scholarly journals Tree Diversity and Stand Structure of Permanent Biodiversity Monitoring Area in Mount Makiling

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Pastor L. Malabrigo, Jr. ◽  
Arthur Glenn A. Umali ◽  
Cristino L. Tiburan, Jr. ◽  
Nelson M. Pampolina ◽  
Juancho B. Balatibat ◽  
...  
Keyword(s):  
Stand Structure ◽  
Tree Diversity ◽  
Biodiversity Monitoring ◽  
Monitoring Area

scholarly journals Land‐use history determines stand structure and tree diversity in vanilla agroforests of northeastern Madagascar

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Kristina Osen ◽  
Marie Rolande Soazafy ◽  
Dominic Andreas Martin ◽  
Annemarie Wurz ◽  
Adriane März ◽  
...  
Keyword(s):  
Land Use ◽  
Stand Structure ◽  
Tree Diversity ◽  
Land Use History

scholarly journals Tree diversity, stand structure and community composition in tropical forest of Rajaji tiger reserve, Northern India

2018 ◽  
Vol 10 (3) ◽  
pp. 945-953 ◽  
Author(s):  
Akash . ◽  
Navneet . ◽  
B.S. Bhandari
Keyword(s):  
Tropical Forest ◽  
Community Composition ◽  
Stand Structure ◽  
Diversity Index ◽  
Stand Density ◽  
Tree Diversity ◽  
Importance Value Index ◽  
Importance Value ◽  
Northern India ◽  
Tiger Reserve

In present study, we present data on tree diversity, stand structures and community composition in six sites of tropical forest in Rajaji tiger reserve, Northern India. The enumeration of 72 plots results a total of 19,050 individuals, 47 species, 42 genera, 25 families in which Holoptelia integrifolea, Dalbergia sissoo, Shorea robusta, Cassia fistula and Trewia nudiflora were the species which showed higher importance value index (IVI) in the study area. The stand density of the six sites ranges from 149.99 - 397.91 hac-1 where as the total basal area of trees ranges from 3.612 - 46.813 m2/hac-1. The Shannon diversity index ranged from 1.35 to 2.51, Simpson index ranged from 0.097 - 0.446, Margalef index ranged 2.584 - 4.9, The Evenness index ranged from  0.551 - 0.852 in the study area. Further the studied area has showed ample evidences from indices in supporting the higher floristic diversity and stand structure after providing the present area as a status of tiger reserve.

scholarly journals Modeling tree diversity, stand structure and productivity of northern temperate coniferous forests of Mexico

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7051 ◽  
Author(s):  
José Návar
Keyword(s):  
Stand Structure ◽  
Canopy Structure ◽  
Three Dimensional ◽  
Quantitative Information ◽  
Tree Diversity ◽  
Coniferous Forests ◽  
Dimensional Structure ◽  
Long Term Effects ◽  
Stand Productivity ◽  
Statistical Relationships

There is increasing evidence complex forest structure and tree diversity correlates positively with the productivity of forest ecosystems. However, there is little quantitative information regarding the effect of these factors on stand productivity of northern temperate coniferous forests of Mexico. This study aimed to test the hypothesis tree diversity and canopy structure positively associates with forest productivity. Parameterization of tree diversity, stand structure and productivity were carried out on dasometric data from 36 permanent sampling plots re-measured in 1982, 1993, and 2004. Statistical analysis of stand parameters tested the null hypothesis. Statistical relationships revealed well-balanced canopy strata and imbalanced diameter structures positively correlated with stand productivity. Tree diversity was also positively linked with stand productivity, but the effect appeared to be most important in the early to intermediate stages of succession. Further research is required to understand the long-term effects of tree diversity and canopy structure on stand productivity. These preliminary observations stress the importance of prescribing silvicultural practices that maintain the three-dimensional structure of stands and diversity of forest canopies that aim to preserve ecosystem function, diversity, and productivity.

scholarly journals Assessing Tree Coverage and the Direct and Mediation Effect of Tree Diversity on Carbon Storage through Stand Structure in Homegardens of Southwestern Bangladesh

Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1661
Author(s):  
Md Mizanur Rahman ◽  
Gauranga Kumar Kundu ◽  
Md Enamul Kabir ◽  
Heera Ahmed ◽  
Ming Xu
Keyword(s):  
Carbon Storage ◽  
Climate Change Mitigation ◽  
Stand Structure ◽  
Basal Area ◽  
Tree Height ◽  
Tree Diversity ◽  
Total Carbon ◽  
Direct And Indirect Effects ◽  
Tree Coverage ◽  
Change Mitigation

Dealing with two major challenges, climate change mitigation and biodiversity loss, under the same management program, is more noteworthy than addressing these two separately. Homegardens, a sustainable agroforestry system and a home of diverse species, can be a possible choice to address these two issues. In this study, we assessed tree coverage, and the direct and indirect effects of tree diversity on carbon storage in different carbon pools through stand structure in homegardens of southwestern Bangladesh, using Sentinel 2 and field inventory data from 40 homesteads in eight villages. An unsupervised classification method was followed to assess homegardens’ tree coverage. We found a high tree coverage (24.34% of total area of Dighalia) in homesteads, with a high overall accuracy of 96.52%. The biomass and soil organic carbon (p < 0.05) varied significantly among the eight villages, while total carbon stock did not vary significantly (p > 0.05). Shannon diversity had both direct and indirect effects on biomass carbon, upper layer soil organic carbon and total carbon storage, while basal area mediated the indirect effect. Both basal area and tree height had positive effects on biomass carbon and total carbon storage, with basal area having the strongest effect. These findings suggest that we must maintain higher diversity and tree height in order to maximize and sustain carbon storage, where tree diversity increases stand basal area and improves total carbon storage (including soil organic) in homegardens. Therefore, privately managed homegardens could be a potential nature-based solution for biodiversity conservation and climate change mitigation in Bangladesh.

scholarly journals Exploring tree diversity and stand structure of savanna woodlands in southeastern Sudan

2020 ◽  
Vol 12 (4) ◽  
pp. 609-617 ◽  
Author(s):  
Ahmed M. M. Hasoba ◽  
Ahmed A. H. Siddig ◽  
Yousif E. Yagoub
Keyword(s):  
Stand Structure ◽  
Tree Diversity

scholarly journals Aboveground Carbon Storage and Its Links to Stand Structure, Tree Diversity and Floristic Composition in South-Eastern Tanzania

Ecosystems ◽  
2017 ◽  
Vol 21 (4) ◽  
pp. 740-754 ◽  
Author(s):  
Iain M. McNicol ◽  
Casey M. Ryan ◽  
Kyle G. Dexter ◽  
Stephen M. J. Ball ◽  
Mathew Williams
Keyword(s):  
Carbon Storage ◽  
Stand Structure ◽  
Floristic Composition ◽  
Tree Diversity ◽  
South Eastern ◽  
Aboveground Carbon ◽  
Structure Tree ◽  
Aboveground Carbon Storage

scholarly journals Tree Diversity, Stand Structure, and Community Composition in an Island Forest of Pulau Perhentian Besar, Terengganu

2019 ◽  
Vol 7 (4.14) ◽  
pp. 31
Author(s):  
F Pardi ◽  
M N Mohd Said ◽  
A Ismail ◽  
N J Sidik ◽  
K A Radzun ◽  
...  
Keyword(s):  
Community Composition ◽  
Tree Species ◽  
Stand Structure ◽  
Diversity Index ◽  
Peninsular Malaysia ◽  
Forest Stand ◽  
Tree Diversity ◽  
Forest Plot ◽  
Natural Forests ◽  
Forest Stand Structure

The Perhentian Island Archipelago comprising of 11 small islands is located in the state of Terengganu are among the biodiversity rich localities in Peninsular Malaysia. Perhentian Besar with approximately 867 hectares is one of the inhabited island and become the centre of tourism besides Perhentian Kecil. Island is well known as a place for many endemic and endangered living organism as previously demonstrated on other similar forested islands in Southeast Asia. However, there is little attention and effort of protection has been received by the terrestrial ecosystems that reside nearby the coastal. Thus, the present study investigates on tree diversity, stand structure and community composition in the island of Perhentian Besar, Terengganu. Forest plot of 0.5 hectare was established to analyze the floristic composition of tree taxa. The plot was divided into 10 subplots of 25m x 20m. All trees with 5cm diameter breast height (dbh) and above were tagged, measured for dbh size, recorded and identified. Voucher specimens were taken for further verification purposes. A total of 102 tree species were recorded comprising of 28 families and 65 genera. Rubiaceae had the highest number of species (11 species) and with regards to relative dominance, Shorea leprosula (Dipterocarpaceae) gave the highest importance value index (IVi) for species with a value of 8.45%. The Shannon-Weiner Diversity Index (H’) was considered high in the present study with 3.94 (H’max = 4.62) and the Evenness Index (E) value of 0.85 indicated that all species in the present study are almost equally abundant. The forest stand structure had a reverse J-shaped curve for tree size-class distributions as frequently observed in many natural forests, which indicated that the forest stand in the study site had a good recruitment patterns and also a main feature of matured forest in Peninsular Malaysia. The present study will help us to understand the pattern of tree species composition, diversity and forest ecosystem dynamic in Pulau Perhentian Besar.   

Langfristige Entwicklung von zwei Waldgesellschaften im Białowieża-Urwald

2008 ◽  
Vol 159 (4) ◽  
pp. 80-90 ◽  
Author(s):  
Bogdan Brzeziecki ◽  
Feliks Eugeniusz Bernadzki
Keyword(s):  
Species Composition ◽  
Tree Species ◽  
Stand Structure ◽  
Temporal Dynamics ◽  
Structural Parameters ◽  
Forest Communities ◽  
Natural Forests ◽  
Tree Species Composition ◽  
Strong Trend ◽  
Long Term Study

The results of a long-term study on the natural forest dynamics of two forest communities on one sample plot within the Białowieża National Park in Poland are presented. The two investigated forest communities consist of the Pino-Quercetum and the Tilio-Carpinetum type with the major tree species Pinus sylvestris, Picea abies, Betula sp., Quercus robur, Tilia cordata and Carpinus betulus. The results reveal strong temporal dynamics of both forest communities since 1936 in terms of tree species composition and of general stand structure. The four major tree species Scots pine, birch, English oak and Norway spruce, which were dominant until 1936, have gradually been replaced by lime and hornbeam. At the same time, the analysis of structural parameters indicates a strong trend towards a homogenization of the vertical stand structure. Possible causes for these dynamics may be changes in sylviculture, climate change and atmospheric deposition. Based on the altered tree species composition it can be concluded that a simple ≪copying≫ (mimicking) of the processes taking place in natural forests may not guarantee the conservation of the multifunctional character of the respective forests.

Old-growth forest reserves in Slovenia: the past, present, and future

2012 ◽  
Vol 163 (6) ◽  
pp. 240-246 ◽  
Author(s):  
Thomas A. Nagel ◽  
Jurij Diaci ◽  
Dusan Rozenbergar ◽  
Tihomir Rugani ◽  
Dejan Firm
Keyword(s):  
Stand Structure ◽  
Growth Conditions ◽  
Ecosystem Functions ◽  
Future Research ◽  
Old Growth ◽  
Forest Reserves ◽  
The Past ◽  
Old Growth Forest ◽  
Forest Remnants ◽  
Basic Characteristics

Old-growth forest reserves in Slovenia: the past, present, and future Slovenia has a small number of old-growth forest remnants, as well as many forest reserves approaching old-growth conditions. In this paper, we describe some of the basic characteristics of these old-growth remnants and the history of their protection in Slovenia. We then trace the long-term development of research in these old-growth remnants, with a focus on methodological changes. We also review some of the recent findings from old-growth research in Slovenia and discuss future research needs. The conceptual understanding of how these forests work has slowly evolved, from thinking of them in terms of stable systems to more dynamic and unpredictable ones due to the influence of natural disturbances and indirect human influences. In accordance with this thinking, the methods used to study old-growth forests have changed from descriptions of stand structure to studies that address natural processes and ecosystem functions.

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