scholarly journals Mapping and Characterization of the Landscape Units of the Coastal Hydrographic Basin of Rio Pacoti, Ceará, Brazil

2021 ◽  
Vol 13 (02) ◽  
pp. 260-273
Author(s):  
Álvaro Andrade Dourado ◽  
José Falcão Sobrinho ◽  
Francisca Edineide Lima Barbosa ◽  
Ernane Cortez Lima
Keyword(s):  
Hydrographic Basin ◽  
Landscape Units

scholarly journals Nutritional Characterization of Two Rare Landraces of Turnip (Brassica rapa. var. rapa) Tops and Their On-Farm Conservation in Foggia Province

2020 ◽  
Vol 12 (9) ◽  
pp. 3842
Author(s):  
Giulia Conversa ◽  
Corrado Lazzizera ◽  
Anna Bonasia ◽  
Paolo La Rotonda ◽  
Antonio Elia
Keyword(s):  
Brassica Rapa ◽  
Urban Areas ◽  
General Context ◽  
Antioxidant Compounds ◽  
Economic Activities ◽  
Marginal Lands ◽  
On Farm Conservation ◽  
Landscape Units ◽  
On Farm

The study of nutritional properties in landrace products and the general context of its cultivation site are crucial to designing a sustainable on-farm strategy for landrace conservation. The present study describes the main nutritional aspects of two Brassica rapa subspecies rapa landraces collected in Puglia, Italy along with agroecological and socioeconomical traits where they are cultivated. The two B. rapa landraces (‘Cima di rapa dalla testa’ and ‘Cima di rapa antica’) are only found in sites at 700–800 m asl and in two landscape units (the Southern Daunian Mountains (SDM) and the Umbra Forest (UF), respectively) of the Foggia province. These rare landraces were selected by farmers to produce turnip greens/tops from ancient root turnip crops. They are named and consumed by local people in the same way as turnip tops of Brassica rapa subspecies sylvestris (‘Cima di rapa’), which are widely cultivated in Puglia. Compared to the most common ‘Cima di rapa’, the two highlighted landraces have a better nutritional profile linked to an improved content in antioxidant compounds—i.e., vitamin C (458 mg kg−1 FW), total phenols (347 mg ac. gallic equivalent kg−1 FW)—in glucosinolate (741 µmol kg FW−1, in ‘Cima di rapa antica’) and in minerals, such as K. Both landraces are deemed as having a high risk of erosion. Few exemplars are cultivated in marginal lands and urban/peri-urban areas (SDM), or in isolated sites within the UF, which is a special protection zone within Gargano National Park. However, natural, cultural, and recreational tourism are the main economic activities in both landscape units.

scholarly journals Landscape and tourism potential in the protected landscape areas

2011 ◽  
Vol 57 (No. 6) ◽  
pp. 272-278 ◽  
Author(s):  
J. Mikulec ◽  
M. Antoušková
Keyword(s):  
Czech Republic ◽  
The Czech Republic ◽  
Landscape Perception ◽  
Landscape Features ◽  
Landscape Characteristics ◽  
Landscape Character ◽  
Tourism Potential ◽  
Landscape Units

Reasons to travel and to visit concrete destinations in the Czech Republic are especially the nature and cultural/historical sightseeing. The presented paper specializes on the first reason and it studies the specific landscape features together with the primary tourism potentials. It focuses on the protected landscape area of Kokořínsko, which is divided into 6 landscape units according to their landscape character. In these landscape units, the authors study the primary tourism potential and the elements of natural, cultural-historical and aesthetical characterization of landscape. The relation between the tourism potential and the landscape features is measured by the Spearman´s coefficient. Moreover, the expert's evaluation of landscape characteristics is confronted with the the landscape perception of tourists which were questioned in the PLA Kokořínsko.

scholarly journals GIS-based Assessment of Morphological and Hydrological Parameters of Ribeira dos Socorridos and Ribeira do Vigario Basins, Madeira Island, Portugal

2021 ◽  
Vol 16 (2) ◽  
pp. 408-426
Author(s):  
Sergio Lousada ◽  
Rui Alexandre Castanho
Keyword(s):  
Sediment Transport ◽  
Drainage System ◽  
Drainage Basins ◽  
Hydrographic Basin ◽  
Madeira Island ◽  
Digital Terrain ◽  
Terrain Models ◽  
System Components ◽  
Hydraulic Infrastructure

The main objective is to identify hydraulic and hydrologic features of drainage basins of Ribeira dos Socorridos, and Ribeira do Vigário located in Madeira Island, (Câmara de Lobos).So, the research analyzed, theoretically, the sediment transport in the above-mentioned cases, and consequently, possible measures for torrential correction were studied. Thereby, hydrographic, geological, and hydrological features of this Archipelago were analyzed in the first phase. Thus, a geographic framing of drainage basins was made - using digital terrain models and deep characterization of the understudy drainage basins. In this regard, it was possible to obtain data regarding the geometric, relief, and drainage system components, using the Geographic Information Systems (GIS).In fact, the use of GIS makes it possible to characterize all descriptive indices/parameters of a hydrographic basin. These indices/parameters linked to the region's climate explain the need for human intervention to construct river hydraulic infrastructure and implement mitigation measures.Moreover, torrential correction techniques were presented to anticipate and mitigate this typology of events. Contextually, this study provides us several goals to consider in the future, including the most relevant actions and guidelines to enhance the characterization of drainage basins and clarify the characterization and accounting of sediment transport.

scholarly journals Advances of a pilot study on gasification of Saccharum Spontaneum to produce electricity in Panama

2020 ◽  
Vol 181 ◽  
pp. 01008
Author(s):  
Orlando Aguilar ◽  
Daniel Navarro ◽  
Yubrany González ◽  
Elvis García ◽  
Heidy Camargo ◽  
...  
Keyword(s):  
Energy Production ◽  
Energy Resource ◽  
Electrical Energy ◽  
Panama Canal ◽  
Saccharum Spontaneum ◽  
Renewable Energy Resource ◽  
Energy Potential ◽  
Hydrographic Basin ◽  
Energetic Characterization

Saccharum spontaneum, known locally as “Paja Canalera”, is a non-native herbaceous species of Panamanian flora, it is invasive and can spread rapidly, even in critical environmental conditions. In the dry season, it is the object of fires of plant mass affecting other species of flora, fauna and communities. This study focuses on assessing the use of the species as a biomasic material for energy production through the gasification technique. Samples of the material present in the Panama Canal Hydrographic Basin (CHCP) were conducted, where there are approximately 6,932 hectares covered by that species. A thermophysical and energetic characterization of the species was carried out, and the use of said plant species is considered as a renewable energy resource with the potential to be converted into gaseous fuel (syngas) by means of the gasification technique and its subsequent generation of electrical energy. Based on the available Biomass, results indicate an energy potential of 536.5 GWh. Tests of various treatments were carried out based on the physical properties of the biomass and tested with various volumetric air flows in order to find the most efficient form of gasification of S. spontaneum, based on the chemical composition of the resulting gas.

scholarly journals ESTRUTURA E FRAGMENTAÇÃO GEOECOLÓGICA DE PAISAGEM FLUVIAL NO BAIXO RIO XINGU – AMAZÔNIA CENTRO-ORIENTAL (STRUCTURE AND GEOECOLOGICAL FRAGMENTATION OF THE RIVER LANDSCAPE IN THE LOWER XINGU RIVER - CENTRAL-EASTERN AMAZON)

2019 ◽  
pp. 122-142
Author(s):  
Eder Mileno Silva De Paula
Keyword(s):  
Remote Sensing ◽  
Landscape Fragmentation ◽  
Xingu River ◽  
River Landscape ◽  
River Geomorphology ◽  
Fluvial Landscape ◽  
Landscape Units ◽  
Identification And Characterization ◽  
Belo Monte

RESUMO:A análise geoecológica busca subsidiar o planejamento dos usos e da ocupação da paisagem em acordo com seus limites e potencialidades. A área de estudo é uma paisagem fluvial localizada a jusante da Usina Hidrelétrica de Belo Monte, no Baixo Rio Xingu, a qual promove modificações no contexto geoecológico regional e local. O objetivo da pesquisa é entender a estrutura geoecológica de paisagem fluvial no Baixo Rio Xingu, incluindo análise das métricas dos fragmentos que compõem as unidades paisagísticas. Analisou-se a paisagem através de estudo sistêmico e holístico de dados produzidos em atividades de campo, pesquisas bibliográficas e utilizando-se técnicas de sensoriamento remoto e geoprocessamento. O entendimento das inter-relações entre os componentes da paisagem permitiu a identificação e caracterização das unidades de paisagem fluvial e identificou-se que a transgressão do Oceano Atlântico sobre o Rio Amazonas possibilita o aumento e redução diária e pode aumentar ou diminuir sazonalmente as cotas fluviométricas do Rio Xingu, antecipando ou perdurando cheias.Palavras-chave: Fragmentação da Paisagem; Geomorfologia Fluvial; Análise Geoambiental. ABSTRACT:The geoecological analysis seeks to subsidize the planning of the uses and occupation of the landscape in accordance with its limits and potentialities. The study area is river landscape located downstream of the Hydroelectric of Belo Monte on the lower Xingu River, which promotes modifications in the regional geoecological context. In order to understand the geoecological structure of the fluvial landscape in the lower Xingu River, including the analysis of the metrics and fragments that compose it's units. The landscape was analyzed through a systemic and holistic study of data produced in field activities, bibliographical and using remote sensing and geoprocessing techniques. The understanding of the interrelations between the components of the landscape allowed the identification and characterization of the fluvial landscape units. The transgression of the Atlantic Ocean over the Amazon River makes it possible to increase and reduce daily, and may increase or decrease seasonally the Xingu River.Keywords: Landscape Fragmentation; River Geomorphology; Geoenvironmental Analysis.

scholarly journals ANÁLISE GEOAMBIENTAL DA BACIA HIDROGRÁFICA DO RIO ACARAÚ, CEARÁ, NORDESTE DO BRASIL

2020 ◽  
Vol 11 (38) ◽  
pp. 90-109
Author(s):  
Vanda Claudino-Sales ◽  
◽  
Ernane Cortez Lima ◽  
Simone Ferreira Diniz ◽  
◽  
...  
Keyword(s):  
Sustainable Development ◽  
Environmental Degradation ◽  
Natural Resource ◽  
Arid Region ◽  
Environmental Planning ◽  
Hydrographic Basin ◽  
Semi Arid Region ◽  
Regional Authorities ◽  
Semi Arid

This article presents a geoenvironmental picture of the hydrographic basin of the Rio Acarau (geology, geomorphology, pedology), located in the Brazilian northern Northeast, as well as the environmental problems that characterize it. The study area is located in a poor and extremely populous semi-arid region, with large environmental degradation of the river course and its plaine. It is necessary that regional authorities transform the hydrographic basin into a fundamental socio-economic and environmental planning unit, based on the surveys and geoenvironmental characterization of the area, to reverse the socioenvironmental degradation of the natural resource and allow territiorial growth based on sustainable development.

scholarly journals Avaliação da Gestão dos Recursos Hídricos do Estado do Pará: Uma Proposta Metodológica à Outorga de Diluição de Lançamento de Efluentes – Estudo de Caso da Bacia Hidrográfica do Rio Paracuri em Belém do Pará.

2020 ◽  
Vol 13 (5) ◽  
pp. 2433
Author(s):  
Helden Vasconcelos Martins ◽  
Eduardo Ribeiro Marinho ◽  
Ivan Carlos da Costa Barbosa ◽  
Lucas Jully Miranda Modesto ◽  
Silvana Do Socorro Veloso Sodré
Keyword(s):  
Water Stress ◽  
Water Resources ◽  
Water Availability ◽  
Environmental Epidemiology ◽  
The State ◽  
Industrial Growth ◽  
Resources Management ◽  
Hydrographic Basin

O desafio para gestão dos recursos hídricos em meio ao crescimento populacional e industrial é encontrado tanto em regiões em estresse hídrico, quanto em regiões com ampla disponibilidade hídrica como por exemplo, a região amazônica. Com isso, o objetivo geral deste trabalho foi avaliar a gestão dos recursos hídricos do Estado do Pará, apresentando uma proposta metodológica para análise de processos, no qual solicitam outorga para diluição de lançamento de efluentes, utilizando como estudo de caso a bacia do Paracuri, localizado em Icoaraci, Belém-Pará. Para tanto, a caracterização da atual situação da gestão dos recursos hídricos foi realizada a partir de aplicação de questionários aos gestores da SEMAS/PA, responsáveis pela formulação e execução das resoluções e leis referentes aos recursos hídricos.  Evaluation of the management of water resources in the state of Pará: a methodological proposal for analysis of dilution of effluent release - Case study of the hydrographic basin of the Paracuri river in Belém do Pará A B S T R A C TThe challenge for the management of water resources between of population and industrial growth is found both in regions under water stress and in regions with wide water availability, such as the Amazon region. Therefore, the general objective of this work was to evaluate the management of the water resources of the State of Pará presenting a methodological proposal for process analysisin which they request granting for dilution of effluent releases using as a case study the Paracuri basin located in Icoaraci, Belém-Pará. Thus, the characterization of the current situation of water resources management was carried out through the application of questionnaires to the managers of SEMAS/PA responsible for the formulation and execution of resolutions and laws related to water resources. Key words: water resources, hydrographic basin, environmental epidemiology. 

COMPARTIMENTAÇÃO E CARACTERIZAÇÃO DAS UNIDADES DE PAISAGEM DO MUNICÍPIO DE SERRA NEGRA DO NORTE-RN: NO TÁXON DOS GEOFÁCIES

2019 ◽  
Vol 21 (2) ◽  
pp. 241-254
Author(s):  
Jucielho Pedro da Silva ◽  
Marcos Túlio Mendonça Diniz ◽  
Fernando Eduardo Borges da Silva ◽  
Matheus Dantas das Chagas
Keyword(s):  
Land Use ◽  
Vegetation Cover ◽  
Radar Images ◽  
Landscape Unit ◽  
Landscape Units ◽  
Black Mountain

Este trabalho teve como objetivo principal a delimitação e caracterização das unidades de paisagem no táxon dos Geofácies, levando em consideração a classificação Geossistêmica de Bertrand (1972) e classificação Ecodinâmica de Tricart (1977), utilizando como base as informações geoespacializadas obtidas do mapa dos Geocomplexos acrescidos de características criteriosas visíveis nas imagens de satélite e de radar ao que tange a cobertura vegetal, geomorfologia e uso e ocupação da terra. Com base nestes parâmetros e critérios, foi possível compartimentar e caracterizar 12 Geofácies no município de Serra Negra do Norte-RN, alcançando assim resultados satisfatórios e êxito na pesquisa.Palavras-chave: Unidade de paisagem, Geofácie, Serra Negra do Norte. RESUMENEl objetivo principal de este trabajo fue la delimitación y caracterización de unidades de paisaje en el taxón Geofacies, teniendo en cuenta la clasificación Geosistemica de Bertrand (1972) y la clasificación Ecodinámica de Tricart (1977), utilizando como base la información geoespacializada obtenida del mapa Geocomplex. agregado con características discernibles visibles en imágenes de satélite y radar en cuanto a cobertura vegetal, geomorfología y uso y ocupación de la tierra. En base a estos parámetros y criterios, fue posible compartimentar y caracterizar 12 Geofacies en el municipio de Serra Negra do Norte-RN, logrando así resultados satisfactorios e investigaciones exitosas.Palabras clave: Unidad de paisaje, Geoface, Northern Black Mountain. ABSTRACTThis work had as main objective the delimitation and characterization of the Geofacies landscape units, taking into account the Bertrand Geossistêmica classification (1972) and the Ecodynamic classification of Tricart (1977), using as geospatial basis the geocoplex map added with critical criteria in satellite and radar images covering a vegetation cover, geomorphology and land use and occupation. Based on parameters it was comparatively possible and characterized 12 geofácies in the municipality of Serra Negra do Norte-RN, thus achieving satisfactory results in the research.Keywords: Landscape unit, Geofácie, Serra Negra do Norte

scholarly journals Characterization of the Landscape Units of the Residual Massif of the Pacoti River Watershed, Ceará, Brazil

2021 ◽  
Vol 14 (3) ◽  
pp. 107
Author(s):  
Alvaro Andrade Dourado ◽  
Jose Falcao Sobrinho ◽  
Francisca Edineide Lima Barbosa
Keyword(s):  
Image Segmentation ◽  
Nature Conservation ◽  
Digital Technology ◽  
River Watershed ◽  
Natural Landscapes ◽  
Landscape Units

Digital technology helps to visualize the natural potentiality of the landscapes that exist on the earthly surface. Indeed, information is more significant with fieldwork. The interpretation of the images through the application of the image segmentation function, available in the SPRING 5.5.5 software, granted the understanding of natural landscapes in the Pacoti River Watershed, precisely in the Baturité Residual Massif. Thus, geoprocessing may act as a mitigating tool in nature conservation since this tool reveals the diversity in nature and its uses.

scholarly journals Análise Ambiental da Bacia de Drenagem do Açude Mucutú/PB Utilizando Sensoriamento Remoto

2019 ◽  
Vol 12 (3) ◽  
pp. 1017
Author(s):  
José Antônio Vilar Pereira ◽  
Janaína Barbosa Da Silva ◽  
Simone Mirtes Araújo Duarte
Keyword(s):  
Remote Sensing ◽  
Drainage Basin ◽  
Temporal Analysis ◽  
Drainage Basins ◽  
Landsat Images ◽  
Hydrographic Basin ◽  
Basin Area ◽  
Artificial Reservoirs ◽  
Over Time

O Brasil tem abundancia em recursos hídricos, mas a distribuição desses recursos é irregular. Na região Nordeste a situação se agrava em decorrência dos longos períodos de estiagem. No entanto, as consequências desse fenômeno podem ser minimizadas com a utilização de tecnologias adequadas, como a construção dos reservatórios artificiais. Apesar da importância desses reservatórios, ao longo do tempo eles vêm sofrendo com o processo de poluição das suas bacias de drenagem e ocupação desordenada de suas margens. Esse trabalho objetivou determinar as características fisiográficas da bacia do açude Mucutú; analisar o uso e ocupação da terra no espaço-tempo de 10 anos; e delimitar a Área de Preservação Permanente (APP) desse reservatório. A delimitação e caracterização da bacia foi obtida através de imagens SRTM e a análise temporal do uso e ocupação da terra foi realizada através da interpretação de imagens Landsat do dia 07/03/2005 e 25/07/2015, a imagem mais recente também foi utilizada para fazer a delimitação da APP do reservatório. Identificou-se que as altitudes da bacia variam de 519m a 841m e a declividade encontrada ficou entre 0% a 46%. Constatou-se que para 2005, 77,88% do território da Bacia estava recoberto por algum tipo de vegetação, enquanto que para 2015 esse valor diminuiu para 68,52%, e a classe Solo Exposto/Área Urbana que em 2005 representava 80,38km² passou a ocupar 126,51km² da área total da bacia em 2015. Identificou-se que a APP ocupa uma área de 4,55km² com a presença de atividades antrópicas conflitantes com a legislação brasileira vigente. Environmental analysis of the Mucutú/PB weir drainage basin using remote sensing A B S T R A C TBrazil has abundance of water resources, but the distribution of those resources is irregular. In the Northeast, the situation worsens due to the long periods of drought. However, the consequences of this phenomenon can be minimized with the use of suitable technologies, such as the construction of artificial reservoirs. Despite the importance of these reservoirs, over time they have been suffering with the process of pollution of their drainage basins and disordered occupation of their margins. This study aimed to determine the physiographic characteristics of the Mucutu basin; to analyze the use and occupation of the land inside a space-time of 10 years; and delimit the Area of Permanent Preservation (APP) of this reservoir. The delimitation and characterization of the basin was obtained through SRTM images and the temporal analysis of land use and occupation was performed through the interpretation of Landsat images of07/03/2005and25/07/2015, the most recent image was also used to delimit the APP from the reservoir. It was identified that the altitudes of the basin vary from 519m to 841m and the slope found was between 0% to 46%. It was verified that for 2005, 77,88% of the Basin territory was covered by some type of vegetation, while for 2015 this value decreased to 68,52%, and the Exposed Soil/Urban Area class, that in 2005 represented 80,38 km², occupied 126,51 km² of the total area of the basin in 2015. It was identified that the APP occupies an area of 4,55 km² with the presence of anthropic activities conflicting with the current Brazilian legislation.Keywords: Caatinga; Hydrographic basin; Area Permanent Preservation; Hypsometry; Slope.

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