scholarly journals Urban Tree Growth Modeling

2012 ◽  
Vol 38 (5) ◽  
pp. 172-180
Author(s):  
E. Gregory McPherson ◽  
Paula Peper
Keyword(s):  
Tree Growth ◽  
Management Practices ◽  
Urban Forestry ◽  
Growth Modeling ◽  
Single Species ◽  
Repeated Measurements ◽  
Design Management ◽  
Local Climate ◽  
High Performing ◽  
Urban Tree

Selecting, locating, and managing trees to provide ecosystem services are becoming increasingly important facets of municipal and consulting forestry. The science of urban tree growth modeling is fundamental to quantifying these services. This paper describes three longterm tree growth studies conducted to evaluate tree performance because repeated measurements of the same trees produce critical data for growth model calibration and validation. Several empirical and process-based approaches to modeling tree growth are reviewed. Modeling is more advanced in the fields of forestry and pomology than in urban forestry. The USDA Forest Service’s reference city research has developed over 1,800 growth equations from measurements on more than 17,000 trees in 16 cities. The database is a valuable source of information that reflects regional differences in species composition, climate, soils, site conditions, and management practices. Several examples illustrate how differences in local climate and management practices can influence growth of a single species and the resulting value of services. Further advances in urban tree growth modeling are needed to inform the design, management, and modeling of high performing landscapes.

scholarly journals Urban Tree Growth & Longevity: Introduction

2012 ◽  
Vol 38 (5) ◽  
pp. 171
Author(s):  
E. Gregory McPherson ◽  
Bryant Scharenbroch
Keyword(s):  
Tree Growth ◽  
Special Section ◽  
Urban Forestry ◽  
Urban Trees ◽  
Future Research ◽  
Urban Tree ◽  
Course Of Action ◽  
New Information ◽  
Site Design ◽  
Research And Education

This special issue of Arboriculture & Urban Forestry contains a series of papers related to urban tree growth and longevity. Research and new information on urban tree growth and longevity is important for improved management of our urban trees and forests, as well as assessing their function and value. The papers in this issue were presented at the Urban Tree Growth & Longevity Conference held on September 12–13, 2011 at The Morton Arboretum (Lisle, Illinois, U.S.). This international conference brought together researchers and practitioners to discuss the current state of knowledge concerning urban tree growth and longevity. The conference covered four topic areas: 1) Descriptive studies of tree growth, longevity, and mortality, 2) Roles of tree production and sales on tree growth and longevity, 3) Roles of site design and tree selection on tree growth and longevity, and 4) Roles of tree and site management on tree growth and longevity. The objectives of the conference and these papers are to: develop collaboration among professionals and researchers to help identify important gaps in our knowledge, foster discussions about promising new methodologies, prioritize research and education needs, and outline a course of action for future research and outreach on urban tree growth and longevity. A few additional papers from the conference will be published in a special section of a future issue of this journal.

Site Selection, Current Design and Management Practices for Land Treatment Units of Petroleum Wastes

1991 ◽  
Vol 24 (12) ◽  
pp. 83-91
Author(s):  
D. C. P. Casarini ◽  
E. Gloeden ◽  
R. C. de A. Cunha
Keyword(s):  
Site Selection ◽  
Management Practices ◽  
Design Management ◽  
Hazardous Waste Management ◽  
Land Treatment ◽  
Management Technology ◽  
Current Design ◽  
Treatment Facilities ◽  
Petroleum Refineries ◽  
Selection Of

Land treatment is defined as the hazardous waste management technology related to application and incorporation of waste into the defined treatment zone of the soil where will occur the degradation, transformation and immobilization of the constituents contained in the applied waste, to ensure protection of surface water and groundwater. This paper describes some criteria for site selection of land treatment facilities used by petroleum refineries, as well as the engineering design, management practices to optimize the process and closure and post-closure techniques.

Using saline reclaimed water on almond grown in Mediterranean conditions: deficit irrigation strategies and salinity effects

2019 ◽  
Vol 19 (5) ◽  
pp. 1413-1421 ◽  
Author(s):  
Gaetano Alessandro Vivaldi ◽  
Salvatore Camposeo ◽  
Giuseppe Lopriore ◽  
Cristina Romero-Trigueros ◽  
Francisco Pedrero Salcedo
Keyword(s):  
Tree Growth ◽  
Deficit Irrigation ◽  
Management Practices ◽  
Water Productivity ◽  
Maximum Yield ◽  
Control Treatment ◽  
Irrigation Season ◽  
Regulated Deficit Irrigation ◽  
Trunk Diameter ◽  
Almond Trees

Abstract The main objective of this study was to acquire agronomic knowledge about the effects of irrigation with saline reclaimed (RW) and desalinated DESERT (DW) water and different irrigation strategies: control full irrigation (FI) and regulated deficit irrigation (RDI) on leaf nutrients, tree growth and fruit quality and yield of almond trees in pots. Our results showed that RW had the highest concentration of some valuable agronomic nutrients such as N, but also of phytotoxic elements (Na and Cl−). Na leaf concentration on RW treatments reached toxic levels, especially under RDI, and toxicity symptoms were shown. Regarding tree growth, cumulate trunk diameter on RW-RDI was significantly lower than on the control treatment and shoot growth was reduced from the beginning of the irrigation season in RW treatments. Maximum yield was reached on RW-FI, 18% higher than the control treatment. However, RDI strategies influenced negatively on yield, being 23% less in RW and 7% less in DW although water productivity was not significantly reduced by water stress. These findings manifest that the combination of RW and RDI can be a promising future practice for almond irrigation, but long-term studies to establish suitable management practices must be developed.

scholarly journals Role of Urban Greening Strategies for Environmental Sustainability—A Review and Assessment in the Context of Saudi Arabian Megacities

2021 ◽  
Vol 13 (11) ◽  
pp. 6457
Author(s):  
Abdullah Addas ◽  
Ahmad Maghrabi
Keyword(s):  
Environmental Sustainability ◽  
Saudi Arabian ◽  
Well Being ◽  
Geographical Information ◽  
Design Management ◽  
Urban Greening ◽  
Policy Makers ◽  
Local Climate ◽  
Questionnaire Surveys

The review and assessment of urban greening patterns play a crucial role in sustainable urban planning and green spaces (GSs) management, helping to improve human well-being. In recent years, various methods and strategies were applied to examine the relationship between GSs and environmental sustainability, but so far, no studies on systematic review and empirical assessments were carried out in Saudi Arabian context. Thus, a comprehensive review and assessment of current GSs patterns and planning strategies are important for achieving urban environmental sustainability. This study aims to assess spatial pattern of GSs across the cities and a bibliographic review on the urban greening strategies in the Saudi context. These six urban strategies were further supported from empirical evidence on Saudi cities. Geographical information system (GIS) techniques and questionnaire surveys were performed for spatial mapping of GSs and the perceived role of GSs strategies of the respondent to environmental sustainability across cities. The findings showed that (i) highest PCGS was reported from Dammam (5.4 m2) followed by Riyadh (1.18 m2), and Jeddah (0.5 m2); (ii) most of the respondents use GSs for picnic (59%), mental well-being (53%), and physical activities (47%), respectively; (iii) GSs play a significant role for local climate regulation such as temperature control (78%) and UHI reduction (81%), and GSs provide thermal comfort (84%), respectively; and (iv) 40% respondents do not use GSs due to the lack of availability, accessibility, design, management, and safety of GSs. Thus, such findings of the study surely assist planners and policy makers to understand and implement the suggested GSs strategies to meet the satisfaction level of the respondents as well as to manage GSs at neighborhood and city level for urban environmental sustainability.

scholarly journals Clustering of equine grass sickness cases in the United Kingdom: a study considering the effect of position-dependent reporting on the space–time K-function

2004 ◽  
Vol 133 (2) ◽  
pp. 343-348 ◽  
Author(s):  
N. P. FRENCH ◽  
H. E. McCARTHY ◽  
P. J. DIGGLE ◽  
C. J. PROUDMAN
Keyword(s):  
United Kingdom ◽  
Management Practices ◽  
Space Time ◽  
Pasture Management ◽  
Local Climate ◽  
Temporal Properties ◽  
Time Interaction ◽  
The United Kingdom ◽  
Grass Sickness ◽  
Type C

Equine grass sickness (EGS) is a largely fatal, pasture-associated dysautonomia. Although the aetiology of this disease is unknown, there is increasing evidence that Clostridium botulinum type C plays an important role in this condition. The disease is widespread in the United Kingdom, with the highest incidence believed to occur in Scotland. EGS also shows strong seasonal variation (most cases are reported between April and July). Data from histologically confirmed cases of EGS from England and Wales in 1999 and 2000 were collected from UK veterinary diagnostic centres. The data did not represent a complete census of cases, and the proportion of all cases reported to the centres would have varied in space and, independently, in time. We consider the variable reporting of this condition and the appropriateness of the space–time K-function when exploring the spatial-temporal properties of a ‘thinned’ point process. We conclude that such position-dependent under-reporting of EGS does not invalidate the Monte Carlo test for space–time interaction, and find strong evidence for space–time clustering of EGS cases (P<0·001). This may be attributed to contagious or other spatially and temporally localized processes such as local climate and/or pasture management practices.

The influence of climate and drought on urban tree growth in southeast Australia and the implications for future growth under climate change

2017 ◽  
Vol 167 ◽  
pp. 275-287 ◽  
Author(s):  
Craig R. Nitschke ◽  
Scott Nichols ◽  
Kathy Allen ◽  
Cynnamon Dobbs ◽  
Stephen J. Livesley ◽  
...  
Keyword(s):  
Climate Change ◽  
Tree Growth ◽  
Urban Tree ◽  
Southeast Australia ◽  
Future Growth

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.

Challenges for Diadromous Fishes in a Dynamic Global Environment

2009 ◽  
Keyword(s):  
Management Practices ◽  
Oil And Gas ◽  
Aboriginal People ◽  
Integrated Management ◽  
New Technology ◽  
Single Species ◽  
Economic Sectors ◽  
Farmed Salmon ◽  
European Contact ◽  
Ecosystem Based Management

<em>Abstract</em>.-Aboriginal people developed integrated ecosystem-based management long before European contact in the 1750s. Ecosystem knowledge contributed the lion's share of precontact wealth. Fisheries drove the early British Columbia economy, but now account for less than 0.5% of gross domestic product. Even thought West Coast research shows that precontact ecosystems could sustain many times current catch value, this still would not weigh heavily against other economic sectors. Single species management has failed to avert the depletion of many fisheries; hence, we now hear calls for ecosystem-based management as opposed to integrated management (used in reference to managing multiple sectors such as fisheries, farmed salmon, oil, and gas, as well as climate change). We suggest that reintegrating ecosystem-based and integrated management necessitates the cooperation of other ocean sectors in generating the information necessary to monitor and restore ecosystems while ensuring that their own operations are sustainable. Currently, there are a number of scientific initiatives, ocean and biological observing platforms, and high-powered models to help develop new management regimes. We consider how this new technology could help to understand the collapse of eulachon <em>Thaleichthys pacificus</em>. Eulachon are of great importance to Native peoples but could well be described as the forgotten anadromous fish of the research community. It is important that both industry and governments recognize the importance of maintaining the long-term viability of these important tools and invest appropriately to ensure sound ecosystem management practices into the future.

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 Green Infrastructures for Urban Water System: Balance between Cities and Nature

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1456
Author(s):  
Robert Sitzenfrei ◽  
Manfred Kleidorfer ◽  
Peter M. Bach ◽  
Taneha Kuzniecow Bacchin
Keyword(s):  
Green Infrastructure ◽  
Management Practices ◽  
Rainwater Harvesting ◽  
Water System ◽  
Green Roofs ◽  
Community Services ◽  
Urban Water ◽  
Local Climate ◽  
Urban Water System ◽  
Climate Resilience

Urban water systems face severe challenges such as urbanisation, population growth and climate change. Traditional technical solutions, i.e., pipe-based, grey infrastructure, have a single purpose and are proven to be unsustainable compared to multi-purpose nature-based solutions. Green Infrastructure encompasses on-site stormwater management practices, which, in contrast to the centralised grey infrastructure, are often decentralised. Technologies such as green roofs, walls, trees, infiltration trenches, wetlands, rainwater harvesting and permeable pavements exhibit multi-functionality. They are capable of reducing stormwater runoff, retaining stormwater in the landscape, preserving the natural water balance, enhancing local climate resilience and also delivering ecological, social and community services. Creating multi-functional, multiple-benefit systems, however, also warrants multidisciplinary approaches involving landscape architects, urban planners, engineers and more to successfully create a balance between cities and nature. This Special Issue aims to bridge this multidisciplinary research gap by collecting recent challenges and opportunities from on-site systems up to the watershed scale.

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