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“…The recharge in the basin increased 6% in the scenario with the lowest percentage of reforestation, reaching 20% in the scenario of a higher percentage of restoration (30%). These results reflect a regularization of the base flow, more visible in sub-basins (Vogl et al, 2016). The components of the water balance are affected by the reforestation of cultivated areas, mainly the groundwater recharge (Woldesenbet et al, 2017), with the increasing soil water infiltration (Yu et al, 2015), as well as a significant reduction of runoff (Li et al, 2012).…”
Section: Resultsmentioning
confidence: 86%
“…The payment for environmental services tends to benefit the understanding of water and soil conservation activities, increasing the supply of environmental services and their understanding of the value of these services and their contribution to the various sectors of society (Vogl et al, 2016). Based on biophysical processes to demonstrate the economic return of integrated environmental interventions, Vogl et al (2017) demonstrated the good economic return of investments considering multiple hydrological services.…”
The Brazilian semiarid region present high rainfall variability and long dry periods. Thus, the main springs and streams are generally intermittent, and both native vegetation and human activities have a strong influence on hydrological processes and the water yield in the watershed. The aim of this study was to investigate the impacts of reforestation of the arboreal Caatinga on the availability of water in a representative basin of the Northeast semiarid with strong anthropic influence, considering a period of severe water scarcity from 2012 to 2015, using the SWAT model as a management tool. The SWAT model successfully simulated the flow hydrograph for the period from 2000 to 2015, with Nash-Sutcliffe (NS) efficiency coefficient of 0.77 and 0.55 in the calibration and validation. The simulated reforestation scenarios showed a 6 to 20% increase in recharge and soil water storage of 9 to 28%. Simulations of different scenarios of the Caatinga re-composition in agricultural areas highlight the strong impact of arboreal vegetation on hydrological processes, in particular on soil water infiltration and soil moisture increase.
“…The recharge in the basin increased 6% in the scenario with the lowest percentage of reforestation, reaching 20% in the scenario of a higher percentage of restoration (30%). These results reflect a regularization of the base flow, more visible in sub-basins (Vogl et al, 2016). The components of the water balance are affected by the reforestation of cultivated areas, mainly the groundwater recharge (Woldesenbet et al, 2017), with the increasing soil water infiltration (Yu et al, 2015), as well as a significant reduction of runoff (Li et al, 2012).…”
Section: Resultsmentioning
confidence: 86%
“…The payment for environmental services tends to benefit the understanding of water and soil conservation activities, increasing the supply of environmental services and their understanding of the value of these services and their contribution to the various sectors of society (Vogl et al, 2016). Based on biophysical processes to demonstrate the economic return of integrated environmental interventions, Vogl et al (2017) demonstrated the good economic return of investments considering multiple hydrological services.…”
The Brazilian semiarid region present high rainfall variability and long dry periods. Thus, the main springs and streams are generally intermittent, and both native vegetation and human activities have a strong influence on hydrological processes and the water yield in the watershed. The aim of this study was to investigate the impacts of reforestation of the arboreal Caatinga on the availability of water in a representative basin of the Northeast semiarid with strong anthropic influence, considering a period of severe water scarcity from 2012 to 2015, using the SWAT model as a management tool. The SWAT model successfully simulated the flow hydrograph for the period from 2000 to 2015, with Nash-Sutcliffe (NS) efficiency coefficient of 0.77 and 0.55 in the calibration and validation. The simulated reforestation scenarios showed a 6 to 20% increase in recharge and soil water storage of 9 to 28%. Simulations of different scenarios of the Caatinga re-composition in agricultural areas highlight the strong impact of arboreal vegetation on hydrological processes, in particular on soil water infiltration and soil moisture increase.
“…At the regional scale, water resources assessments are needed to explore and implement efficient water‐allocation plans (Kirby, Connor, Ahmad, Gao, & Mainuddin, ). For example, the development of hydropower production facilities in Africa or South‐East Asia requires the prediction of annual and monthly flows (Vogl et al, ). In Latin America, the development of investment in watershed services programs requires stakeholders to estimate the effect of land management on hydrological services (Bremer et al, ; Guswa et al, ).…”
Hydrologic models are useful to understand the effects of climate and land-use changes on dryseason flows. In practice, there is often a trade-off between simplicity and accuracy, especially when resources for catchment management are scarce. Here, we evaluated the performance of a monthly rainfall-runoff model (dynamic water balance model, DWBM) for dry-season flow pre-
“…Erosion control is an important ecosystem service for the hydropower sector, since higher sediment concentrations in streams decrease electricity production (Goldstein et al, 2017;Vogl et al, 2016). As priority areas for the reduction in sediment export, those parts of sub-watersheds that flow to the water catchment points of the Costa Rican hydroelectricity plants are included in the spatial analysis (Figure 33a).…”
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