A field study on solar-induced chlorophyll fluorescence and pigment parameters along a vertical canopy gradient of four tree species in an urban environment

2014 ◽  
Vol 466-467 ◽  
pp. 185-194 ◽  
Author(s):  
Shari Van Wittenberghe ◽  
Luis Alonso ◽  
Jochem Verrelst ◽  
Inge Hermans ◽  
Roland Valcke ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Field Study ◽  
Urban Environment ◽  
Tree Species

scholarly journals Evaluating the capability of Worldview-2 imagery for mapping alien tree species in a heterogeneous urban environment

2020 ◽  
Vol 6 (1) ◽  
pp. 1754146
Author(s):  
Simbarashe Jombo ◽  
Elhadi Adam ◽  
Marcus J. Byrne ◽  
Solomon W. Newete
Keyword(s):  
Urban Environment ◽  
Tree Species

Selection of tree species for forests under climate change: is PSI functioning a better predictor for net photosynthesis and growth than PSII?

2020 ◽  
Vol 40 (11) ◽  
pp. 1561-1571 ◽  
Author(s):  
Martina Pollastrini ◽  
Elisabetta Salvatori ◽  
Lina Fusaro ◽  
Fausto Manes ◽  
Riccardo Marzuoli ◽  
...  
Keyword(s):  
Climate Change ◽  
Chlorophyll Fluorescence ◽  
Tree Species ◽  
Leaf Gas Exchange ◽  
Central Italy ◽  
Common Garden ◽  
Net Photosynthesis ◽  
Photosynthetic Performance ◽  
Seasonal Temperature

Abstract A chlorophyll fluorescence (ChlF) assessment was carried out on oak seedlings (Quercus ilex L., Quercus pubescens Willd., Quercus frainetto Ten.) of Italian and Greek provenance, during the years 2017 and 2018, in a common garden in central Italy planted in 2017. This trial aimed to test the relative performances of the oak species in the perspective of assisted migration as part of the actions for the adaptation of forests to climate change. The assessment of the photosynthetic performance of the tree species included the analysis of the prompt chlorophyll fluorescence (PF) transient and the modulated reflection (MR) at 820 nm, leaf chlorophyll content, leaf gas exchange (net photosynthesis, stomatal conductance), plant growth (i.e., height) and mortality rate after 2 years from the beginning of the experiment. The assessment of the performance of the three oak species was carried out ‘in vivo’. Plants were generated from seeds and exposed to several environmental factors, including changing seasonal temperature, water availability, and soil biological and physical functionality. The results of PF indicate a stable functionality of the photosynthetic system PSII (expressed as FV/FM) across species and provenances and a decline in photochemistry functionality at the I–P phase (ΔVIP) in Q. frainetto, thus indicating a decline of the content of PSI in this species. This result was confirmed by the findings of MR analysis, with the speed of reduction and subsequent oxidation of PSI (VRED and VOX) strongly correlated to the amplitude of ΔVIP. The photosynthetic rates (net photosynthesis, PN) and growth were correlated with the parameters associated with PSI content and function, rather than those related to PSII. The low performance of Q. frainetto in the common garden seems to be related to early foliar senescence with the depletion of nitrogen, due to suboptimal climatic and edaphic conditions. Chlorophyll fluorescence allowed discrimination of populations of oak species and individuation of the less (or/and best) suitable species for future forest ecology and management purposes.

A multiple criteria decision-making approach to put forward tree species in urban environment

Urban Climate ◽  
2014 ◽  
Vol 10 ◽  
pp. 105-118 ◽  
Author(s):  
Ch. Vlachokostas ◽  
A.V. Michailidou ◽  
E. Matziris ◽  
Ch. Achillas ◽  
N. Moussiopoulos
Keyword(s):  
Decision Making ◽  
Urban Environment ◽  
Tree Species ◽  
Multiple Criteria Decision Making ◽  
Multiple Criteria

scholarly journals Weathering Steel in Industrial-Marine-Urban Environment: Field Study

2016 ◽  
Vol 57 (2) ◽  
pp. 148-155 ◽  
Author(s):  
P. Dhaiveegan ◽  
N. Elangovan ◽  
T. Nishimura ◽  
N. Rajendran
Keyword(s):  
Field Study ◽  
Urban Environment ◽  
Weathering Steel

Assessment of the Adaptation of Some Tree Species to the Urban Environment in Bulgaria – a Model Approach

2019 ◽  
Author(s):  
Slaveya Petrova ◽  
Iliana Velcheva ◽  
Bogdan Nikolov ◽  
Plamen Marinov-Serafimov ◽  
Irena Golubinova ◽  
...  
Keyword(s):  
Urban Environment ◽  
Tree Species ◽  
Model Approach

scholarly journals Tree size comparison of some important street trees growing at different sites of Karachi City, Pakistan

2016 ◽  
Vol 20 (2) ◽  
pp. 453-461
Author(s):  
Muhammad Zafar Iqbal ◽  
Amber Khan ◽  
Muhammad Shafiq ◽  
Mohammad Athar ◽  
Zia-Urrehman Farooqi ◽  
...  
Keyword(s):  
Urban Environment ◽  
Tree Species ◽  
Tree Size ◽  
University Campus ◽  
Tree Diameter ◽  
Healthy Environment ◽  
Particulate Air Pollution ◽  
Breast Height ◽  
Ficus Benghalensis ◽  
Wide Range

The importance of trees in urban environment is now widely recognized as they cleanse the particulate air pollution and help to make cities and towns more agreeable places to dwell upon. A detailed survey was conducted to study the size of Alstonia scholaris, Azadirachta indica, Bombax ceiba, Cassia fistula, Eucalyptus sp., Ficus benghalensis, Ficus religiosa and Guaiacum officinale trees in the urban environment of Karachi, Pakistan. Results showed a wide range of variation in tree diameter breast height (17.12-65.50 cm) at M. A. Jinnah Road, University Road (near Hassan Square), North Nazimabad and Karachi University Campus, respectively. A. indica, Eucalyptus sp., and F. benghalensis showed less dbh (tree diameter breast height) at M. A. Jinnah Road as compared to University Road (near Hassan Square), North Nazimabad and Karachi University Campus, respectively. G. officinale growing at University Road (near Hassan Square) showed  ess tree dbh as compared to M. A. Jinnah Road and Karachi University campus. Similarly, the tree size of B. ceiba and A. scholaris was recorded less at Nazimabad as compared to M. A. Jinnah Road, University Road (near Hassan Square) and Karachi University Campus, respectively. C. fistula growing at North Nazimabad site showed low tree dbh as compared to University Road (near Hassan Square) site. A. scholaris growing at Karachi University Campus site showed highest dbh value as compared to all studied sites. The tree size of G. officinale was recorded highest at M. A. Jinnah Road as compared to North Nazimabad, University Road (near Hassan Square) and Karachi University Campus, respectively. Whereas, Eucalyptus sp. and F. benghalensis recorded highest dbh at North Nazimabad site as compared to M. A. Jinnah Road, University Road (near Hassan Square) and Karachi University Campus, respectively. More research is needed on these trees for healthy environment of city. The present study recommends for the complete documentation of tree species growing in city. Such information will be useful to identify characteristics that can be used to select tree species that are better suited for planting on other areas of the city. These findings can be helpful for arboriculturists, environmental scientists and town planners when working on plantation in the selected area.Keywords: Circumference, diameter at breast height, size, roadside tree, urban environment, Pakistan

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