• Journal of Forest and Environmental Science
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• v.38 no.2
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• pp.90-101
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• 2022

The study aims to assess composition, diversity and population indices of natural regeneration of woody species in Jebel El Gerrie forest reserve, Blue Nile State, Sudan. We conducted field work between December 2018 and January 2019. We used random sampling to collect vegetation data in the forest where we made a total of 90 circular sample plots (radius 17.84 m) and distributed them proportionally to the area of each of the four density-based vegetation classes of the forest i.e. high density (C1), medium density (C2), low density (C3) and crop land (C4). In each sample plot we identified all regenerating tree species and counted their regeneration frequencies. We calculated ecological metrics of regeneration frequency, density, abundance, richness, evenness, diversity and importance value index (IVI) and drew abundance rank curve. Results revealed that out of fifteen mature tree species present, natural regeneration of 8 species, which belong to 6 families, was observed. The relatively most frequently naturally regenerating and abundant species were Anogeissus leiocarpa and Combretum hartmannianum. Richness, evenness and diversity of regenerating species were 1.33, 0.82 and 1.7, respectively. One-way ANOVA (α=0.05) of mean regeneration densities disclosed that there were significant differences (F_3,86=16.77, p=0.000) between C2 & C3 (p=0.000) and C2 & C4 (p=0.000). While regeneration of seven tree species were absent, two, two and four species were of good, poor and fair regeneration status, respectively. A comparison of mean density of natural regeneration with that of parent trees reflects a poor regeneration status of the forest. The study provides empirical results on the regeneration status of species and signifies the need for management interventions for species conservation and restoration, maintenance of biodiversity and sustainable production.

• Journal of Forest and Environmental Science
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• v.32 no.2
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• pp.129-139
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• 2016

Study was conducted to investigate tree diversity and its population and regeneration status in homegardens of upper Assam, Northeast India through field study by quadrat method. A total of 154 tree species have been recorded from 135 studied homegardens under 109 genera 53 families. Most of these species (79%) are indigenous to our country, while the rest (21%) arealiens (naturalized and cultivated exotics) by origin. Tree species richness per homegarden varies greatly in different homegardens and is ranged from 5 to 52 tree species with a mean of 22 ($SE{\pm}0.58$). A. malaccensis is the most dominant tree species in the studied homegardens contributed 34% of the total tree density of the documented trees. The tree density is much higher with 4,259 individuals $ha^{-1}$ but, basal area ($36.32m^2ha^{-1}$) is very less. Based on the number of individuals present, very rare species is accounted for 10%, rare species 39%, common species 19%, dominants 14% and predominant species 18% in the present study. The population density of 154 tree species is 4,259 (individuals $ha^{-1}$) for adults (>3.18 cm DBH), 5,902 (individuals $ha^{-1}$) for saplings and 38,164 (individuals $ha^{-1}$) for seedlings. The density of seedlings>saplings>adults represents good regeneration status of tree species in studied homegardens. The population structure study showed that about 8% tree species have good regeneration status, 9% have fair regeneration status, 48% have poor regeneration status and 34% tree species have no regeneration. Study suggests that research and development action is needed to stimulate regeneration of those tree species which having high importance value indices but showing poor or no regeneration. Based on present observation, it can be conclude that homegarden can emerge as an effective means for both economic well-being and biodiversity conservation in upper Assam, Northeast India.

• Journal of Forest and Environmental Science
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• v.37 no.3
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• pp.169-192
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• 2021

Sacred groves are large areas of virgin or human-modified landscape with a diverse range of species that have been protected by local people for centuries due to cultural, religious beliefs, and taboo that the deities live in them and protect the villagers from various calamities. The present study was carried out for quantitative analysis of diversity, population structure, regeneration and conservation status of tree species in the four 36.86 ha sacred groves of Jhargram district in West Bengal. Tree species composition, population structure and regeneration status were analyzed by randomly establishing of 1 ha subplots within the sacred groves. Density, frequency, basal area, abundance, evenness, and other diversity indices were calculated for adult trees with girth at breast height (GBH) >31 cm. A total of 146 tree species belonging to 116 genera distributed in 44 families from 21 orders were recorded. Pterospermum suberifolium, family Malvaceae showed the highest Species Importance Value Index (SIVI, 21.33) and Fabaceae showed the highest Family Importance Value Index (FIVI, 35.59) values respectively. Individuals are categorised into three groups, seedling, sapling and adult based on girth classes. The majority of tree species exhibited good (52.74%) regeneration followed by fairly (24.66%), poor (15.75%) and no regeneration (6.85%) respectively. With the healthy existence of the sacred grove, the overall population structure of tree species showed a strong regeneration potential. The current data will be useful in determining the current status of tree species and will be used by the forest department, politicians, and conservationists to establish management plans for the conservation of priority species in the region. Since the study areas were sacred groves, tribal members were keen to preserve them due to their religious significance.

• Journal of the Korean Professional Engineers Association
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• v.41 no.4
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• pp.32-37
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• 2008

This Report intends theoretical background of urban planning, related national law system and instances to be researched and concluded as follows below and also to be shared with planners working in the field of urban planning technique services. Revision of new laws and systems are necessary for the reasonable Urban Regeneration promotion through comprehensive and systematic supporting composition revision. For the reason hereafter urban regeneration shall be various and inclusive in society, economy, culture, environment, resident participation. etc., the development model for regeneration project complying with Korean Urban Regeneration condition is required. Diversity and flexibility through governance system are required to ensure city competitive power.

• The Journal of the Korea Contents Association
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• v.22 no.8
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• pp.367-376
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• 2022

In this study, changes in commercial areas in Yeongdo-gu urban regeneration region were analyzed in terms of regional revitalization. Urban decline can accelerate the decline of downtown commercial functions, and revitalization of stagnant areas can be evaluated as enhancing the vitality of commercial areas. To reach this objective, dynamic changes in the commercial area in urban regeneration region were confirmed through store density, industry diversity, and restaurant/cafe ratio. As a result of the study, it was found that the store density and industry diversity showed an increasing trend in Yeong-do urban regeneration region. Although it is difficult to find a substantial difference in the ratio of restaurant/cafe, it seems that Yeongseon 2-dong has undergone a relatively large commercial change. This research is significant in that it quantitatively evaluated and analyzed commercial changes in Yeongdo-gu urban regeneration region.

• Journal of the Korean Regional Science Association
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• v.37 no.2
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• pp.3-16
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• 2021

This study analyzed various indicators of new stores targeting urban regeneration areas and compared them with the control group to evaluate the possibility of revitalization of areas where urban regeneration projects are taking place. The results of the study are divided into three categories. First, the density of new start-ups in urban regeneration areas was higher than that of the control group. Through this, urban regeneration areas will bring about an influx of new floating populations and will act as a positive factor in local revitalization. Second, the urban regeneration areas and the control group were compared based on the business type of new start-up stores. As a result of the analysis, urban regeneration areas have a high proportion of industries targeting the active population, not residents. This will promote local activation by attracting the daytime population. Third, the urban regeneration areas and the control group were compared based on the diversity of the business types of newly established stores. As a result of the analysis, urban regeneration areas in metropolitan cities will induce multipurpose shopping for consumers as stores selling different products are concentrated. On the other hand, urban regeneration areas in small cities will induce consumers to compare shopping as stores selling similar products are concentrated.

• International conference on construction engineering and project management
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• 2009.05a
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• pp.1515-1520
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• 2009

Objective of Urban regeneration project is a recovery of urban utilities through a physical, environmental, cultural, industrial and economic regeneration. The current paradigm of urban regeneration is not a simple redevelopment as physical redevelopment or improvement. Urban regeneration project is an overall development including a central commercial capacity and business capacity for administration and management, cultural facilities, sightseeing, a residential area. So Urban regeneration project include a various project. Project management of Urban Regeneration project is widely different with general project management. For that purpose, this research would offer to contribute the success factors of urban regeneration project for successful project. For offering these, this research analyzed the properties of urban regeneration project and success factors of construction project by reviewing a literature. The principal characteristics are variety objectives of each district of urban regeneration project, a diversity of stakeholder's objectives and complex structure of stakeholders, an unstructured decision-making system, a lack of plan for business cooperation. We abstracted factors for urban regeneration from brainstorming and verification by experienced experts. We suggest 2 factors related to achieving a goal effectively and 10 factors related to progress of urban regeneration project efficiently.

• Journal of Ecology and Environment
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• v.46 no.2
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• pp.111-125
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• 2022

Background: Zanthoxylum armatum is one of the 30 prioritized medicinal plants for economic development of Nepal with a high trade value. Understanding the ecology of individual species is important for conservation and cultivation purposes. However, relation of ecological factors on the distribution and populations of Z. armatum in Nepal remain unknown. To address this knowledge gap, an attempt has been made to study the population structure, distribution, and regeneration potentiality of Z. armatum. Vegetation sampling was conducted at six different localities of Salyan district along the elevation range of 1,000 m to 2,000 m. Results: Altogether 50 plant species belonging to 44 genera under 34 families were found to be associated with Z. armatum. Significantly higher species richness was found at Rim (1,400-1,700 m) and Chhatreshwori (1,800-2,000 m) and lower at Kupinde (1,600-1,800 m). The highest population density of Z. armatum was at Kupinde (1,600-1,800 m) with a total of 1,100 individuals/ha. and the lowest at Chhatreshwori (1,800-2,000 m) with 740 individuals/ha. Based on the A/F value (Whitford index), it can be said that Z. armatum has random distribution in the study area. The plants were categorized into seedlings, saplings and adults based on plant height and the status of natural regeneration category determined. The regeneration potentiality of Z. armatum in the study area was fair with the average seedlings and saplings densities of 150 and 100 individuals/ha. Respectively. A Shannon-Weinner index mean value of 2.8 was obtained suggesting high species diversity in the study area. Conclusions: The natural distribution and regeneration of Z. armatum is being affected in the recent years due to anthropogenic disturbances. Increasing market demand and unsustainable harvesting procedures are posing serious threat to Z. armatum. Thus, effective conservation and management initiatives are most important for conserving the natural population of Z. armatum in the study area.

• Korean Journal of Environment and Ecology
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• v.37 no.1
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• pp.13-34
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• 2023

Many ecologists try to understand plant communities and societies' changing processes by interacting with environmental factors. Plant communities formed in the sidings of streams, which are more dynamic than forest vegetation, are closely related to the disturbance regime of streams. U. pumila, which forms communities at the edges of streams, is distributed over the central and northern regions of the Korean Peninsula. In this study, we intended to explain the regeneration of U. pumila communities in the upstream region of the Namhangang River. Heights from the stream surface to the mid-high points of communities increased when the age class of U. pumila communities increased. On the other hand, the height of U. pumila tended to increase and decrease as the age class increased. The richness (S), evenness (J'), diversity (H'), and maximum diversity (H'max) also showed a tendency to increase and then decrease as the age class increased. On the other hand, the number of stems per individual and density (D) decreased as the age class increased. Seedlings of U. pumila failed to regenerate in the communities at the intermediate or higher stage of the age class. Regeneration of seedlings occurred in the spaces formed by the flooding, which occurred periodically in streams. After regeneration, U. pumila communities grew like a single organism. On the other hand, the plant species consisting of U. pumila communities exhibited a process in which the S and H' increased and then decreased as they developed. In other words, we determined that the changes in the species compositions were associated with changes in each species' environment and community. A space where seeds can regenerate seedlings should be provided for the regeneration of U. pumila communities. In the mid/upstream region of the Namhangang River, where the present study focused, newly formed communities were rare because the space required to regenerate U. pumila ceased to exist. Accordingly, we suggest securing an appropriate space for the regeneration of seedlings to maintain the U. pumila communities in the upstream region of the Namhangang River.

• Journal of the Korean housing association
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• v.25 no.5
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• pp.33-41
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• 2014

Today, modern society pursues the paradigm of creative city and regeneration. Cultural regeneration of revitalizing locality by utilizing culture catches attention, is a major approach. Public arts is considered as a catalyst of cultural regeneration, and it inspires vitality to declined districts. Gamcheon Culture Village, Busan has accelerated propagation of revitalization only in recent couple of years, and it has been developing with residents' participation continuously. The purpose of this research is to analyse the revitalizing effects of public arts introduction to Gamcheon Culture Village regeneration. In specific, social, cultural, economical, physical and environmental revitalization effects of the village were defined. The research method is questionnaire survey and 320 reponses from residents and visitors were collected. Data were statistically analyzed with SPSS18.0. The effects of public arts introduction to Gamcheon Culture Village regeneration are positive overall. However, according to the districts of the village, having diversity of art projects in both quantity and quality, the perceptions were different. Regeneration with utilizing public arts for revitalizing declined district, the Gamcheon case shed light on the future. The research indicated the value of public arts and some strategies of allocating art projects.