Análise Temporal do Uso e Cobertura da Terra na Bacia do Rio Boa Vista, Ouro Preto do Oeste-RO / Temporary Analysis of Land Use and Coverage in the Rio Boa Vista River, Ouro Preto do Oeste-RO

O município de Ouro Preto do Oeste tem na microbacia do Rio Boa Vista a principal fonte de água para abastecimento público, e vem enfrentando problemas de baixa disponibilidade hídrica durante o período de estiagem. No sentido de compreender melhor a microbacia e de que maneira ocorreu a dinâmica de uso e ocupação da terra na mesma, este estudo realiza uma análise temporal de imagens de satélite para os anos de 1973, 1984, 1993, 2007 e 2018, relacionando às mudanças da paisagem com as características da microbacia e o tipo de atividade econômica, além de propor medidas de gestão dos recursos hídricos que possam melhorar a qualidade e aumentar a disponibilidade hídrica na microbacia. Nos períodos analisados houve um aumento progressivo das áreas antropizadas, passando de 52,59 km² (29,03%) em 1973, para 155,47 km² (85,94%) em 2018. A análise temporal da cobertura vegetal da microbacia do Rio Boa Vista indica um comportamento coerente com o processo vigente nas últimas décadas na região, ou seja, antropização inicial acelerada, com posterior remoção gradual da floresta. Assim, foi possível identificar que os fragmentos de floresta remanescentes estão isolados e que nas porções oeste e sul da microbacia encontram-se as áreas mais vulneráveis as ações de erosão, dado o relevo, o tipo de solo, o elevado índice de antropização e a criação de gado.Palavras–chave: Ocupação da Amazônia, Sensoriamento Remoto, Gestão de Recursos Hídricos.Abstract The county of Ouro Preto do Oeste have the Boa Vista River the primary source of water for public supply and has been facing problems of low water availability during the dry season. In order to better understand the watershed and how the dynamics of use and occupation of the land as well, this study performs a temporal analysis of satellite images since 1973, 1984, 1993, 2007 and 2018, relating to changes of the landscape with the characteristics of the watershed and the type of economic activity, in addition to propose measures of water resources management that can improve the quality and increase the availability of water in the watershed. In the analysed period there was a progressive increase in the areas occupied by man, from 52.59 km² (29.03%) in 1973, to 155.47 km² (85.94%) in 2018. The temporal analysis of the vegetation cover of the watershed of the river Boa Vista indicates a behaviour consistent with the current process in recent decades in the region, i.e. anthropisation accelerated initial, with gradual subsequent removal of the forest. Thus, it was possible to identify that the remaining forest fragments are isolated and that in the West and South portions of the watershed are the most vulnerable areas erosion actions, given the topography, soil type, the high level of anthropisation and cattle breeding.Keywords: Occupation of the Amazon, Remote Sensing, Water Resources Management.

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Spatio-temporal analysis of rainfall trends in Chhattisgarh State, Central India over the last 115 years

Journal of Water and Land Development ◽

10.2478/jwld-2018-0012 ◽

2018 ◽

Vol 36 (1) ◽

pp. 117-128 ◽

Cited By ~ 2

Author(s):

Manish K. Nema ◽

Deepak Khare ◽

Jan Adamowski ◽

Surendra K. Chandniha

Keyword(s):

Climate Change ◽

Water Resources ◽

Water Resources Management ◽

Change Point ◽

Temporal Analysis ◽

Temporal Variations ◽

Change Point Detection ◽

Resources Management ◽

Sustainable Water Resources Management ◽

Spatio Temporal

AbstractA quantitative and qualitative understanding of the anticipated climate-change-driven multi-scale spatio-temporal shifts in precipitation and attendant river flows is crucial to the development of water resources management approaches capable of sustaining and even improving the ecological and socioeconomic viability of rain-fed agricultural regions. A set of homogeneity tests for change point detection, non-parametric trend tests, and the Sen’s slope estimator were applied to long-term gridded rainfall records of 27 newly formed districts in Chhattisgarh State, India. Illustrating the impacts of climate change, an analysis of spatial variability, multi-temporal (monthly, seasonal, annual) trends and inter-annual variations in rainfall over the last 115 years (1901–2015 mean 1360 mm·y−1) showed an overall decline in rainfall, with 1961 being a change point year (i.e., shift from rising to declining trend) for most districts in Chhattisgarh. Spatio-temporal variations in rainfall within the state of Chhattisgarh showed a coefficient of variation of 19.77%. Strong inter-annual and seasonal variability in regional rainfall were noted. These rainfall trend analyses may help predict future climate scenarios and thereby allow planning of effective and sustainable water resources management for the region.

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A new method for spatial and temporal analysis of risk in water resources management

Journal of Hydroinformatics ◽

10.2166/hydro.2009.018 ◽

2009 ◽

Vol 11 (3-4) ◽

pp. 320-329 ◽

Cited By ~ 4

Author(s):

Slobodan P. Simonovic

Keyword(s):

Water Resources ◽

Spatial Variability ◽

Water Resources Management ◽

Perceived Risk ◽

Temporal Analysis ◽

Resources Management ◽

Water Resources Systems ◽

Objective Risk ◽

Subjective Risk ◽

Temporal And Spatial

Uncertainty in water resources management is in part about variability and in part about ambiguity. Both are associated with lack of clarity because of the behavior of all system components, lack of data, lack of detail, lack of structure to consider the water resources management problems, working and framing assumptions being used to consider the problems, known and unknown sources of bias, and ignorance about how much effort it is worth expending to clarify the management situation. The two major sources of variability are temporal and spatial heterogeneity. Temporal variability occurs when values fluctuate with time. Other values which are affected by spatial variability are dependent upon location of an area. A major part of the water resources management risk confusion relates to an inadequate distinction between the objective risk (real, physical) and subjective (perceived) risk. Because of the confusion between the two concepts, many characteristics of subjective risk are believed to be valid also for objective risk. The main objective of this paper is to initiate a discussion of the possible methodology for the reliability analysis of water resources systems that will be capable of: (a) addressing water resources uncertainty caused by variability and ambiguity, (b) integrating objective and subjective risk and (c) assisting the water resources management based on better understanding of temporal and spatial variability of risk.

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High level education on integrated water resources management for sustainable development

Journal of Technology and Science Education ◽

10.3926/jotse.361 ◽

2019 ◽

Vol 9 (3) ◽

pp. 295

Author(s):

Juan Bta. Grau ◽

Ana Maria Tarquis ◽

Juan José Martín-Sotoca ◽

José Manuel Antón

Keyword(s):

Water Resources ◽

Water Resources Management ◽

Sustainable Management ◽

Integrated Water Resources Management ◽

Training Needs ◽

Management Planning ◽

Resources Management ◽

Water Users ◽

Hydraulic Infrastructure ◽

High Level

Water, is in Spain a scarce commodity and although we have an age-old water culture, with an emblematic Court, such as the “Tribunal de las Aguas de Valencia”, hydraulic infrastructure, hydrological basin plans, legislation and hydraulic administration since the 20th Century, there are problems of scarcity, water quality and extreme events that often lead to conflicts between users and also among the responsible administrations for their management. Within this framework, it is of a great interest the training of technicians in matters related to planning, quality and integrated water resources management for sustainable development.In Argentina (especially in the NOA) and until a few years ago, water has not been considered as a scarce commodity. In addition to this, they do not have the history and culture of Spain on issues related to their management, planning and governance. Now, they have begun to establish laws and regulations, as well as, an Association of Consortia of Public Water Users, needing external advice. Therefore, it is necessary, to train technicians in water resources capable of working in areas related to their planning and sustainable management, with knowledge related to the quality required by users. These technicians could be integrated, both in the responsible water administrations’, as well as, in private companies.The project that is the object of this paper is based on preparing a double master's degree, in which the training needs of the students graduated of Spanish and Argentina Engineering Schools are taken into account.

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ECOLOGY AND SUSTAINABLE DEVELOPMENT IN LOCAL BUSINESS:SIMULATION OF LOW IMPACT DEVELOPMENT IN SURAKARTA REGENCY

eBA Journal: Journal Economics, Bussines and Accounting ◽

10.32492/eba.v4i1.542 ◽

2018 ◽

Vol 4 (1) ◽

pp. 32-38

Author(s):

Bhimo Rizky Samudro ◽

Yogi Pasca Pratama

Keyword(s):

Water Resources ◽

Water Resources Management ◽

River Flow ◽

Low Impact Development ◽

Development Model ◽

Business Activity ◽

Resources Management ◽

Central Java ◽

Specific Culture ◽

Central Java Province

This paper will describe the function of water resources to support business activities in Surakarta regency, Central Java province. Surakarta is a business city in Central Java province with small business enterprises and specific culture. This city has a famous river with the name is Bengawan Solo. Bengawan Solo is a River Flow Regional (RFR) to support business activities in Surakarta regency. Concious with the function, societies and local government in Surakarta must to manage the sustainability of River Flow Regional (RFR) Bengawan Solo. It is important to manage the sustainability of business activity in Surakarta regency. According to the condition in Surakarta regency, this paper will explain how the simulation of Low Impact Development Model in Surakarta regency. Low Impact Development is a model that can manage and evaluate sustainability of water resources in River Flow Regional (RFR). Low Impact Development can analys goals, structures, and process water resources management. The system can also evaluate results and impacts of water resources management. From this study, we hope that Low Impact Development can manage water resources in River Flow Regional (RFR) Bengawan Solo.

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