scholarly journals Setting the grounds for the Green Infrastructure in the metropolitan areas of Athens and Thessaloniki: the role of green space

2018 ◽  
Vol 8 (1) ◽  
pp. 83-92 ◽  
Author(s):  
Marilena Papageorgiou ◽  
Georgia Gemenetzi
2021 ◽  
Author(s):  
Emily O’Donnell

<p>As global cities rethink their approaches to urban flood risk and water management in response to climate change, accelerating urbanisation and reductions in public green space, Blue-Green Infrastructure (BGI) is gaining increasing recognition due to the advantages of multifunctional BGI solutions over traditional piped drainage and grey infrastructure. BGI, including green and blue roofs, swales, rain gardens, street trees, ponds, urban wetlands, restored watercourses, reconnected floodplains, and re-naturalised rivers, is designed to turn ‘blue’ (or ‘bluer’) during rainfall events in order to reduce urban flood risk. In addition to managing flood risk and increasing water security, BGI generates a range of socio-cultural, economic and environmental co-benefits that help city authorities tackle other urban challenges and ultimately improve the quality of life of city dwellers.</p><p>Extensive research over the last decade has focused on improving knowledge of BGI systems in several broad areas, including: hydrological and hydraulic modelling of water flow through BGI assets; biochemical assessments of sediment and water quality; public preferences; identification and evaluation of BGI co-benefits, and; BGI planning and governance. Emerging research into adaptation pathways, natural capital accounting and social practice approaches for understanding community preferences demonstrate how BGI research is moving beyond hydrodynamic modelling to explore decision making under future uncertainty and placing greater emphasis on the role of community preferences in designing BGI that is accepted and supported by those who directly benefit.</p><p>This presentation will explore these emerging research areas, particularly focusing on the need for interdisciplinary research into BGI to enable the challenges and opportunities to be fully appreciated. Current knowledge gaps that present research opportunities in BGI will also be discussed, including the need for rigorous assessment criteria to determine the success of multifunctional BGI systems; greater investigation of the social benefits of BGI and the value people place on different types of BGI; the role of implicit perceptions in designing BGI assets, and; the role of urban watercourses as multifunctional BGI corridors able to safely convey stormwater while boosting water quality, providing multiple urban pathways (active transport, wildlife movements, etc.) and increasing green space in cities.</p>


Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1787
Author(s):  
Leena J. Shevade ◽  
Franco A. Montalto

Green infrastructure (GI) is viewed as a sustainable approach to stormwater management that is being rapidly implemented, outpacing the ability of researchers to compare the effectiveness of alternate design configurations. This paper investigated inflow data collected at four GI inlets. The performance of these four GI inlets, all of which were engineered with the same inlet lengths and shapes, was evaluated through field monitoring. A forensic interpretation of the observed inlet performance was conducted using conclusions regarding the role of inlet clogging and inflow rate as described in the previously published work. The mean inlet efficiency (meanPE), which represents the percentage of tributary area runoff that enters the inlet was 65% for the Nashville inlet, while at Happyland the NW inlet averaged 30%, the SW inlet 25%, and the SE inlet 10%, considering all recorded events during the monitoring periods. The analysis suggests that inlet clogging was the main reason for lower inlet efficiency at the SW and NW inlets, while for the SE inlet, performance was compromised by a reverse cross slope of the street. Spatial variability of rainfall, measurement uncertainty, uncertain tributary catchment area, and inlet depression characteristics are also correlated with inlet PE. The research suggests that placement of monitoring sensors should consider low flow conditions and a strategy to measure them. Additional research on the role of various maintenance protocols in inlet hydraulics is recommended.


Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 807
Author(s):  
Simone Valeri ◽  
Laura Zavattero ◽  
Giulia Capotorti

In promoting biodiversity conservation and ecosystem service capacity, landscape connectivity is considered a critical feature to counteract the negative effects of fragmentation. Under a Green Infrastructure (GI) perspective, this is especially true in rural and peri-urban areas where a high degree of connectivity may be associated with the enhancement of agriculture multifunctionality and sustainability. With respect to GI planning and connectivity assessment, the role of dispersal traits of tree species is gaining increasing attention. However, little evidence is available on how to select plant species to be primarily favored, as well as on the role of landscape heterogeneity and habitat quality in driving the dispersal success. The present work is aimed at suggesting a methodological approach for addressing these knowledge gaps, at fine scales and for peri-urban agricultural landscapes, by means of a case study in the Metropolitan City of Rome. The study area was stratified into Environmental Units, each supporting a unique type of Potential Natural Vegetation (PNV), and a multi-step procedure was designed for setting priorities aimed at enhancing connectivity. First, GI components were defined based on the selection of the target species to be supported, on a fine scale land cover mapping and on the assessment of land cover type naturalness. Second, the study area was characterized by a Morphological Spatial Pattern Analysis (MSPA) and connectivity was assessed by Number of Components (NC) and functional connectivity metrics. Third, conservation and restoration measures have been prioritized and statistically validated. Notwithstanding the recognized limits, the approach proved to be functional in the considered context and at the adopted level of detail. Therefore, it could give useful methodological hints for the requalification of transitional urban–rural areas and for the achievement of related sustainable development goals in metropolitan regions.


Land ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 434
Author(s):  
Hani Amir Aouissi ◽  
Alexandru-Ionuţ Petrişor ◽  
Mostefa Ababsa ◽  
Maria Boştenaru-Dan ◽  
Mahmoud Tourki ◽  
...  

Land cover and use changes are important to study for their impact on ecosystem services and ultimately on sustainability. In urban environments, a particularly important research question addresses the relationship between urbanization-related changes and biodiversity, subject to controversies in the literature. Birds are an important ecological group, and useful for answering this question. The present study builds upon the hypothesis according to which avian diversity decreases with urbanization. In order to answer it, a sample of 4245 observations from 650 sites in Annaba, Algeria, obtained through the point abundance index method, were investigated by computing Shannon-Wiener’s diversity index and the species richness, mapping them, and analyzing the results statistically. The findings confirm the study hypothesis and are relevant for planning, as they stress the role of urban green spaces as biodiversity hotspots, and plead for the need of connecting them. From a planning perspective, the results emphasize the need for interconnecting the green infrastructure through avian corridors. Moreover, the results fill in an important lack of data on the biodiversity of the region, and are relevant for other similar Mediterranean areas. Future studies could use the findings to compare with data from other countries and continents.


2021 ◽  
pp. 127237
Author(s):  
Jingwen Zhang ◽  
Xiaoqi Feng ◽  
Wenhui Shi ◽  
Jia Cui ◽  
Ji Peng ◽  
...  

Author(s):  
Novalentina Novalentina ◽  
Doddy Yuono

Dwelling (also a residence, a residence) is a self-contained accommodation unit used by one or more households as a home; such as a house, apartment, mobile home, household, vehicle, other "substantial" structure. The concept of residence has significance in relation to search and seizure, transport of real property, theft, offenses, and land use planning. In a city like Jakarta, with dense infrastructure, wide economic disparities and a tense social composition, increasing green space should be a top priority. However, residents of the capital Jakarta can reiterate that this is not the case. That in fact lacks a conspicuous park, playground and public park in the capital. The urban design concept deals with the integration of land use, movement and traffic management and the form of the built environment.Its aim is to provide urban high-quality places that are efficient, functional and attractive, and can respond to changing societal, environmental and economic needs over time. In designing it also contributes to, and bridges between planning and design. It deals with the surrounding environment by paying attention to the context of the building and space rather than the object itself. Then it requires access to green infrastructure, open space areas and green spaces, which will contribute to a greener, healthier, smarter, safer, livelier, richer and fairer. This guide will assist in assessing and demonstrating progress in improving green infrastructure to create a place that is useful, sustainable and well used. It creates a wider community, natural environment and supports a healthy economy. Keywords:  Dwelling; Green space; Private space; Public space ; Sustainable. AbstrakDwelling (juga tempat tinggal) adalah sebuah unit akomodasi mandiri yang digunakan oleh satu atau lebih dari satu rumah tangga sebagai; rumah, apartemen, rumah bergerak, rumah tangga, kendaraan, atau struktur "substansial" lainnya. Konsep tempat tinggal memiliki signifikansi dalam kaitannya dengan pencarian, pengangkutan properti nyata, dan perencanaan penggunaan lahan. Di kota seperti Jakarta, dengan infrastruktur yang sangat padat, kesenjangan ekonomi yang luas dan kehidupan sosial yang tegang, peningkatan ruang hijau seharusnya menjadi prioritas utama. Namun, penduduk ibukota Jakarta dapat menegaskan kembali bahwa hal ini tidak terjadi. Bahwa pada nyatanya kekurangan Taman, tempat Bermain dan taman umum yang mencolok di ibukota. Konsep desain perkotaan berkaitan dengan integrasi penggunaan lahan, pergerakan dan lalu lintas manajemen dan bentuk lingkungan binaan. Tujuannya adalah untuk menyediakan perkotaan berkualitas tinggi tempat-tempat yang efisien, fungsional dan menarik, dan dapat menanggapi kebutuhan perubahan masyarakat, lingkungan dan ekonomi dari waktu ke waktu. Dalam mendisain juga berkontribusi, dan menjembatani antara perencanaan dan perancangan. Ini berhubungan dengan lingkungan sekitar dengan memperhatikan konteks bangunan dan ruang daripada objeknya sendiri. Maka diperlukan akses ke infrastruktur hijau, area ruang terbuka dan ruang hijau, yang akan berkontribusi lebih hijau, lebih sehat, lebih cerdas, lebih aman, lebih hidup, lebih kaya dan lebih adil. Panduan ini akan membantu dalam menilai dan mendemonstrasikan perkembangan dalam meningkatkan infrastruktur hijau untuk menciptakan tempat yang berguna, berkelanjutan dan digunakan dengan baik. Ini membuat masyarakat yang lebih luas, lingkungan alam dan mendukung perekonomian yang sehat.


2017 ◽  
Vol 40 (3) ◽  
pp. 330-351 ◽  
Author(s):  
Lisa Benton-Short ◽  
Melissa Keeley ◽  
Jennifer Rowland

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