scholarly journals Landscape structure in the Pirapó, Paranapanema 3 and 4 Hydrographic Unit, in the state of Paraná, Brazil

2015 ◽  
Vol 75 (4 suppl 2) ◽  
pp. 107-119
Author(s):  
M. T. Nóbrega ◽  
E. Serra ◽  
H. Silveira ◽  
P. M. B. Terassi ◽  
C. M. Bonifácio
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Spatial Structure ◽  
Landscape Structure ◽  
Drainage Basin ◽  
The State ◽  
Integrated Analysis ◽  
Drainage Basins ◽  
Physical Attributes ◽  
Over Time

The aim of this study is to characterize the Pirapó, Paranapanema 3 and 4 Hydrographic Unit, emphasizing its physical attributes and processes of use and occupation, responsible for the structure of the current landscape and the state of its water resources. The recognition of the landscape’s spatial structure in the hydrographic unit and its drainage basins was obtained by integrated analysis of the main elements that compose it: geology, landforms (hypsometric and slope), soils, climate and land use. Analysis revealed that within each drainage basin several variations in the spatial structure of the landscape occur which produce an internal compartmentalization. Each compartment is defined by its own geo-ecological structure, physiognomic standards and dynamics, reflected in its potentialities and vulnerabilities and in the conditions of water resources in the wake of occupation and use over time.

scholarly journals The role of land use types and water chemical properties in structuring the microbiomes of a connected lakes system

2018 ◽  
Author(s):  
Sophi Marmen ◽  
Lior Blank ◽  
Ashraf Al-Ashhab ◽  
Assaf Malik ◽  
Lars Ganzert ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Microbial Communities ◽  
Drainage Basin ◽  
Chemical Properties ◽  
Early Summer ◽  
Water Bodies ◽  
Drainage Basins ◽  
Ecological Changes ◽  
Freshwater Bodies

Lakes and other freshwater bodies are intimately connected to the surrounding land, yet to what extent land-use affects the quality of freshwater and the microbial communities living in various freshwater environments is largely unknown. We address this question through an analysis of the land use surrounding 46 inter-connected lakes located within 7 different drainage basins in northern Germany, and the microbiomes of these lakes during early summer. Lake microbiome structure was not determined by the specific drainage basin or by basin size, and bacterial distribution did not seem to be limited by distance. Instead, land use within the drainage basin could predict, to some extent, NO2+NO3 concentrations in the water, which (together with temperature, chlorophyll a and total phosphorus) affected water microbiome structure. Land use directly surrounding the water bodies, however, had little observable effects on water quality or the microbiome. Several microbial lineages, including environmentally important Cyanobacteria and Verrucomicrobia, were differentially partitioned between the lakes. As the amount of available data on land use (e.g. from remote sensing) increases, identifying relationships between land use, aquatic microbial communities and their effect on water quality will be important to better manage freshwater resources worldwide, e.g. by systemically identifying water bodies prone to ecological changes or the presence of harmful organisms.

scholarly journals LANDSCAPE CHANGE WITH THE TRANSPOSITION OF THE SÃO FRANCISCO RIVER, IN THE DOMAIN CAATINGA, PERNAMBUCO

FLORESTA ◽  
2021 ◽  
Vol 51 (3) ◽  
pp. 648
Author(s):  
Lorena De Moura Melo ◽  
Mayara Maria De Lima Pessoa ◽  
Emanuel Araújo Silva ◽  
Lúcia De Fatima De Carvalho Chaves
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Landscape Structure ◽  
Landscape Change ◽  
Agricultural Area ◽  
Landsat 8 ◽  
Sao Francisco River ◽  
The Core ◽  
São Francisco River ◽  
Integration Project

Landscape change with the transposition of the São Francisco River, in the Domain Caatinga, Pernambuco.The objective of this study was to evaluate the dynamics of land use and cover and the landscape structure, as well as the landscape structure, of the Directly Affected Area by Integration Project of the São Francisco River with the Northeastern Hydrographic Basins, from the East Axis portion located in the State of Pernambuco, Brazil. For this purpose, TM / Landsat 5 and OLI / Landsat 8 images were used, referring to the years 1998, 2008 and 2018, periods before, during and after the transposition, respectively. The land use and land cover classes used in this analysis were savanna-steppe, savanna-steppe, anthropized and / or uncovered area, water resources and agricultural area. Image processing and classification were performed using the QGIS software. Also, studies related to the landscape structure were carried out, using different types of metrics, processed in the Patch Analyst tool, an extension of ArcGIS 10.5. As a result of the analysis of the 20 years, it was obtained that the savanna-steppe vegetation cover showed a 13.86% reduction. However, there were additions in the areas of ciliary savanna, water resources, agricultural area and anthropized area in 1.93%, 0.11%, 0.31% and 11.51%, respectively. Furthermore, there was an increase in forest fragmentation, which corroborated with the results regarding for the core area metrics, which show that there has been a reduction in the size of the fragments and a trend towards the loss of the core areas, due to the edge effect.

Use of land in a water fund in modern conditions

2017 ◽  
Vol 1 (92) ◽  
pp. 26-29
Author(s):  
K.I. Ryzhova ◽  
V.M. Mandzyk
Keyword(s):  
Water Management ◽  
Land Use ◽  
Economic Development ◽  
Water Resources ◽  
Water Use ◽  
Financial Support ◽  
Private Enterprise ◽  
The State ◽  
Institutional System

The article deals with issues of management and financial support land use water resources Ukraine in terms of decentralization. It was established that one of the obstacles to decentralization in Ukraine is the lack of necessary funding infrastructure upgrades lands of water fund. The necessity of reforming the institutional system of water use on the lands of water fund, through the implementation of new institutional forms of economic development, water resources, focused on the water and agricultural needs of communities. In particular, they provide for the establishment of partnerships between the state and private enterprise entities and ensure diversification of investment water management and protection projects.

An integrated methodology to assess future water resources under land use and climate change: an application to the Tahadart drainage basin (Morocco)

2013 ◽  
Vol 71 (4) ◽  
pp. 1839-1853 ◽  
Author(s):  
M. Antonellini ◽  
T. Dentinho ◽  
A. Khattabi ◽  
E. Masson ◽  
P. N. Mollema ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Water Resources ◽  
Drainage Basin ◽  
Integrated Methodology

scholarly journals Spatial-temporal analysis of the risk to water pollution against land use changes in Lobo Stream Drainage Basin, Itirapina-SP, Brazil

2019 ◽  
Vol 23 ◽  
pp. 34
Author(s):  
Phelipe Da Silva Anjinho ◽  
Allita Rezende dos Santos ◽  
Mariana Abibi Guimarães Araujo Barbosa ◽  
Frederico Fabio Mauad
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Forest Restoration ◽  
Drainage Basin ◽  
Land Use Changes ◽  
Water System ◽  
Agricultural Practices ◽  
Temporal Analysis ◽  
Land Use Classification ◽  
Natural Ecosystems

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.

scholarly journals Controlling Factors of Badland Morphological Changes in the Emilia Apennines (Northern Italy)

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 539
Author(s):  
Paola Coratza ◽  
Carlotta Parenti
Keyword(s):  
Land Use ◽  
Forest Cover ◽  
Agricultural Land ◽  
Drainage Basin ◽  
Morphological Changes ◽  
Land Use Changes ◽  
Northern Italy ◽  
Drainage Basins ◽  
Drainage Networks ◽  
Intensive Land Use

Badlands are typical erosional landforms of the Apennines (Northern Italy) that form on Plio-Pleistocene clayey bedrock and rapidly evolve. The present study aimed at identification and assessment of the areal and temporal changes of badlands within a pilot area of the Modena Province (Emilia Apennines), where no previous detailed investigation has been carried out. For this purpose, a diachronic investigation was carried out to map the drainage basin and the drainage networks of the linear erosion features in the study area during the last 40 years, and to evaluate changes in badlands drainage basins morphometry and surface, land use and pluviometry. The investigation carried out indicated a general stabilisation trend of the badlands in the study area. In fact, a reduction in the bare surface area from 6187.1 m2 in 1973 to 4214.1 m2 in 2014 (31%), due to an intensified revegetation process around the badland areas, has been recorded. This trend, in line with the results of research carried out in other sector of the Northern Apennines, is mainly due to intensive land use changes, mostly the increase in forest cover and the reduction of agricultural land, that occurred in the study area from the 1970s onwards.

scholarly journals КЛАССИФИКАЦИЯ ВОЗМОЖНЫХ ЗАДАЧ ДЛЯ ИССЛЕДОВАНИЯ НЕЛИНЕЙНЫХ ВОЛН В НАСЫЩЕННЫХ ПОРИСТЫХ СРЕДАХ

2021 ◽  
Vol 7 (3(57)) ◽  
pp. 34-39
Author(s):  
Ш.А. КЕРИМОВА
Keyword(s):  
Water Resources ◽  
Computer Technology ◽  
Natural Environment ◽  
The State ◽  
Highly Qualified ◽  
Drainage Basins ◽  
Rational Use ◽  
Modern Computer ◽  
Computer Technologies ◽  
Household Activities

Применение вычислительной техники и современных компьютерных технологий для анализа состояния гидроэкосистем открывает новые возможности как перед учеными-исследователями, так и перед лицами и организациями, принимающими ответственные решения по рациональному использованию природной среды на благо человека, а также поддержки решений в отношении осуществления мероприятий во всех видах хозяйственной и культурно-бытовой деятельности с использованием водных ресурсов и водосборных бассейнов путем формирования высококвалифицированных рекомендаций [1]. Abstarct. The use of computer technology and modern computer technologies for analyzing the state of hydroecosystems opens up new opportunities both for scientists-researchers and for persons and organizations making responsible decisions on the rational use of the natural environment for the benefit of humans, as well as support for decisions regarding the implementation of measures in all types economic and cultural and household activities using water resources and drainage basins by forming highly qualified recommendations [1].

scholarly journals Relação entre as propriedades físico-hídricas dos solos e os tipos de uso da terra como subsídio ao manejo e conservação do solo e da água na bacia hidrográfica do rio Pirapó-PR ( Relation between the soil’s hydro-physical attributes and the land use...)

2016 ◽  
Vol 9 (6) ◽  
pp. 1769 ◽  
Author(s):  
Francieli Sant'ana Marcatto ◽  
Hélio Silveira
Keyword(s):  
Land Use ◽  
Drainage Basin ◽  
Aggregate Stability ◽  
Soil Management ◽  
Total Porosity ◽  
Infiltration Rate ◽  
Physical Analysis ◽  
Soil Density ◽  
Physical Behavior ◽  
Physical Attributes

Os Latossolos e Nitossolos da bacia hidrográfica do Pirapó apresentam reduzida suscetibilidade natural à ocorrência de processos erosivos, entretanto, o manejo inadequado tem promovido a sua degradação, impondo condições favoráveis a ação dos agentes de erosão. Diante disso, esse trabalho tem por objetivo estudar os Latossolos Vermelhos e Nitossolos Vermelhos de textura argilosa na bacia hidrográfica do Pirapó, apontando os efeitos das diferentes formas de uso e ocupação no comportamento físico e hídrico dos solos. Foram realizadas análises físicas de densidade do solo, porosidade total, macroporosidade, microporosidade, granulometria e estabilidade de agregados; análises hídricas de velocidade de infiltração e condutividade hidráulica e a análise química de carbono orgânico. Os resultados indicaram que os Latossolos e Nitossolos cultivados com culturas de grãos mostraram-se mais sensíveis às alterações impostas pelo tipo de uso, com alteração das suas propriedades físico-hídricas, sendo necessário buscar o correto manejo do solo garantindo a manutenção da qualidade da água e a sustentabilidade da bacia hidrográfica.   A B S T R A C T The Latosol and Nitosol in the Pirapó drainage basin present little natural susceptibility to erosive processes, however, inadequate management has been promoting its degradation and creating conditions favorable to the action of the agents of erosion. In face of this, this works objective is studying the Red Latososl and Red Nitosols of clayey texture in the Pirapó drainage basin, pointing the effects of the different forms of use and occupation in the hydro-physical behavior of these soils. Physical analysis of soil density, total porosity, macroporosity, microporosity, granulometry and aggregate stability were conducted, along with water analysis of infiltration rate and hydraulic conductivity, plus a chemical analysis of organic carbon. The results indicate the Latosols and Nitosols under grain crops are more sensitive to the changes caused by the type of use, with alteration of is hydro-physical attributes, making the search for the correct soil management necessary for maintenance of the water quality and sustainability of the drainage basin. Keywords: hydro-physical proprieties, land use, 4B landscape compartment, Latosol and Nitosol.   

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