition behavioural approaches should adopted when using CAESAR-Lisflood absence robust empirical validation data.

Язык: Английский

Процитировано

2
Potential use of wood addition for restoring ecosystem metabolism and nutrient uptake in a subtropical river DOI
João Miguel Merces Bega, Wesley Aparecido Saltarelli, Tatiana Heid Furley

и другие.

Ecohydrology & Hydrobiology, Год журнала: 2025, Номер unknown, С. 100665 - 100665

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Effects of instream wood reintroduction on transport and storage processes in a lowland sandy stream DOI Creative Commons
Ben Howard, Ian Baker, Wouter Buytaert

и другие.

Frontiers in Earth Science, Год журнала: 2025, Номер 13

Опубликована: Май 23, 2025

The reintroduction of instream wood is a common technique to restore degraded stream, for example reinstate transport and storage processes - primary controls the movement water, solutes, particulates through stream corridor with aim initiating shift towards more natural or sustainable state. In United Kingdom, this kind restoration occurs predominantly in lowland sandy streams, yet date no study has explicitly investigated its effects on such contexts. Here, we used before-after-control-impact (BACI) experiment test reintroducing under range discharges ( Q ), an average 0.0079 m 3 /s. restored reach, as compared control hydraulic retention time increased by 27.6%, transient 28.4%, residence therein 13%. Although these differences were not statistically significant, attribute inevitable large variability field tests controlled laboratory environments. We interpret observed changes indication potential increase overall but limited subsurface storage, especially during higher conditions. Overall, our results suggest also highlight challenges evidencing effects. Given sensitivity environmental setting, it may be challenging predict based small set conditions generalizations.

Язык: Английский

Процитировано

0