scholarly journals Bioética de la conservación de los ecosistemas

Pelícano ◽  
2020 ◽  
Vol 6 ◽  
pp. 005-016
Author(s):  
Federico Kopta

Bioethics of Ecosystem Conservation Resumen Los impactos antrópicos sobre los entornos naturales han ido creciendo drásticamente en los últimos años. Ello implicó la pérdida de biodiversidad, y la consecuente necesidad de declarar áreas que protejan y preserven la biodiversidad origina. La confianza y organización de la ciudadanía pueden incidir en políticas públicas que provean cambios profundos. Para eso es menester estar atentos a las oportunidades y generar confianza, con lucidez y veracidad.Abstract The anthropic impacts on natural environments have been growing dramatically in recent years. This implied the loss of biodiversity, and the consequent need to declare areas that protect and preserve the original biodiversity. The trust and organization of citizens can influence public policies that provide profound changes. For that, it is necessary to be alert to opportunities and build trust, with clarity and truthfulness.Key Words: Land Use, Natural Environments, Deforestation, Public Participation, Public Policies.

2004 ◽  
Vol 9 ◽  
Author(s):  
Paulo Rolando De LIMA ◽  
Eduardo L. KRÜGER

Considerando que o processo de desenvolvimento urbano implica na multiplicação dos impactos ambientais decorrentes do assentamento humano sobre a área de influência da cidade e a existência de diretrizes de ação visando à promoção da sustentabilidade urbana na Agenda 21 brasileira, bem como nas disposições do Estatuto da Cidade, especialmente no que se refere aos objetivos da política urbana, garantia do direito a cidades sustentáveis, planejamento do desenvolvimento urbano, estudo de impacto de vizinhança e ao Plano Diretor, o trabalho aponta possibilidades de efetivação destas diretrizes e dispositivos legais no gerenciamento urbano por meio de políticas públicas locais no âmbito dos transportes, habitação e uso do solo. Tais políticas deverão estar dirigidas a objetivos ambientais definidos em função do grau de qualidade ambiental urbana presente e da eqüidade da sua distribuição espacial, visando a uma situação futura desejada. Public policies and urban sustainable development Abstract Considering that urban development is directly related to the spreading of environmental impacts caused by human settlements within city limits and the existence of directives in the Brazilian Agenda 21 regarding the promotion of urban sustainability, as well as the content of the City Statute regarding urban policies towards sustainable cities and urban planing, this study presents possibilities of implementing directives and legal measures for urban management by means of local public policies concerning transportation, habitation and land use. Such policies should be directed towards environmental objectives, defined with regard to the present urban environmental quality and spatial distribution, aiming at a desired future condition.


2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Alba Bernini ◽  
Amadou Lamine Toure ◽  
Renato Casagrandi

AbstractIn a metropolis, people movements design intricate patterns that change on very short temporal scales. Population mobility obviously is not random, but driven by the land uses of the city. Such an urban ecosystem can interestingly be explored by integrating the spatial analysis of land uses (through ecological indicators commonly used to characterize natural environments) with the temporal analysis of human mobility (reconstructed from anonymized mobile phone data). Considering the city of Milan (Italy) as a case study, here we aimed to identify the complex relations occurring between the land-use composition of its neighborhoods and the spatio-temporal patterns of occupation made by citizens. We generated two spatially explicit networks, one static and the other temporal, based on the analysis of land uses and mobile phone data, respectively. The comparison between the results of community detection performed on both networks revealed that neighborhoods that are similar in terms of land-use composition are not necessarily characterized by analogous temporal fluctuations of human activities. In particular, the historical concentric urban structure of Milan is still under play. Our big data driven approach to characterize urban diversity provides outcomes that could be important (i) to better understand how and when urban spaces are actually used, and (ii) to allow policy makers improving strategic development plans that account for the needs of metropolis-like permanently changing cities.


Author(s):  
Angela Rosa Piergiovanni ◽  
Benedetta Margiotta

Apulia (southeast of Italy) has always been an agricultural region in the Italian landscape. Nowadays, the countryside is a mix of natural environments and artificial landscapes. From 2014 to 2016, the region has been the object of a project aimed to collect information about geographic position and surface devoted to legume and/or cereal landrace cultivation. The collection missions carried out allowed the acquisition of 352 samples belonging to eight legumes and six cereal species. Chickpeas predominated among legumes, while durum and common wheat landraces prevailed among cereals. The cultivation of these landraces was mainly located in the marginal areas of central and southern Apulia region. The GIS technology, used in order to geo-reference the collection sites, allowed investigating the changes in land cover/land use (LCLU) occurred over the last three decades at each collecting site. In addition to the evidences collected at field level, the comparison of old ortho-photos and recent satellite images, available on Copernicus Land Monitoring Service of European Environment Agency, shown that very limited changes of LCLU have occurred. Near the collection sites, the agrarian landscape is remained highly fragmented as it was three decades ago. The cultivation side by side of irregular patches with legumes, cereals, olive trees, and grapevine characterize the agricultural landscape. Based on these evidences it can be infer that the absence of significant changes in LCLU has play a positive role in the safeguard of on farm conservation of Apulian landraces.


2007 ◽  
Vol 83 (5) ◽  
pp. 672-681 ◽  
Author(s):  
C. Tyler DesRoches

This paper explores the current status of public participation in BC forest management with the objective of finding ways to improve it at the policy level. Public participation is discussed in relation to features of deliberative democratic theory and then within the historical context of BC forest management. Recent public complaints concerning inadequate participatory opportunities received at the Forest Practices Board and the move to diminish the extent of public participation in land-use planning is discussed. This paper maintains that effective public participation should be a goal of public forest management and that a corresponding policy should be devised. Key words: public participation, forest management, legitimacy, British Columbia


2016 ◽  
Vol 19 (2) ◽  
pp. 423 ◽  
Author(s):  
João Aparecido Bazolli ◽  
Cecilia Maria Neves Delgado

Resumo: Este estudo analisou planos de ordenamento de território brasileiros e portugueses, com o objetivo de compreender a prática da participação popular na construção da democracia participativa. A metodologia aplicada ao trabalho consistiu na análise empírica da participação popular do Plano-Diretor Municipal (2007); e o de Regularização Fundiária (2012), em Palmas-TO, Brasil; do Plano Nacional da Política de Ordenamento do Território (2006); e o do Diretor Municipal de Vila Nova de Gaia (2007), em Portugal. Da análise efetuada, verificou a participação popular nos planos estudados com caráter meramente homologatório, com reduzida presença de atores, e da forte influência da legislação urbana, de difícil aplicação prática. Concluiu que o modelo participativo aplicado aos casos brasileiros e portugueses estudados merece reflexão quanto à sua qualidade, em razão dos fatores apontados neste estudo descaracterizarem e comprometerem a construção da democracia participativa, usada como instrumento moderno de gestão no ordenamento do território.Palavras-chave: Participação pública, Plano Diretor, Plano de Ordenamento.COMPARATIVE ANALYSIS OF POPULAR PARTICIPATION IN LAND USE PLANNING: brazilian and portuguese empirical studyAbstract: This study analyzed Brazilian and Portuguese land use planning in order to understand the practice of popular participation in the construction of participatory democracy. The methodology applied consisted on empirical analysis of popular participation: in Brazil the Palmas - TO Master Plan (2007) and land regularization (2012); in Portugal the National Land Use Planning Policy (2006) and the master Plan of Vila Nova de Gaia (2007). From the analysis made, should be highlight, the involvement practice with merely ratifying aims, reduced presence of actors, and strong influence of urban legislation. In conclusion the participatory model applied to Brazilian and Portuguese studied cases deserves reflection regarding its quality, due to the factors identified in this study, mischaracterize and compromise participatory democracy concept, as a modern management tool in land use planning.Key words: Public participation, master plan, Development Plan.


2021 ◽  
Vol 16 (2) ◽  
pp. 335-345
Author(s):  
Dancan Otieno Onyango ◽  
Christopher O. Ikporukpo ◽  
John O. Taiwo ◽  
Stephen B. Opiyo

The socio-economic and ecological value of Lake Victoria is threatened by significant regional development and urbanization. This study analyzed spatial-temporal land use/land cover changes in the Kenyan Lake Victoria basin from 1978–2018 using Landsat 3, 4-5 and 8 imagery, with a view to identifying the extent and potential impacts of urbanization on the basin. Supervised image classification was undertaken following the Maximum Likelihood algorithm to generate land use/land cover maps at ten-year intervals. Results indicate that the basin is characterized by six main land use/land cover classes namely, agricultural land, water bodies, grasslands and vegetation, bare land, forests and built-up areas. Further, the results indicate that the basin has experienced net increases in built-up areas (+97.56%), forests (+17.30%) and agricultural land (+3.54%) over the last 40 years. During the same period, it experienced net losses in grassland and vegetation (-37.36%), bare land (-9.28%) and water bodies (-2.19%). Generally, the changing landscapes in the basin are characterized by conversion of natural environments to built-up environments and driven by human activities, urban populations and public policy decisions. The study therefore recommends the establishment of a land use system that creates a balance between the ecological realm and sustainable development.


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