Projecting Future Impacts of Global Change Including Fires on Soil Erosion to Anticipate Better Land Management in the Forests of NW Portugal

Pastor, Amandine; Nunes, João Pedro; Ciampalini, Rossano; Koopmans, Myke; Baartman, Jantiene; Huard, Frédéric; Calheiros, Tomás; Le-Bissonnais, Yves; Keizer, Jan Jacob; Raclot, Damien

doi:10.3390/w11122617

Cited by 34 publications

(24 citation statements)

References 60 publications

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“…The Águeda region has a large body of research since the 1980s. This includes work on forest hydrology (Boulet et al, 2015; Hawtree et al, 2015; Leighton‐Boyce et al, 2005; Leighton‐Boyce, Doerr, Shakesby, & Walsh, 2007; Santos et al, 2016), the impacts of fires on hydrological and erosion processes (Ferreira, 1997; Ferreira et al, 2008; Häusler et al, 2018; Shakesby, Boakes, Coelho, Gonçalves, & Walsh, 1996), hydrological modelling (Nunes et al, 2018; Pastor et al, 2019; Tavares Wahren et al, 2016), and some research on agricultural hydrology (Nunes, Bernard‐Jannin, et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

“…Similarly, structural landscape management, for example, with riparian vegetation, could help prevent eroded sediments from reaching the streams (Pastor et al, 2019).…”

Section: Implications For the Role Of Fires On Hydrological And Sedmentioning

confidence: 99%

“…In these conditions, sediment tracing can be used to overcome logistical constraints by mapping sediment transport in the catchment with limited samples and/or after it occurs (García-Comendador et al, 2020). Alternatively, numerical hydrological and erosion modelling could provide an interesting approach to study catchment processes, as exemplified for this catchment by Nunes, Quintanilla, et al (2018) and Pastor et al (2019).…”

Section: Limitations and Future Workmentioning

confidence: 99%

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Impacts of wildfire and post‐fire land management on hydrological and sediment processes in a humid Mediterranean headwater catchment

Nunes

Bernard-Jannin

Rodríguez‐Blanco

et al. 2020

Hydrological Processes

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The extensive afforestation of the Mediterranean rim of Europe in recent decades has increased the number of wildfire disturbances on hydrological and sediment processes, but the impacts on headwater catchments is still poorly understood, especially when compared with the previous agricultural landscape. This work monitored an agroforestry catchment in the northwestern Iberian Peninsula, with plantation forests mixed with traditional agriculture using soil conservation practices, for one year before the fire and for three years afterwards, during which period the burnt area was ploughed and reforested. During this period, continuous data was collected for meteorology, streamflow and sediment concentration at the outlet, erosion features were mapped and measured after major rainfall events, and channel sediment dynamics were monitored downstream from the agricultural and the burnt forest area. Data from 202 rainfall events with over 10 mm was analysed in detail. Results show that the fire led to a notable impact on sediment processes during the first two post-fire years, but not on streamflow processes; this despite the small size of the burnt area (10% of the catchment) and the occurrence of a severe drought in the first year after the fire. During this period, soil loss at the burnt forest slopes was much larger than that at most traditionally managed fields, and, ultimately, led to sediment exhaustion. At the catchment scale, storm characteristics were the dominant factor behind streamflow and sediment yield both before and after the fire. However, the data indicated a shift from detachment-limited sediment yield before the fire, to transport-limited sediment yield afterwards, with important increases in streamflow sediment concentration. This indicates that even small fires can temporarily change sediment processes in agroforestry catchments, with potential negative consequences for downstream water quality.

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Section: Methodsmentioning

confidence: 99%

“…Similarly, structural landscape management, for example, with riparian vegetation, could help prevent eroded sediments from reaching the streams (Pastor et al, 2019).…”

Section: Implications For the Role Of Fires On Hydrological And Sedmentioning

confidence: 99%

Section: Limitations and Future Workmentioning

confidence: 99%

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Impacts of wildfire and post‐fire land management on hydrological and sediment processes in a humid Mediterranean headwater catchment

Nunes

Bernard-Jannin

Rodríguez‐Blanco

et al. 2020

Hydrological Processes

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“…The second is paying more attention to the soil-atmosphere intersections, especially the greenhouse gas emission during the process of soil erosion (Bradford et al, 2016;Gao et al, 2018). The third is projecting the vegetation changes, soil erosion export and nutrient loss in the changing climate conditions (Pastor et al, 2019), which has a significant to biogeochemical cycles and will provide references to the policy-making for local government.…”

Section: Challenges and Future Directionsmentioning

confidence: 99%

Quantifying the Effects of Vegetation Restorations on the Soil Erosion Export and Nutrient Loss on the Loess Plateau

et al. 2020

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The transport of eroded soil to rivers changes the nutrient cycles of river ecosystems and has significant impacts on the regional eco-environment and human health. The Loess Plateau, a leading vegetation restoration region in China and the world, has experienced severe soil erosion and nutrient loss, however, the extent to which vegetation restoration prevents soil erosion export (to rivers) and it caused nutrient loss is unknown. To evaluate the effects of the first stage of the Grain for Green Project (GFGP) on the Loess Plateau (started in 1999 and ended in 2013), we analyzed the vegetation change trends and quantified the effects of GFGP on soil erosion export (to rivers) and it caused nutrient loss by considering soil erosion processes. The results were as follows: (1) in the first half of study period (from 1982 to 1998), the vegetation cover changed little, but after the implementation of the first stage of the GFGP (from 1999 to 2013), the vegetation cover of 75.0% of the study area showed a significant increase; (2) The proportion of eroded areas decreased from 41.8 to 26.7% as a result of the GFGP, and the erosion intensity lessened in most regions; the implementation significantly reduce the soil nutrient loss; (3) at the county level, soil erosion export could be avoided significantly by the increasing of vegetation greenness in the study area (R = −0.49). These results illustrate the relationships among changes in vegetation cover, soil erosion and nutrient export, which could provide a reference for local government for making ecology-relative policies.

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“…Finally, extensive revegetation on formerly cultivated lands has favored the occurrence and propagation of wildfires (e.g. [57,58]), which usually cause intense soil erosion in the first years following the fire due to greater overland flow [59].…”

Section: Brief Review Of the Main Impacts Of Farmland Abandonment On mentioning

confidence: 99%

Critical Environmental Issues Confirm the Relevance of Abandoned Agricultural Land

Lana-Renault

Nadal‐Romero

Cammeraat

et al. 2020

Water

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Large areas worldwide have been affected by farmland abandonment and subsequent plant colonization with significant environmental consequences. Although the process of farmland abandonment has slowed down, vegetation recovery in abandoned lands is far from complete. In addition, agricultural areas and pasture lands with low-intensity activities could be abandoned in the near future. In this foreword, we review current knowledge of the impacts of farmland abandonment on water resources and soil conservation, and we highlight the open questions that still persist, in particular regarding terraced landscapes, afforested areas, abandonment of woody crops, traditional irrigated fields, solute yields, long-term trends in the response of abandoned areas, and the management of abandoned farmland. This Special Issue includes seven contributions that illustrate recent research into the hydrological, geomorphological, and edaphological consequences of farmland abandonment.

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Projecting Future Impacts of Global Change Including Fires on Soil Erosion to Anticipate Better Land Management in the Forests of NW Portugal

Cited by 34 publications

References 60 publications

Impacts of wildfire and post‐fire land management on hydrological and sediment processes in a humid Mediterranean headwater catchment

Impacts of wildfire and post‐fire land management on hydrological and sediment processes in a humid Mediterranean headwater catchment

Quantifying the Effects of Vegetation Restorations on the Soil Erosion Export and Nutrient Loss on the Loess Plateau

Critical Environmental Issues Confirm the Relevance of Abandoned Agricultural Land

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