scholarly journals MORPHOLOGY OF PARDO RIVER WATERSHED AT THE BORDER OF THE STATES OF BAHIA AND MINAS GERAIS

2020 ◽  
Vol 28 ◽  
pp. 499-511
Author(s):  
Rodrigo Lacerda Brito Neto ◽  
Cristiano Tagliaferre ◽  
Odair Lacerda Lemos ◽  
Felizardo Adenilson Rocha ◽  
Alessandro de Paula ◽  
...  
Keyword(s):  
Land Use ◽  
Spatial Analysis ◽  
Morphometric Analysis ◽  
Catchment Area ◽  
Environmental Changes ◽  
Great Part ◽  
Drainage Network ◽  
Agricultural Activities ◽  
River Watershed

ABSTRACT The spatial analysis of watersheds, as well as the evaluation off the changes occurring in their catchment area along the time are essential for the qualification of environmental changes. This study aims to characterize morphometrically the Pardo river watershed, as well as to evaluate the changes in soil use and occupation occurring between 2001 and 2016. The morphometric analysis consisted of the determination of the geometric parameters, relief information and drainage network using Geographic Information Systems. The land use and occupation information was collected through data from the online mapping platform of the Brazilian Mapping and Land Use Mapping (MapBiomas). According to the results, morphometry indicated that the watershed has low propensity to flood occurrence and tendency to conservation; great part of its area is between 600 and 1000 m of altitude, with predominance of undulating and soft-undulating slopes. The analysis of land use and occupation showed that the area devoted to agricultural activities increased during the period evaluated and occupies most of the basin, while the area of ??forests was reduced, the second in size, and these two classes occupy more than 96 % of catchment area.

scholarly journals Spatial Analysis to Determine Groundwater Recharge Area in Purworejo Regency, Central Java Province/Indonesia

2018 ◽  
Vol 73 ◽  
pp. 03025 ◽  
Author(s):  
Thomas Triadi Putranto ◽  
Daniel Eko Aryanto
Keyword(s):  
Land Use ◽  
Spatial Analysis ◽  
Groundwater Recharge ◽  
Protected Area ◽  
Analysis Tool ◽  
Recharge Area ◽  
Rock Permeability ◽  
Central Java ◽  
The Impact

The impact of land use change will lead to a reduction of the land that is supposed to be for the groundwater recharge area. The area which is previously as a protected area, becoming a cultivated area. Determination of groundwater recharge areas is needed to ensure the availability of groundwater in Purworejo regency. The objective of this study is at determining the suitability of land use for groundwater recharge areas. The method was developed by using spatial analysis tool based on rating and weighting value of some parameters, i.e. rock permeability, rainfall, land use, soil type, slope, and depth of groundwater depth. Results conduct that the groundwater recharge area covers around 42,192 ha. Most of the groundwater recharge areas are located in the protected area, but there are several occupied by cultivated areas.

scholarly journals Spatial Distribution of Leptospirosis and Land Use in Bantul District, 2010-2018

2020 ◽  
Vol 4 (1) ◽  
pp. 31
Author(s):  
Nur Lathifah Syakbanah
Keyword(s):  
Land Use ◽  
Spatial Distribution ◽  
Spatial Analysis ◽  
Environmental Changes ◽  
Distribution Patterns ◽  
Effective Control ◽  
Residential Areas ◽  
Populations At Risk ◽  
Surveillance Programs ◽  
The Government

Land use is an important environmental factor in the dynamics of human health. In the case of leptospirosis, environmental transmission cycles are caused by rat transition, environmental changes and populations at risk. Utilization of GIS-based spatial analysis may help detecting distribution patterns of leptospirosis cases, allocating resources and planning effective control and surveillance programs in endemic areas. This study aims to analyze the spatial distribution of leptospirosis based on land use and stream flow in Bantul District, 2010-2018. This ecological study was conducted in Bantul District, Yogyakarta for 9 years. Spatial analysis overlays processed data on leptospirosis cases per village and land use maps of 2016 using QGIS 3.0. Spatial distribution of 12 of high leptospirosis villages (18-35 cases) are in residential areas, tributaries, croplands, irrigated fields, rain-fed rice fields, and plantations. Those villages was crossed by major river basin which is potentially as transmission media of leptospirosis cases after heavy rainfall. It is suggested to increase the Early Awareness and Alert (EAA) system by active surveillance of early case finding from the government and endemic villagers.

scholarly journals Evaluation of catchment connectivity and storm runoff in flat terrain subject to urbanisation

2009 ◽  
Vol 6 (5) ◽  
pp. 6721-6758 ◽  
Author(s):  
O. V. Barron ◽  
D. W. Pollock ◽  
W. R. Dawes
Keyword(s):  
Land Use ◽  
Spatial Analysis ◽  
Catchment Area ◽  
River Flow ◽  
Hydrological Connectivity ◽  
Rainfall Runoff ◽  
Rainfall Events ◽  
River Catchment ◽  
Analysis Technique ◽  
The Impact

Abstract. Contributing Catchment Area Analysis (CCAA) is a spatial analysis technique that allows estimation of the hydrological connectivity of relatively flat catchments and the effect of relief depressions on the catchment rainfall-runoff relationship for individual rainfall events. CCAA of the Southern River catchment, Western Australia, showed that catchment contributing area varied from less than 20% to more than 60% of total catchment area for various rainfall events. Such variability was attributed to a compensating effect of relief depressions. CCAA was further applied to analyse the impact of urbanisation on the catchment rainfall-runoff relationship. It was demonstrated that the change in land use resulted in much greater catchment volumetric runoff than expected simply as a result of the increase in proportion of impervious urban surfaces. As urbanisation leads to an increase in catchment hydrological connectivity, the catchment contributing area to the river flow also becomes greater. This effect was more evident for the most frequent rainfall events, when an increase in contributing area was responsible for a 30–100% increase in total volumetric runoff. The impact of urbanisation was greatest in sandy catchments, which were largely disconnected in the pre-development conditions.

scholarly journals Idiosyncratic liver alterations of five frog species to land use changes in the Brazilian Cerrado

2019 ◽  
Author(s):  
Lilian Franco-Belussi ◽  
Diogo B. Provete ◽  
Rinneu Elias Borges ◽  
Classius de Oliveira ◽  
Lia Raquel de Souza Santos
Keyword(s):  
Land Use ◽  
Environmental Changes ◽  
Land Use Changes ◽  
Agricultural Activities ◽  
Brazilian Cerrado ◽  
Morphological Aspects ◽  
Metabolic Products ◽  
Frog Species ◽  
New Perspective ◽  
Ecological Methods

AbstractChanges in land use trigger environmental changes that can lead to decreased biodiversity and species loss. The liver is an essential detoxification organ that reflects systemic physiological responses to environmental changes. Here, we tested whether land use changes influence the amount of substances from the hepatic cellular catabolism and melanomacrophages of five anuran species in the Brazilian Cerrado. We used routine histological and histochemical techniques. We then use recently developed ecological methods to relate functional traits to environmental variables. There was an increase in the amount of melanin in environments with high proportion of agriculture, as well as variation in the amount of lipofuscin and hemosiderin. Therefore, the area of melanomacrophages in the liver and the metabolic products in their cytoplasm can be used as biomarkers of environmental changes in regions with intense agricultural activities. Our results add a new perspective to the influence of land use changes on environmental health by highlighting the effect of environmental changes on internal morphological aspects of animals.

FRAGILIDADE AMBIENTAL DA BACIA HIDROGRÁFICA DO RIO CAPIVARA, BOTUCATU-SP

2017 ◽  
Vol 32 (1) ◽  
pp. 88
Author(s):  
Daniela Polizeli Traficante ◽  
Sérgio Campos ◽  
Rodrigo Lillla Manzione ◽  
Bruno Timóteo Rodrigues
Keyword(s):  
Land Use ◽  
Environmental Planning ◽  
Forest Cover ◽  
Riparian Forest ◽  
Map Algebra ◽  
River Watershed ◽  
Eucalyptus Forest ◽  
Hierarchy Process ◽  
Degraded Pastures

O objetivo deste trabalho foi identificar a fragilidade ambiental da Bacia Hidrográfica do Rio Capivara, Botucatu-SP. Foram utilizados os atributos uso da terra, solos, declividade e geologia através da Combinação Linear Ponderada (álgebra de mapas) em que cada um foi considerado um fator condicionante à fragilidade ambiental. A normalização dos fatores se deu pelas classes de fragilidade com notas variando de um a cinco, de muito baixa à muito alta, respectivamente, e a determinação dos pesos pelo método do Processo Hierárquico Analítico. Os resultados indicaram que a bacia apresentou altos índices de fragilidade, em 90,4% de sua área total, tendo o uso da terra ocupado pelas áreas de pastagens degradadas como o maior vetor de pressão. Somente 9,6% da área total da bacia foi classificada com baixos índices de fragilidade onde estão as áreas com cobertura florestal (nativas e reflorestamento de eucalipto) mata ciliares e as áreas de várzea. Estes índices de alta fragilidade vêm contribuindo para a redução da disponibilidade hídrica da bacia como consequência da falta de planejamento ambiental e exploração desordenada dos recursos naturais.PALAVRAS-CHAVE: Análise Multicriterial, EASY AHP, SIG, Planejamento Ambiental. ENVIRONMENTAL FRAGILITY IN CAPIVARA RIVER WATERSHEDABSTRACT: The aim of this study was to identify the environmental fragility of Capivara River Watershed, Botucatu, Sao Paulo State, Brazil. Attributes like land use, soil, slope and geology were combined through weighted linear combination (map algebra) in which each of them was considered a conditioning factor to the environmental fragility. Factors standardization was given through the fragility classes with grades ranging from one to five, very low to very high, respectively, and the determination of weights by the Analytical Hierarchy Process method. The results indicated that the Capivara River Watershed showed high levels of fragility, with 90.4% of total area, and the land use occupied by degraded pastures was the greatest pressure vector for these high rates. Only 9.6% of the basin total area were classified as low fragility indexes, which are the areas with forest cover (natives and eucalyptus forest), riparian forest and lowland areas. These high fragility indexes have contributed to the reduction of water availability in basin because of lack of environmental planning and uncontrolled exploitation of natural resources.KEYWORDS: Multi-Criteria Analysis, EASY AHP, GIS, Environmental Planning.

scholarly journals Agricultural Activities in the Kama River Basin and its Part in the Surface Waters Quality Formation

2012 ◽  
pp. 31-46
Author(s):  
Keyword(s):  
River Basin ◽  
Surface Waters ◽  
Catchment Area ◽  
Nutrient Load ◽  
Agricultural Activities ◽  
Agricultural Lands ◽  
Cattle Breeding ◽  
Study Case ◽  
Quality Formation

Some issues of the determination of agriculture-induced nutrient load upon watercourses including nitrogen and phosphorous carryover from agricultural lands, as well as the said elements accumulation on the catchment area due to cattle-breeding development have been considered with the Kama River basin as a study case. Measures on mitigation of this load upon watercourses have been proposed.

scholarly journals Spatial Analysis and Sustainable-Strategic Environment Management at Baron Spring Catchment Area, Karst of Gunung Sewu, Yogyakarta

2019 ◽  
Vol 17 (2) ◽  
pp. 341
Author(s):  
Hilary Reinhart ◽  
Andi Rifani
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Spatial Analysis ◽  
Spatial Planning ◽  
Catchment Area ◽  
Stakeholder Involvement ◽  
Pollution Index ◽  
Water Source ◽  
Total Coliform ◽  
Middle Part

Gunung Sewu’s karstic aquifer characteristic of fracture-fissure water conduit leads to pollution problem in the water resources. One main source of water used is the Baron Spring. This study aims to analyze the water quality of the Baron Spring toward the land use in the catchment area and provide recommendations for spatial planning and water management in certain area. This research used spatial analysis of GIS and water quality was analyzed by Pollution Index. The results showed that the Baron Spring was in a mild contaminated state with amount of TSS was 97,1 mg/L, bicarbonate 96 mg/L, total coliform 210 MPN/100ml, and total oil and fat 2 mg/L which have exceeded the water source quality standards. Those results are related with the land use in the catchment area where settlement is dense in the upstream, also because of the distribution of settlement and sinkhole in the middle-part of catchment. In coping with the contamination and pollution several strategies are urged to be designed and implemented. Strategies comprised by two approaches, socio-cultural and spatial approach. Each of the approaches is linked and should not be separated. Management of catchment including stakeholder involvement and spatial planning are essential to be considered.

Spatial and temporal characterization of land-use in the Buffalo National River Watershed

1999 ◽  
Vol 26 (2) ◽  
pp. 94-101 ◽  
Author(s):  
H.D. SCOTT ◽  
T.H. UDOUJ
Keyword(s):  
Land Use ◽  
Environmental Changes ◽  
Average Rate ◽  
Land Use Changes ◽  
Gis Technology ◽  
Buffer Zones ◽  
River Watershed ◽  
Buffalo River ◽  
Forest Lands

Today there is much concern about the potential contamination, overuse and development of scenic rivers in more or less pristine environments. The objective of this work was to quantify the spatial and temporal changes in land-use occurring in a watershed draining a nationally protected river. The Buffalo National River of Arkansas was chosen to serve as an example of how Geographic Information System (GIS) technology can rapidly assess the environmental changes that have occurred within a watershed. GIS was used to develop a spatial database of the watershed and to describe differences in land-use data from five sample years during 1965–92. Over this time span, approximately 40 000 ha of forest were lost and converted primarily to pasture. The average rate of loss of forest was 1480 ha/yr. During this same period, the average rate of gain of pasture was 1381 ha/yr. Buffer analyses showed that pasture increased at a higher percentage rate in the buffer zones surrounding the Buffalo River than in the tributaries of the Buffalo River, and a large proportion of the increase was on higher slopes. Land-use changes were dynamic with a greater area converted to pasture than area of pasture converted to forest in the watershed. The cleared forest lands were mostly near older pastures and along streams. The reforested lands tended to occur in the more isolated areas. The Buffalo River Watershed has undergone changes in land-use that may have had impact on the water quality of the region.

scholarly journals Land use and water quality degradation in the Peixe-Boi River watershed

2016 ◽  
Vol 11 (2) ◽  
pp. 472
Author(s):  
Bruno Wendell De Freitas Pereira ◽  
Maria de Nazaré Martins Maciel ◽  
Francisco De Assis Oliveira ◽  
Marcelo Augusto Moreno Da Silva Alves ◽  
Adriana Melo Ribeiro ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Land Cover ◽  
Catchment Area ◽  
Land Use Changes ◽  
Sustainable Use ◽  
River Watershed ◽  
Training Samples ◽  
Sampling Points ◽  
In Situ Collection

This study mapped the land use and land cover of the catchment area of the Peixe-Boi River watershed, in northeast Pará, in order to identify conflicts of land use in the permanent preservation areas, and to relate them to water quality. We used LISS-3 sensor imagery from the Resourcesat satellite with a spatial resolution of 23.5 m for supervised classification of land use and land cover based on 22 training samples. Water quality was determined based on 28 sampling points in drainage network. The relationship between human disturbance and water quality was analyzed based on observations of land use changes using satellite imagery and in situ collection of water samples. The results show that 46% of the permanent preservation areas have conflicted uses, especially with respect to urban squatters, exposed soil and, most notably, pasture, with over 84 % of the area in conflict. Critical levels of dissolved oxygen reaching 2.14 mg L-1 and pH of 5.12 were observed in some sampling points. These values are below the fresh water standards set by Resolution 357/05 of CONAMA. The poorest water quality may be related to irregular use and occupation of areas within the permanent preservation areas. There is therefore an urgent need to develop a plan for the sustainable use and occupation of catchment area land in the Peixe-Boi River watershed in order to restore the environment and improve water quality.

scholarly journals Dinâmica do uso e cobertura da terra em uma bacia hidrográfica transfonteiriça Brasil-Uruguai entre 1985 e 2017

2021 ◽  
Vol 14 (4) ◽  
pp. 2304-2321
Author(s):  
Alexandro Gularte Schafer ◽  
John Roger Roldan Aleixo
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Water Bodies ◽  
Drainage Network ◽  
Economic Activities ◽  
Livestock Sector ◽  
Agricultural Areas ◽  
Network Mapping ◽  
Similar Intensity

This study aims to investigate the dynamics of land use and land cover (LULC) in the São Luiz river watershed, Brazil-Uruguay, between 1985 and 2017, using remote sensing and geographic information systems techniques. The study included the delimitation of the watershed and its drainage network, mapping of LULC, the calculation of landscape metrics and the determination of transitions and persistence. Severe changes in LULC patterns were detected in both the Brazilian and Uruguayan territories, caused by changes in economic activities related to the agricultural and livestock sector. Although the changes occurred similarly in both parts of the watershed based on he initial (1985) and final (2017) scenarios - reduction in the grassland and forest areas and increase in the agricultural areas and water bodies - were found that they occurred at different periods and intensities in brazilian and uruguayan territories. The conversion of grassland into agricultural areas was more intense in uruguayan territory, while inbBrazilian territory the fragmentation of the grassland occurred with greater intensity. Forest areas have reduced with similar intensity in both countries, accompanied by reduction in the fragmentation. The areas occupied by water bodies increased throughout the study period, with greater intensity in uruguayan territory between 1985 and 1996 and in brazilian territory between 2003 and 2017.

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