Post-wildfire riparian forest recovery processes along a regulated river corridor

2020 ◽  
Vol 478 ◽  
pp. 118513 ◽  
Author(s):  
Andrew W. Tranmer ◽  
Rohan Benjankar ◽  
Daniele Tonina
Keyword(s):  
Riparian Forest ◽  
Forest Recovery ◽  
Regulated River ◽  
Recovery Processes ◽  
River Corridor

scholarly journals Environmental structure and relationships in the setting of natural water springs in a Lower Highland Seasonal Forest in Brazilian South

2018 ◽  
Vol 48 (11) ◽  
Author(s):  
Paulo Alfonso Floss ◽  
Solon Jonas Longhi ◽  
Malcon do Prado Costa ◽  
Elzira Cecília Serafini Floss
Keyword(s):  
Natural Water ◽  
Riparian Forest ◽  
Forest Recovery ◽  
Physical Analysis ◽  
Soil Variables ◽  
Environmental Structure ◽  
Calcium Magnesium ◽  
Initial Recovery ◽  
Edaphic Variables ◽  
Water Springs

ABSTRACT: The aim of this research was to characterize an environmental structure in the setting of tree natural water springs in a Lower Highland Seasonal Forest, and to verify the relationship between community demography and soil variables as subsidies for species identification in riparian forest recovery programs in similar environments. The research was carried out in the National Forest of Chapecó, located in the west of the state of Santa Catarina in the southern region of Brazil. For this, three water springs were demarcated, where 26 plots of 200m² in each were allocated. All individuals with diameter at 1.30m of soil height ≥5.0cm were measured. Soil samples (0 to 20cm depth) were collected in the plots for chemical and physical analysis. To relate the abundance of the species to the edaphic variables, the Canonical Correspondence Analysis (CCA) was used. A total of 76 species belonging to 64 genera of 36 botanical families were reported in the study area. The families Fabaceae and Myrtaceae presented greater floristic richness. The edaphic variables that most influenced the distribution of the species were aluminum saturation and calcium, magnesium and potassium contents. Specific groups of indicator species were formed for each water spring. The species designated as generalists are the most recommended for the initial filling and recovery of degraded springs. Further rare species and with low density must be included after the initial recovery to increase diversity.

scholarly journals River Dynamics Control Transit Time Distributions and Biogeochemical Reactions in a Dam‐Regulated River Corridor

2020 ◽  
Vol 56 (9) ◽  
Author(s):  
Xuehang Song ◽  
Xingyuan Chen ◽  
John M. Zachara ◽  
Jesus D. Gomez‐Velez ◽  
Pin Shuai ◽  
...  
Keyword(s):  
Transit Time ◽  
Regulated River ◽  
River Dynamics ◽  
River Corridor

scholarly journals BEHAVIOR OF THE EMERGENCE OF NATIVE FOREST SEEDLINGS FOR THE PURPOSE OF RECOVERY OF THE RIPARIAN FOREST

FLORESTA ◽  
2018 ◽  
Vol 49 (1) ◽  
pp. 057
Author(s):  
Janisson Batista de Jesus ◽  
Robério Anastácio Ferreira ◽  
Dráuzio Correia Gama
Keyword(s):  
Riparian Forest ◽  
Block Design ◽  
Forest Recovery ◽  
Native Forest ◽  
Forest Species ◽  
Riparian Areas ◽  
Randomized Block Design ◽  
Guazuma Ulmifolia ◽  
Four Blocks ◽  
Over Time

Understanding the behavior of the emergence of native forest seeds is essential to achieve greater successes in forest recovery. Therefore, this study aimed to evaluate the emergence of native forest species (Cassia grandis L.F., Cecropia pachystachya Trec., Enterolobium contortisiliquum (Vell.) Morong, Guazuma ulmifolia Lam., and Libidibia ferrea var. leiostachya (Benth.) L.P.Queiroz.) in riparian areas of the Piauitinga River, in the municipality of Lagarto (state of Sergipe, Brazil). The experiment was carried out in a randomized block design (DBC) with four blocks in triple scheme (4 x 2 x 6): four forest species emerged (Cassia grandis, Enterolobium contortisiliquum, Guazuma ulmifolia, Libidibia ferrea var. leiostachya), with and without treatment to overcome dormancy, evaluated every fortnight for 90 days (6 periods). It was verified by the statistical analysis that the four species that had emergencies interacted in the two treatments used throughout the six evaluation periods. The species, in both treatments, presented a large number of seeds emerged in the first weeks after sowing, reducing over time. The species studied have a characteristic pattern of emergence over time, considering both seeds with and without treatment to overcome dormancy.

Microbiological indicators of soil quality in a riparian forest recovery gradient

2013 ◽  
Vol 53 ◽  
pp. 313-320 ◽  
Author(s):  
R.L.F. Vasconcellos ◽  
J.A. Bonfim ◽  
F.D. Andreote ◽  
L.W. Mendes ◽  
D. Baretta ◽  
...  
Keyword(s):  
Soil Quality ◽  
Riparian Forest ◽  
Forest Recovery ◽  
Microbiological Indicators

scholarly journals Machine Learning Analysis of Hydrologic Exchange Flows and Transit Time Distributions in a Large Regulated River

2021 ◽  
Vol 4 ◽  
Author(s):  
Huiying Ren ◽  
Xuehang Song ◽  
Yilin Fang ◽  
Z. Jason Hou ◽  
Timothy D. Scheibe
Keyword(s):  
Machine Learning ◽  
Transit Time ◽  
Numerical Models ◽  
Data Availability ◽  
Regulated River ◽  
Exchange Flows ◽  
Extreme Gradient Boosting ◽  
Hydrologic Exchange ◽  
River Corridor ◽  
River Velocity

Hydrologic exchange between river channels and adjacent subsurface environments is a key process that influences water quality and ecosystem function in river corridors. High-resolution numerical models were often used to resolve the spatial and temporal variations of exchange flows, which are computationally expensive. In this study, we adopt Random Forest (RF) and Extreme Gradient Boosting (XGB) approaches for deriving reduced order models of hydrologic exchange flows and associated transit time distributions, with integrated field observations (e.g., bathymetry) and hydrodynamic simulation data (e.g., river velocity, depth). The setup allows an improved understanding of the influences of various physical, spatial, and temporal factors on the hydrologic exchange flows and transit times. The predictors also contain those derived using hybrid clustering, leveraging our previous work on river corridor system hydromorphic classification. The machine learning-based predictive models are developed and validated along the Columbia River Corridor, and the results show that the top parameters are the thickness of the top geological formation layer, the flow regime, river velocity, and river depth; the RF and XGB models can achieve 70% to 80% accuracy and therefore are effective alternatives to the computational demanding numerical models of exchange flows and transit time distributions. Each machine learning model with its favorable configuration and setup have been evaluated. The transferability of the models to other river reaches and larger scales, which mostly depends on data availability, is also discussed.

scholarly journals Lessons Learned from the Water Producer Project in the Atlantic Forest, Brazil

Forests ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 1031 ◽  
Author(s):  
Ricardo A. G. Viani ◽  
Henrique Bracale ◽  
Denise Taffarello
Keyword(s):  
Atlantic Forest ◽  
Forest Restoration ◽  
Large Scale ◽  
Forest Conservation ◽  
Forest Cover ◽  
Riparian Forest ◽  
Land Use Changes ◽  
Project Planning ◽  
Lessons Learned ◽  
Forest Recovery

Forest and landscape restoration (FLR) is a powerful strategy for large-scale tropical forest recovery, and payment for ecosystem services (PES) is used to support FLR programs and projects on privately-owned land. In this article, we discuss the lessons learned from the Water Producer Project, a pioneer, multiple-stakeholder, and PES-supported FLR project in the Atlantic Forest, south-eastern Brazil. The project was implemented in four landscapes located in two municipalities. Altogether, 41 PES contracts with landowners were signed, resulting in various FLR practices being implemented in a total of 342.4 ha (64.2 ha for riparian forest restoration, 90.8 ha for soil conservation, and 187.4 for forest conservation) of land, which represents 39% of the project goal. As of the end of the project, only 50% (USD 49,250) of the available PES funds had been spent. However, funds spent on project planning, implementation, communication, and monitoring were 12 times greater than those spent on PES. Several challenges restricted the progress and monitoring of the project. The main issue was landowner participation and/or engagement. In terms of lessons learned, we highlight that PES schemes are more complex than initially thought, and that sufficient funding does not guarantee the success of FLR projects. It is essential to promote landowner participation and engagement by considering them key players in FLR projects. Finally, acceptance from landowners was higher and implementation was easier for forest conservation practices that required no land-use changes. Thus, we suggest that similar future projects should focus on targeting private properties in marginal agricultural lands with a high probability of natural regeneration. Alternatively, future projects could focus on lands with remnant forest cover of high conservation value.

scholarly journals Pavement and riparian forest shape the bird community along an urban river corridor

2015 ◽  
Vol 4 ◽  
pp. 291-310 ◽  
Author(s):  
Christopher J.W. McClure ◽  
Allison C. Korte ◽  
Julie A. Heath ◽  
Jesse R. Barber
Keyword(s):  
Riparian Forest ◽  
Bird Community ◽  
Urban River ◽  
River Corridor

scholarly journals ESTABLISHMENT OF NATIVE FOREST SPECIES IN RIPARIAN RECOVERY FOREST IN THE PIAUITINGA RIVER, SERGIPE, BRAZIL.

FLORESTA ◽  
2020 ◽  
Vol 50 (2) ◽  
pp. 1325
Author(s):  
Dráuzio Correia Gama ◽  
Robério Anastácio Ferreira ◽  
Janisson Batista de Jesus
Keyword(s):  
River Basin ◽  
Riparian Forest ◽  
Block Design ◽  
Riparian Forests ◽  
Forest Recovery ◽  
Native Forest ◽  
Forest Species ◽  
Randomized Block Design ◽  
Sapindus Saponaria ◽  
Guazuma Ulmifolia

The riparian forests of the Piauitinga river Basin, Sergipe state, Brazil, are severely degraded, requiring urgent actions aimed their recovery. In this way, the present work was carried out with the objective of analyzing the establishment of native forest species, implanted in a degraded section of riparian forest of the Piauitinga river, in the municipality of Lagarto state of Sergipe, aiming the forest recovery of this area. It was performed the planting of five native forest species, including pioneers and non-pioneers specie, arranged in a randomized block design, in a total of 200 individuals, distributed in 10 individuals with spacing of 1,5m x 1,5m. The Guazuma ulmifolia Lam. species obtained the best results regarding survival, height (111.94 cm) and diameter at soil height (22.89 mm). Guazuma ulmifolia Lam., Tapirira guianensis Aubl. and Sapindus saponaria L. showed to be able to withstand the adversities of the studied environment, and can be recommended in future projects of recovery of the ciliary forests of that  planning unit.

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