Priority areas for forest restoration aiming at the conservation of water resources

2016 ◽  
Vol 94 ◽  
pp. 255-267 ◽  
Author(s):  
Carlos Alberto Vettorazzi ◽  
Roberta Averna Valente
2020 ◽  
Vol 101 ◽  
pp. 102630 ◽  
Author(s):  
Tárcio Rocha Lopes ◽  
Larissa Brêtas Moura ◽  
Jéssica Garcia Nascimento ◽  
Luciano Sobral Fraga Junior ◽  
Cornélio Alberto Zolin ◽  
...  

Oryx ◽  
2020 ◽  
Vol 54 (6) ◽  
pp. 803-813
Author(s):  
Bárbara Moraes ◽  
Orly Razgour ◽  
João Pedro Souza-Alves ◽  
Jean P. Boubli ◽  
Bruna Bezerra

AbstractBrazil has a high diversity of primates, but increasing anthropogenic pressures and climate change could influence forest cover in the country and cause future changes in the distribution of primate populations. Here we aim to assess the long-term suitability of habitats for the conservation of three threatened Brazilian primates (Alouatta belzebul, Sapajus flavius and Sapajus libidinosus) through (1) estimating their current and future distributions using species distribution models, (2) evaluating how much of the areas projected to be suitable is represented within protected areas and priority areas for biodiversity conservation, and (3) assessing the extent of remaining forest cover in areas predicted to be suitable for these species. We found that 88% of the suitable areas are outside protected areas and only 24% are located in areas with forest cover. Although not within protected areas, 27% of the climatically suitable areas are considered priority areas for conservation. Future projections, considering a severe climate change scenario, indicate that A. belzebul, S. flavius and S. libidinosus may lose up to 94, 98 and 54% of their suitable range, respectively. The establishment of primate populations and their long-term survival in these areas are at risk. Mitigation actions such as the implementation of new protected areas, forest restoration and reduction of greenhouse gas emissions will be essential for the conservation of Brazilian primates.


CERNE ◽  
2017 ◽  
Vol 23 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Roberta Averna Valente ◽  
Felipe Coelho de Souza Petean ◽  
Carlos Alberto Vettorazzi

ABSTRACT Urbanization process transforms original landscapes into an anthropic mosaic, causing impacts on hydrologic cycles and on landscape structure and functions. Aiming at the maintenance of the water resources and biodiversity, in an urbanized watershed, the objective of this study was the definition of priority areas for forest restoration. We used a Multicriteria Evaluation (MCE) method, following the steps: criteria definition, identification of the criteria importance, and criteria aggregation through Weighted Linear Combination (WLC). According to the experts, consulted in the context of the Participatory Technique, only two criteria represented the studied landscape: proximity to drainage network and proximity to forest patches. The first criterion was considered twice more important than the second, and through the pairwise comparison matrix, it was obtained respectively the criterion weights of 0.83 and 0.17. The priority map was obtained through the criteria aggregation, using WLC, that considered the criterion weights. The result was a priority map, indicating 5.06% of the study area with very-high priority for forest restoration; 5.22% with high priority; 5.76% with medium priority; 5,42% with low and; 78.53% with very-low priority. We can say that the framework predefined for the study proposed a scenario for priority areas that allowed driving the actions in order to obtain a landscape restoration, beginning through a forest corridor in the riparian zone. Thus, we concluded that the definition of priority areas for forest restoration is possible in an urbanized landscape, using the traditional WLC Multicriteria method.


Author(s):  
Phelipe Da Silva Anjinho ◽  
Allita Rezende dos Santos ◽  
Mariana Abibi Guimarães Araujo Barbosa ◽  
Frederico Fabio Mauad

The landscape transformation caused by economical activities generates impacts on natural ecosystems and the water system is one of the most susceptible to anthropic alterations. In this context, the objective of this study was to analyze the vulnerability of the water resources of the Lobo Stream Drainage Basin (LSDB), Itirapina-SP, through the application of the Environmental Quality Index of Water Resources (EQI-Hydro), in a 32 years period, corresponding to the years 1985 and 2017. The EQI-Hydro was calculated from the analysis of the Euclidean distance of the water resources to the impacting sources, determined by means of land use classification, and then rescaled based on fuzzy logic. The results show that approximately 57% of the watershed area is classified as high and very high EQI-Hydro. The Itaqueri River and the Água Branca Stream are the most vulnerable to pollution due to their proximity to pollution sources. This manifests the need for adequate agricultural practices and public policies for forest restoration, aiming the preservation of the LSDB water resources.


Author(s):  
Mathew Rouch

The objective of this project was to consolidate all previous work on water rights in the park into a single geodatabase that could be updated and built on in the future. Priority areas specifically for this project were Cottonwood and Spread Creeks, with the goal being to identify all water rights and associated ditches being diverted off of these creeks.


Author(s):  
Fernando Salles Rosa ◽  
Kelly Cristina Tonello ◽  
Roberto Wagner Lourenço

In this study, we selected priority areas for conservation of water resources to support programs for environmental services (PSA) payment. The proposal will be used for the implementation of the PSA pilot project in the watershed of the Murundu, Ibiúna-SP, to support PSA public policy to foster sustainability. To do so, land use information layers, vegetative cover and slope were organized in a GIS environment in order to allow through cross tabulation the selection of priorities to generate a thematic map. From this map, we performed qualitative and a quantitative analysis, as well as priority setting ranges. The tools used have shown to be useful in supporting decision-making and research and public policy in PSA, focusing on increasing the governance of water resources. It is clear that remuneration for “standing forest" definitely represents the major prospect in the watershed of the river’s Murundu, as well as the possibility of converting monetary values of the payment into other forms of support to providers of the service according to their priorities.
  


2019 ◽  
Vol 46 (3) ◽  
pp. 113
Author(s):  
Franciane Carla De Almeida ◽  
Eduarda Martiniano De Oliveira Silveira ◽  
Lara Lopes De Paiva ◽  
Fausto Weimar Acerbi Júnior

The collapse of a mining dam with 62 million cubic meters of mud in the Rio Doce basin resulted in the destruction of whole communities and large areas of Atlantic Forest. As forest restoration activities are among the most costly conservation strategies, prioritization of restoration efforts is crucial. In the present article, we mapped priority areas for forest recovery in a portion of the Rio Doce Basin (DO1) using a GIS-based (geographic information system) multicriteria decision analysis (MCDA) employing the weighted linear combination (WLC) method. Five factors with different weights were taken into consideration according to their level of importance: distance from the drainage network, distance from the native vegetation patches, slope, soil class and precipitation. A map of priority areas was produced where 1.73% of the area was classified as very high priority for forest recovery, while 5.18% of the area was classified as high priority, 57.88% as medium priority, 1.34% as low priority and 0.00% as very low priority. The highest weights were both for the distance from the drainage network and the distance from native vegetation, revealing that areas of permanent preservation and those closer to forest fragments are priority areas for forest recovery. MCDA is a flexible and easy-to-implement method generating maps with suitable solutions for forest recovery. The approach taken can be replicated in regions that require support for decision making in environmental planning, such as the Pantanal biome, which is under considerable pressure from deforestation for the expansion of pastures.


2021 ◽  
Vol 08 (01) ◽  
pp. 04-11
Author(s):  
FABIANA CAROLINA MIRANDA ◽  
◽  
STELLA MARY AMARILLA RODRÍGUEZ ◽  
LUCIA JANET VILLALBA MARÍN ◽  
LOURDES GON ZÁLE Z SORIA ◽  
...  

Debido a la necesidad de estudios referidos al tema de la degradación de ecosistemas a nivel país, y las opciones para la restauración; se ha considerado importante evaluar áreas prioritarias para la restauración forestal en la Reserva para Parque Nacional San Rafael, reconocida tanto por su importancia para la conservación, como por sus procesos de degradación históricos, siendo éste el objetivo general de la investigación. La Reserva ubicada entre los departamentos de Itapúa y Caazapá es considerada un remanente boscoso representativo de la ecorregión Bosque Atlántico del Alto Paraná. La metodología se basó en la priorización espacial de criterios relacionados a la restauración de bosques a través de Sistemas de Información Geográfica, utilizando imágenes satelitales, cartografías temáticas y herramientas ArcGis 10.3 y QGIS 2.18. Se aplicó una evaluación multicriterio, donde se combinaron 14 capas de información para obtener las áreas prioritarias para acciones de restauración forestal. Los resultados indican que la categoría de máxima prioridad de restauración representa el 7,03% y la categoría alta prioridad el 17,86%, ambas ubicadas en la zona Oeste. Esta investigación buscó facilitar información para futuros proyectos de restauración forestal y otras acciones de manejo y conservación, oportunamente enmarcados en la declaración de la Década de las Naciones Unidas para la restauración de los ecosistemas (2021-2030).


2017 ◽  
Vol 41 (1) ◽  
Author(s):  
Victor A M Silva ◽  
Kaline de Mello ◽  
Carlos Alberto Vettorazzi ◽  
Danilo Ribeiro da Costa ◽  
Roberta Averna Valente

Abstract Replacing the original land cover by other land uses, especially when it is associated with inadequate management practices, can cause changes in runoff and rainwater infiltration. This can result in above normal levels of soil erosion and sediment-carrying to the rivers and streams. The original land cover conservation in the watersheds is, therefore, essential for the maintenance of its water resources. In this context, the main objective of this study was to prioritize areas for forest conservation in two watersheds, aiming at maintaining the water availability, in terms of quantity and quality, for the public supply. The watersheds were selected considering their regional importance and because they are similar in terms of land use / land cover. The study was developed in the Multicriteria Evaluation (MCE) context, which permits the integration of different landscape characteristics (i.e. factors), in order to obtain a solution for the decision-making process. The following criteria were selected by considering the expert's opinions: slope, flow accumulation, aspect, and land use / land cover. Their relative importance (i.e. factor weight) was defined through the Pairwise Comparison Method. The criteria maps units were normalized by a common scale and then aggregated through an MCE method named Weighted Linear Combination (WLC). Pearson correlation was used to evaluate the criteria contribution on the final map. The watershed 1 was classified in approximately 14% of its area as very high priority; 27% as high; 19% as medium; 21% as low; and 18% as very low. The watershed 2 obtained, respectively, 17%; 29%; 17%; 21%; e 17%. We conclude that the WLC method supports the definition of priority areas for forest conservation in the watersheds, in order to have an appropriate design of actions for forest conservation.


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