scholarly journals Assessment of the Diversity of Large Tree Species in Rapidly Urbanizing Areas along the Chao Phraya River Rim, Central Thailand

2021 ◽  
Vol 13 (18) ◽  
pp. 10342
Author(s):  
Lamthai Asanok ◽  
Torlarp Kamyo ◽  
Monthon Norsaengsri ◽  
Teeka Yotapakdee ◽  
Suwit Navakam
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Detrended Correspondence Analysis ◽  
Urban Trees ◽  
Urban Landscapes ◽  
Importance Value ◽  
Urban Tree ◽  
Large Trees ◽  
Chao Phraya River ◽  
Central Thailand

Urban trees provide numerous ecosystem services in cities such as pollution absorption and reduced urban heat island intensity, energy use, and mental fatigue. Understanding urban tree species diversity can enhance tree planning and management in rapidly urbanizing areas. However, few studies have examined the effects of urbanization on urban tree diversity in Thailand. This study assessed the diversity of large trees in urban landscapes including 11 cities along the 372 km Chao Phraya River Rim in central Thailand. Species diversity, importance value, and distribution were evaluated in each city. Our survey documented 987 large trees belonging to 65 species, 48 genera, and 31 families. The dominant species of Dipterocarpus alatus and Hopea odorata had the highest importance and relative abundance. The highest abundance of large trees was seen in the rural city of Sing Buri, while large urban cities such as Ayutthaya and Bangkok exhibited the highest species diversity. Detrended correspondence analysis indicated that the diversity of unique species was high in large urban cities, while dominant and common species were ubiquitous in rural cities. These findings suggest that large trees are few in number but exhibit high species diversity in large rapidly urbanizing cities. Therefore, preserving good site conditions is critical for the survival of large trees in urban cities. Heritage tree registration may aid preservation efforts and enhance the benefits of these large trees in rapidly urbanizing areas.

scholarly journals TREE SPECIES DIVERSITY IN A PRISTINE MONTANE FOREST PREVIOUSLY UNTOUCHED BY HUMAN ACTIVITIES IN FOJA MOUNTAINS, PAPUA, INDONESIA

REINWARDTIA ◽  
2018 ◽  
Vol 17 (2) ◽  
Author(s):  
Asep Sadili ◽  
Kuswata Kartawinata ◽  
Herwasono Soedjito ◽  
Edy Nasriadi Sambas
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Human Activities ◽  
Diversity Index ◽  
Basal Area ◽  
Montane Forest ◽  
Tree Species Diversity ◽  
Importance Value ◽  
Montane Forests ◽  
Species Area

ADILI, A., KARTAWINATA, K., SOEDJITO, H. & SAMBAS, E. N. 2018. Tree species diversity in a pristine montane forest previously untouched by human activities in Foja Mountains, Papua, Indonesia. Reinwardtia 17(2): 133‒154. ‒‒ A study on structure and composition of the pristine montane forest previously untouched by human activities was conducted at the Foja Mountains in November 2008. We established a one-hectare plot divided into 100 subplots of 10 m × 10 m each. We enumerated all trees with DBH ≥ 10 cm which diameters were measured, heights were estimated and habitats were noted. We recorded 59 species, 42 genera and 27 families, comprising 693 trees with the total basal area (BA) of 41.35 m2/ha. The forest had lower species richness compared to those of lowland forests in Kalimantan, and Sumatra and montane forests in West Java. The Shannon-Wiener’s diversity index was 3.22. Nothofagus rubra (Importance Value, IV=47.89%) and Parinari corymbosa (IV=40.3%) were the dominant species, constituting the basis for designating the forest as the Nothofagus rubra - Parinari corymbosa association. To date, the dominance of N. rubra is unique to the Foja Mountains, as elsewhere in Papua the montane forests were dominated by N. pullei or other species. The species-area curve indicated a minimal area of 5000 m2. On the family level Fagaceae (IV=53.23%), Chrysobalanaceae (IV=40.53%) and Myristicaceae (IV=26.43%) were dominant. Verti-cally the forest consisted of four strata (A–D). In each stratum Nothofagus rubra, Platea latifolia, Parinari corymbosa and Myristica hollrungii were dominant. The diameter class distribution of Nothofagus rubra, Parinari corymbosa and Platea latifolia led us to assume that these species were regenerating well.

scholarly journals Effective Placement Methods of Vermicompost Application in Urban Tree Species: Implications for Sustainable Urban Afforestation

2020 ◽  
Vol 12 (14) ◽  
pp. 5822
Author(s):  
Huong Thi Thuy Dao ◽  
Jeong Min Seo ◽  
Jonathan O. Hernandez ◽  
Si Ho Han ◽  
Woo Bin Youn ◽  
...  
Keyword(s):  
Nutrient Uptake ◽  
Tree Species ◽  
Growth Parameters ◽  
Belowground Biomass ◽  
Chamaecyparis Obtusa ◽  
Urban Trees ◽  
Nutrient Concentrations ◽  
Larix Kaempferi ◽  
Urban Tree ◽  
Slow Growing

Knowledge on growth and nutrient uptake characteristics of urban trees and effective strategies to grow trees can help accomplish the goal of urban afforestation initiatives in a sustainable way. Thus, the study investigated the effects of different vermicompost (VC) application placements on the growth and nutrient uptake of three contrasting tree species (fast-growing Betula platyphylla and Larix kaempferi and slow-growing Chamaecyparis obtusa) to provide implications for growing tree stocks for sustainable urban afforestation programs. Five placement methods were used in the greenhouse trial: no fertilization (CON), surface placement (VCs), subsurface placement at 6-cm depth (VCc), bottom placement (35-cm depth (VCb)), and mixed with soil (VCm). We measured the growth parameters such as height, root collar diameter (RCD), and biomass and analyzed foliar nutrient concentrations in response to different placement treatments of VC. Relative height growth was the highest at VCc (132% (B. platyphylla), 114% (L. kaempferi)) and VCs ((57%) C. obtusa). Significant improvement in aboveground and belowground biomass growth of all species at VCs and VCc compared to the other treatments was also observed. Generally, VC treatments significantly increased N concentration compared to CON in all species. In conclusion, fertilizing the fast- and slow-growing urban tree species using VCs and/or VCc is relevant to growing high quality planting stocks for sustainable urban afforestation purposes.

scholarly journals TREE SPECIES DIVERSITY AND ETHNOBOTANY OF DEGRADED PEAT SWAMP FOREST IN CENTRAL KALIMANTAN

REINWARDTIA ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 27-54
Author(s):  
Titi Kalima ◽  
Sri Suharti ◽  
Sumarhani Sumarhani ◽  
Liam A. Trethowan
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Local People ◽  
Tree Species Diversity ◽  
Importance Value ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Central Kalimantan ◽  
Large Tree ◽  
Peat Swamp

KALIMA, T., SUHARTI, S., SUMARHANI & TRETHOWAN, L. A. 2020. Tree species diversity and ethnobotany of degraded peat swamp forest in Central Kalimantan. Reinwardtia 19(1): 27‒54. ‒‒ Most peat swamp forest has been degraded. This has resulted in decline of its biodiversity. The objective of this study was to identify the composition, diversity, and plants used by local people in Bagantung swamp forest. The study was conducted on degraded peat swamp forest area in Bagantung, Mantangai Sub-District, Kapuas District, Central Kalimantan Province. The Shannon-Wiener (H’) and the Importance Value (IV) indices were used for analyzing the species diversity and the species importance across a number of forest plots. Useful tree species were identified by interviewing local villagers. There were 2,562 individual plants in 32 plots (each plot 20 m × 20 m). We identified 100 tree species and 16 non-tree species, from 74 genera, and 46 families. Myrtaceae, Sapotaceae, Ebenaceae, Dipterocarpaceae and Clusiaceae were the most dominant families. Large tree (H’=1.46) and small tree diversity was similar (H’=1.75). In both small and large tree size classes Calophyllum nodusum was the most dominant species. There were 16 tree species and two non-tree species used by local people for house and boat construction, furniture, handicrafts, medicine, and insect repellent.  

scholarly journals Subtropical–Tropical Urban Tree Water Relations and Drought Stress Response Strategies

2013 ◽  
Vol 39 (3) ◽  
Author(s):  
Roger Kjelgren ◽  
Daryl Joyce ◽  
David Doley
Keyword(s):  
Tree Species ◽  
Urban Trees ◽  
Dry Forest ◽  
Deciduous Tree ◽  
Tropical Species ◽  
Forest Species ◽  
Deciduous Species ◽  
Evergreen Species ◽  
Urban Tree ◽  
Tropical Cities

Understanding native habitats of species successful as subtropical and tropical urban trees yield insights into how to minimize urban tree water deficit stress experienced during monsoonal dry periods. Equatorial and montane wet forest species rarely subject to drought are generally absent in subtropical and tropical cities with pronounced monsoonal dry seasons. Species native to monsoonal dry forests appear to have wide environmental tolerances, and are successful as urban trees in many tropical cities. Monsoonal dry forest species have a tendency to be deep rooted to avoid drought, with leaf habits falling along an avoidance to tolerance spectrum. Dry deciduous species, typically found on more fertile soils, maximize growth during the monsoonal wet season with high photosynthesis and transpiration rates, then defoliate to avoid stress during the dry season. Evergreen tree species, typically found on less fertile soils, have a higher carbon investment in leaves that photosynthesize and transpire less year-round than do dry deciduous species. Dry deciduous tree species are more common urban trees than dry evergreen species explicitly due to more ornamental floral displays, but also implicitly due to their ability to adjust timing and duration of defoliation in response to drought. An empirical study of three tropical species exhibiting a range of leaf habits showed isohydric behavior that moderates transpiration and conserves soil water during drying. However, dry evergreen species may be less adaptable to tropical urban conditions of pronounced drought, intense heat, and limited rooting volumes than dry deciduous species with malleable leaf habit.

scholarly journals Composition and importance value of tree-families in undisturbed and disturbed moist tropical forest of eastern Nepal

2017 ◽  
Vol 7 (1) ◽  
pp. 41-46
Author(s):  
Tilak Prasad Gautam ◽  
Tej Narayan Mandal
Keyword(s):  
Ecosystem Services ◽  
Species Diversity ◽  
Tropical Forest ◽  
Tree Species ◽  
Tree Species Diversity ◽  
Forest Disturbances ◽  
Forest Stands ◽  
Importance Value ◽  
The Status ◽  
Family Importance Value

Tropical forest disturbances have reduced the tree species diversity and hereby, the ecosystem services provided by them. Present study was carried out to understand the status of tree-families in terms of their dominance in the undisturbed and disturbed stands of moist tropical forest in eastern Nepal. As per the result, the dominant family in both the forest was Dipterocarpaceae, with family importance value of 53.6 and 53.9 in undisturbed and disturbed stands, respectively. The second dominant family in both forest stands was Rubiaceae.

scholarly journals Anthropogenic Pressure on Tree Species Diversity, Composition, and Growth of Balanites aegyptiaca in Dinder Biosphere Reserve, Sudan

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 483
Author(s):  
Elmugheira M. I. Mohammed ◽  
Elhag A. M. H. ◽  
Patrick A. Ndakidemi ◽  
Anna C. Treydte
Keyword(s):  
Population Structure ◽  
Species Diversity ◽  
Tree Species ◽  
Biosphere Reserve ◽  
Anthropogenic Pressure ◽  
Tree Species Diversity ◽  
Natural Forests ◽  
Importance Value ◽  
Balanites Aegyptiaca ◽  
Disturbed Site

Anthropogenic disturbances, such as illegal harvesting and livestock browsing, often affect natural forests. However, the resulting tree species diversity, composition, and population structure have rarely been quantified. We assessed tree species diversity and importance value indices and, in particular, Balanites aegyptiaca (L.) Del. population structure, across 100 sample plots of 25 m × 40 m in disturbed and non-disturbed sites at the Dinder Biosphere Reserve, Sudan, from April 2019 to April 2020. We found that the tree species diversity in non-disturbed sites was more than double that of disturbed sites (p < 0.001, T = 32.6), and seedlings and saplings comprised more than 72% of the entire tree population (F2,48 = 116.4, p = 0.034; F2,48 = 163.2, p = 0.021, respectively). The tree density of B. aegyptiaca in the disturbed site was less than half that of the non-disturbed site (p = 0.018, T = 2.6). Balanites aegyptiaca was seven times more aggregated in disturbed sites compared to more regularly spaced trees in non-disturbed sites (T = 39.3 and p < 0.001). The poor B. aegyptiaca population status of the disturbed site shows that the conservation of this vulnerable species is essential for a sustainable management and utilization scheme.

scholarly journals How Much Space Does My Shade Tree Need? Planting Space Recommendations for Medium and Large Trees in Florida Cities

EDIS ◽  
2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Deborah R. Hilbert ◽  
Andrew Koeser ◽  
Brooke L. Moffis ◽  
JuWanda G. Rowell ◽  
Drew C. McLean
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Urban Infrastructure ◽  
Urban Trees ◽  
Urban Landscapes ◽  
Canopy Trees ◽  
Large Trees ◽  
Urban Heat ◽  
Wrong Place ◽  
Heat Buildup

Trees provide urban landscapes with shade, beauty, and habitat. They can also help lessen the effects of flooding and urban heat buildup while storing carbon dioxide, a major greenhouse gas. When planted in the wrong place, however, trees can damage urban infrastructure. To maximize the benefits provided by urban trees, we need better-informed tree selection and larger planting spaces with the capacity to support big-canopy trees. This new 8-page fact sheet is intended to help arborists, urban foresters, landscape designers, landscapers, and anyone else responsible for the planting of trees in developed areas make informed decisions regarding the planting width requirements of the trees they select. Written by Deborah R. Hilbert, Andrew K. Koeser, Brooke L. Moffis, JuWanda G. Rowell, and Drew C. McLean, and published by the UF/IFAS Environmental Horticulture Department.https://edis.ifas.ufl.edu/ep592

scholarly journals VEGETATION STRUCTURE AND REGENERATION OF VAN PANCHAYAT FORESTS IN KUMAUN HIMALAYA, UTTARAKHAND

2015 ◽  
Vol 4 (3) ◽  
pp. 69-80 ◽  
Author(s):  
Jyoti Pandey ◽  
L. S. Lodhiyal
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Vegetation Structure ◽  
Tree Density ◽  
Forest Site ◽  
Importance Value Index ◽  
Importance Value ◽  
Regeneration Potential ◽  
Kumaun Himalaya ◽  
Hill Slope

Study deals with the vegetation structure and regeneration in Van Panchayat forests in Nainital of Kumaun Himalaya. The analysis of forest was done in three sites i.e. hill top, hill slope and hill base forest site. Tree density in Jungalia and Soangaon Van Panchayats ranged from 80-2070 and 50-5270 individual ha-1 respectively. Importance value index was 8.11-137.29 in Jungalia gaon Van Panchayat while 15.65-143.04 in Soangaon Van Panchayat. Species diversity ranged from 0.09-1.97 in Jungalia gaon and 0.17-0.44 in Soangaon Van Panchayat. The occurrence of higher number of seedlings in both the Van Panchayat showed good regeneration potential of tree species. International Journal of EnvironmentVolume-4, Issue-3, June-August 2015Page: 69-80

scholarly journals Urban trees in the Cities of Matsuyama (Japan) and Yogyakarta (Indonesia): tree species diversity, design, and culture

2018 ◽  
Vol 203 ◽  
pp. 012013 ◽  
Author(s):  
A Syahbudin ◽  
D T Adriyanti ◽  
B Mulyana ◽  
A Meinata ◽  
S P Phenomenon ◽  
...  
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Urban Trees ◽  
Tree Species Diversity
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