scholarly journals Novel insights from point-dendrometers in an urban setting: linking environmental variation to fluctuations in stem radius

2020 ◽  
Author(s):  
Kevin L. Griffin ◽  
Thomas G. Harris ◽  
Sarah Bruner ◽  
Patrick McKenzie ◽  
Jeremy Hise
Keyword(s):  
Ecosystem Services ◽  
Tree Growth ◽  
Ecological Systems ◽  
Urban Environments ◽  
Urban Setting ◽  
Live Streaming ◽  
Growth Data ◽  
Suburban Areas ◽  
Interaction Terms ◽  
Predictive Understanding

AbstractBackgroundThe unique environment of urban/suburban areas affects tree growth in surprising and currently unrecognized ways. Real-time monitoring of tree growth could provide novel information about these trees and the myriad ecosystem services they provide.MethodsInternet enabled, high-resolution point dendrometers were installed on four trees in Southampton, NY. The instruments, along with a weather station, streamed data to a project web page that was updated once an hour. (https://ecosensornetwork.com).ResultsRadial growth of spruce began April 14 after the accumulation of 69.7 °C growing degrees days and ended September 7th. Cedar growth began later (4/26), after the accumulation of 160.6 °C and ended later (11/3). During our observations, these three modest suburban trees sequestered 108.3 kg of CO2. Growth took place primarily at night and was best predicted by a combination of air temperature, soil moisture, VPD and interaction terms.ConclusionsThis project’s two-year time series provided insights into the growth of trees in a residential area. Linking tree growth to fluctuations in environmental conditions facilitates the development of a mechanistic predictive understanding useful for ecosystem management and growth forecasting across future altering climates. Live-streaming tree growth data enables a deeper appreciation of the biological activity of trees and the ecosystem services they provide in urban environments and thus can be a powerful tool connecting urban social and ecological systems.

scholarly journals An automated workflow for informing urban greening based on photosynthetic radiation modelling

2021 ◽  
Vol 2069 (1) ◽  
pp. 012060
Author(s):  
M Kyropoulou ◽  
S Subramaniam ◽  
S Hoffmann
Keyword(s):  
Ground Level ◽  
Mineral Elements ◽  
Urban Environments ◽  
Data Availability ◽  
Growth Potential ◽  
Urban Setting ◽  
Species Selection ◽  
Outdoor Thermal Comfort ◽  
Urban Greening ◽  
Growth Data

Abstract The deliberate introduction of vegetation in urban environments, referred to as urban greening, is known to improve outdoor thermal comfort and mitigate the effects of Urban Heat Island in cities. Urban greening can be applied on ground level or elevated parks, roof tops, and building facades. The main parameters that affect plant growth are space, light, water, humidity, oxygen, carbon dioxide, mineral elements, and temperature. Of these parameters, light and temperature are the ones more unlikely to be supplemented in a non-controlled urban setting. This research presents the development of an automated workflow that facilitates design decisions on vegetation growth potential and vegetation species selection within their climatic and geometrical context. This novel scripting-based prototype uses hourly radiation results to extract location specifications, such as photoperiod, hardiness zone, and hourly annual Daily Light Integral values on a user-defined grid. It then seamlessly compares the data against seasonal light and soil temperature requirements of listed cultivars to evaluate their suitability within the constraints of the analysis area. A basic plant dataset is created that is open to expansion based on plants growth data availability. This automated workflow can be employed by agriculturalists, urban planners, and landscape designers to perform vegetation selection for applications such as urban greening in dense contexts or vertical farms.

scholarly journals Characteristics and Outcomes Among Hospitalized COVID-19-Positive Patients in a Nonurban Environment

2021 ◽  
Author(s):  
Robert P Lennon ◽  
Theodore J Demetriou ◽  
M Fahad Khalid ◽  
Lauren Jodi Van Scoy ◽  
Erin L Miller ◽  
...  
Keyword(s):  
New York ◽  
Medical Center ◽  
Academic Medical Center ◽  
Military Medicine ◽  
Case Series ◽  
Outcome Data ◽  
Urban Environments ◽  
Urban Setting ◽  
Published Data ◽  
Retrospective Case

ABSTRACT Introduction Virtually all hospitalized coronavirus disease-2019 (COVID-19) outcome data come from urban environments. The extent to which these findings are generalizable to other settings is unknown. Coronavirus disease-2019 data from large, urban settings may be particularly difficult to apply in military medicine, where practice environments are often semi-urban, rural, or austere. The purpose of this study is compare presenting characteristics and outcomes of U.S. patients with COVID-19 in a nonurban setting to similar patients in an urban setting. Materials and Methods This is a retrospective case series of adults with laboratory-confirmed COVID-19 infection who were admitted to Hershey Medical Center (HMC), a 548-bed tertiary academic medical center in central Pennsylvania serving semi-urban and rural populations, from March 23, 2020, to April 20, 2020 (the first month of COVID-19 admissions at HMC). Patients and outcomes of this cohort were compared to published data on a cohort of similar patients from the New York City (NYC) area. Results The cohorts had similar age, gender, comorbidities, need for intensive care or mechanical ventilation, and most vital sign and laboratory studies. The NYC’s cohort had shorter hospital stays (4.1 versus 7.2 days, P < .001) but more African American patients (23% versus 12%, P = .02) and higher prevalence of abnormal alanine (>60U/L; 39.0% versus 5.9%, P < .001) and aspartate (>40U/L; 58.4% versus 42.4%, P = .012) aminotransferase, oxygen saturation <90% (20.4% versus 7.2%, P = .004), and mortality (21% versus 1.4%, P < .001). Conclusions Hospitalists in nonurban environments would be prudent to use caution when considering the generalizability of results from dissimilar regions. Further investigation is needed to explore the possibility of reproducible causative systemic elements that may help improve COVID-19-related outcomes. Broader reports of these relationships across many settings will offer military medical planners greater ability to consider outcomes most relevant to their unique settings when considering COVID-19 planning.

scholarly journals Forecasting Agroforestry Ecosystem Services Provision in Urban Regeneration Projects: Experiences and Perspectives from Milan

2021 ◽  
Vol 13 (5) ◽  
pp. 2434 ◽  
Author(s):  
Ambrogio Zanzi ◽  
Federico Andreotti ◽  
Valentina Vaglia ◽  
Sumer Alali ◽  
Francesca Orlando ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Food System ◽  
Environmental Changes ◽  
Urban Environments ◽  
Urban Food System ◽  
Notable Increase ◽  
Living Fences ◽  
The Difference ◽  
Pollution Removal ◽  
The Relationship

The expansion of urban agglomerates is causing significant environmental changes, while the demand and need for sustainability keep on growing. In this context, urban and peri-urban agriculture can play a crucial role, mainly if associated with an agroecological approach. Indeed, the extensive use of living fences and tree rows can improve the environmental quality, assuring ecosystem services (ES), developing a sustainable urban food system and increasing local productions and the related socio-economic improvements. This study aims to assess the benefits of an agroecological requalification of a dismissed peri-urban area in the South Milan Agricultural Regional Park (Italy), by evaluating two possible scenarios, both involving planting trees and shrubs in that area. The software I-Tree Eco simulates the ecosystem services provision of planting new hedgerows, evaluating the benefits over 30 years. The study underlines the difference between the two scenarios and how the planted area becomes an essential supplier of regulating ecosystem services for the neighbourhoods, increasing carbon storage and air pollution removal. Results were then analysed with a treemap, to better investigate and understand the relationship between the different ecosystem services, showing a notable increase in carbon sequestration at the end of the simulation (at year 30). The study shows a replicable example of a methodology and techniques that can be used to assess the ES in urban and peri-urban environments.

scholarly journals Biomimetic Urban and Architectural Design: Illustrating and Leveraging Relationships between Ecosystem Services

Biomimetics ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 2
Author(s):  
Maibritt Pedersen Zari
Keyword(s):  
Ecosystem Services ◽  
Urban Design ◽  
Urban Areas ◽  
Architectural Design ◽  
Urban Environments ◽  
Published Data ◽  
Ecological Knowledge ◽  
Policy Makers ◽  
Spatial Design ◽  
Key Barrier

Redesigning and retrofitting cities so they become complex systems that create ecological and cultural–societal health through the provision of ecosystem services is of critical importance. Although a handful of methodologies and frameworks for considering how to design urban environments so that they provide ecosystem services have been proposed, their use is not widespread. A key barrier to their development has been identified as a lack of ecological knowledge about relationships between ecosystem services, which is then translated into the field of spatial design. In response, this paper examines recently published data concerning synergetic and conflicting relationships between ecosystem services from the field of ecology and then synthesises, translates, and illustrates this information for an architectural and urban design context. The intention of the diagrams created in this research is to enable designers and policy makers to make better decisions about how to effectively increase the provision of various ecosystem services in urban areas without causing unanticipated degradation in others. The results indicate that although targets of ecosystem services can be both spatially and metrically quantifiable while working across different scales, their effectiveness can be increased if relationships between them are considered during design phases of project development.

scholarly journals The Biodiversity of Urban and Peri-Urban Forests and the Diverse Ecosystem Services They Provide as Socio-Ecological Systems

Forests ◽  
2016 ◽  
Vol 7 (12) ◽  
pp. 291 ◽  
Author(s):  
Stephen Livesley ◽  
Francisco Escobedo ◽  
Justin Morgenroth
Keyword(s):  
Ecosystem Services ◽  
Urban Forests ◽  
Ecological Systems

scholarly journals Stature is inversely associated with self-reported diabetes in middle-aged Mexican women

2017 ◽  
Vol 41 ◽  
pp. 1
Author(s):  
Ruy Lopez-Ridaura ◽  
Karl P Puchner ◽  
Eduardo Ortiz-Panozo ◽  
Isabel Vieitez ◽  
Martín Lajous
Keyword(s):  
Menopausal Status ◽  
Urban Environments ◽  
Urban Setting ◽  
Mexican Women ◽  
Inverse Association ◽  
Middle Aged ◽  
Cross Sectional ◽  
Multivariable Regression Model ◽  
Multivariable Regression ◽  
Sectional Analysis

Objective. To investigate whether stature is associated with two highly prevalent cardiom- etabolic disorders—diabetes mellitus (DM) and high blood pressure (HBP) —in middle-aged Mexican women. Methods. We conducted a cross-sectional analysis of a sample of 93 481 middle-aged Mexican female teachers, all participating in the Mexican Teachers Cohort (MTC, or ESMaestras) study. We used a multivariable regression model to investigate the association of stature quintiles with the self-reported outcomes of DM and HBP. Results. After adjusting for birth cohort, ethnicity, family history, birthweight, occupation of household’s head during participant’s childhood, menopausal status, and geographical region of birthplace, stature was inversely associated with DM, with the odds for DM being 9% higher in the lowest stature quintile when compared to the highest stature quintile. Stratification for location of residence resulted in confirmation of the above-mentioned findings only in partici- pants living in urban environments. Conclusions. We found an inverse association of stature with DM but not with HBP. Our data suggest that urban setting might be an important effect modifier of this association, which merits further investigation since it might provide valuable insights into the epidemiological transition occurring in developing countries.

scholarly journals Modelling tree growth to determine the sustainability of current off-take from miombo woodland: a case study from rural villages in Malawi

2016 ◽  
Vol 44 (1) ◽  
pp. 66-73 ◽  
Author(s):  
EMMA L. GREEN ◽  
FELIX EIGENBROD ◽  
KATE SCHRECKENBERG ◽  
SIMON WILLCOCK
Keyword(s):  
Ecosystem Services ◽  
Confidence Interval ◽  
Tree Growth ◽  
Growth Rates ◽  
Vegetation Dynamics ◽  
Management Practices ◽  
Sustainable Forest Management ◽  
Miombo Woodlands ◽  
Yield Model ◽  
The Impact

SUMMARYMiombo woodlands supply ecosystem services to support livelihoods in southern Africa, however, rapid deforestation has necessitated greater knowledge of tree growth and off-take rates to understand the sustainability of miombo exploitation. We established 48 tree inventory plots within four villages in southern Malawi, interviewed representatives in these same villages about tree management practices and investigated the impact of climate on vegetation dynamics in the region using the ecosystem modelling framework LPJ-GUESS. Combining our data with the forest yield model MYRLIN revealed considerable variation in growth rates across different land uses; forested lands showed the highest growth rates (1639 [95% confidence interval 1594–1684] kg ha–1 year–1), followed by settlement areas (1453 [95% confidence interval 1376–1530] kg ha–1 year–1). Based on the modelled MYRLIN results, we found that 50% of the villages had insufficient growth rates to meet estimated off-take. Furthermore, the results from LPJ-GUESS indicated that sustainable off-take approaches zero in drought years. Local people have recognized the unsustainable use of natural resources and have begun planting activities in order to ensure that ecosystem services derived from miombo woodlands are available for future generations. Future models should incorporate the impacts of human disturbance and climatic variation on vegetation dynamics; such models should be used to support the development and implementation of sustainable forest management.

Modelling Urban Tree Growth and Ecosystem Services: Review and Perspectives

2020 ◽  
pp. 405-464
Author(s):  
T. Rötzer ◽  
A. Moser-Reischl ◽  
M. A. Rahman ◽  
R. Grote ◽  
S. Pauleit ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Tree Growth ◽  
Urban Tree

scholarly journals Delayed behavioural shifts undermine the sustainability of social–ecological systems

2017 ◽  
Vol 284 (1868) ◽  
pp. 20171192 ◽  
Author(s):  
A.-S. Lafuite ◽  
C. de Mazancourt ◽  
M. Loreau
Keyword(s):  
Ecosystem Services ◽  
Natural Habitat ◽  
Sustainable Consumption ◽  
Ecological Systems ◽  
Habitat Destruction ◽  
Social Ecological Systems ◽  
Social Ecological ◽  
Ecological Feedbacks ◽  
Mixed Equilibria

Natural habitat destruction and fragmentation generate a time-delayed loss of species and associated ecosystem services. As social–ecological systems (SESs) depend on a range of ecosystem services, lagged ecological dynamics may affect their long-term sustainability. Here, we investigate the role of consumption changes for sustainability, under a time-delayed ecological feedback on agricultural production. We use a stylized model that couples the dynamics of biodiversity, technology, human demography and compliance with a social norm prescribing sustainable consumption. Compliance with the sustainable norm reduces both the consumption footprint and the vulnerability of SESs to transient overshoot-and-collapse population crises. We show that the timing and interaction between social, demographic and ecological feedbacks govern the transient and long-term dynamics of the system. A sufficient level of social pressure (e.g. disapproval) applied on the unsustainable consumers leads to the stable coexistence of unsustainable and sustainable or mixed equilibria, where both defectors and conformers coexist. Under bistability conditions, increasing extinction debts reduces the resilience of the system, thus favouring abrupt regime shifts towards unsustainable pathways. Given recent evidence of large extinction debts, such results call for farsightedness and a better understanding of time delays when studying the sustainability of coupled SESs.

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