scholarly journals The Influence of Increased Salvage Felling on Forwarding Distance and the Removal—A Case Study from Croatia

Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Andreja Đuka ◽  
Zoran Bumber ◽  
Tomislav Poršinsky ◽  
Ivica Papa ◽  
Tibor Pentek
Keyword(s):  
Spatial Distribution ◽  
Management Plan ◽  
Management Unit ◽  
Negative Effects ◽  
Forest Operations ◽  
Spatial Reference ◽  
Infrastructure Network ◽  
Gis Environment ◽  
Research Period

During the seven-year research period, the average annual removal was by 3274 m3 higher than the average annual removal prescribed by the existing management plan (MP). The main reason lies in the high amount of salvage felling volume at 55,238 m3 (38.3%) in both the main and the intermediate felling due to oak dieback. The analysis of forest accessibility took into account the spatial distribution of cutblocks (with ongoing felling operations) and the volume of felled timber for two proposed factors: (1) the position of the cutblock and (2) the position of the removal. Cutblock position factor took into account the spatial position of the felling areas/sites, while removal position factor besides the spatial reference took into account the amount of felled timber (i.e., volume) both concerning forest infrastructure network and forest operations. The analysed relative forest openness by using geo-processing workflows in GIS environment showed four types of opening areas in the studied management unit (MU): single-opened, multiple-opened, unopened and opened areas outside of the management unit. Negative effects of the piece-volume law and low harvesting densities on forest operations are highlighted in this research due to high amount of salvage felling particularly in the intermediate felling by replacing timber volume that should have come from thinnings.

scholarly journals Linking life-history traits, spatial distribution and abundance of two species of lugworms to bait collection: A case study for sustainable management plan

2018 ◽  
Vol 140 ◽  
pp. 433-443 ◽  
Author(s):  
Lola De Cubber ◽  
Sébastien Lefebvre ◽  
Charline Fisseau ◽  
Vincent Cornille ◽  
Sylvie Marylène Gaudron
Keyword(s):  
Spatial Distribution ◽  
Life History ◽  
Sustainable Management ◽  
Life History Traits ◽  
Management Plan

scholarly journals Multivariate Geostatistical Modeling and Risk Analysis of Beach Litter: A Case Study of Playa Blanca Beach, Chile

2020 ◽  
Vol 17 (22) ◽  
pp. 8384
Author(s):  
Mohammad Maleki ◽  
Kevin Soria
Keyword(s):  
Spatial Distribution ◽  
Geostatistical Simulation ◽  
Geostatistical Modeling ◽  
Negative Effects ◽  
Cigarette Butts ◽  
Risk Of Injury ◽  
Different Types ◽  
Beach Litter ◽  
Simulation Results

Beach litter is a worldwide problem that has several negative effects. A first step in preventing an environmental hazard is to determine and model the level of contamination. In this paper, geostatistical simulation is used to model two main forms of beach litter (cigarette butts and sharp items) in one of the most contaminated beaches in Antofagasta, Chile. A hundred realizations of cigarette butts and broken glass are generated to emulate their joint spatial distribution. The simulation results are used to classify the beach into different areas with respect to the risk of injury by broken glass and the level of contamination by cigarette butts. The models obtained can be used by local authorities in beach clean-up programs and by visitors to beaches in choosing the safest and cleanest areas. The results demonstrate the capability of geostatistical simulation algorithms to model different types of beach litter.

scholarly journals Evaluation of Accessibility to Public Services in the City of Aqaba Using Geographic Information Systems

2021 ◽  
Vol 13 (2) ◽  
pp. 17
Author(s):  
AbedAlhameed AlFanatseh ◽  
Shahed Saqallah
Keyword(s):  
Spatial Distribution ◽  
Information Systems ◽  
Geographic Information Systems ◽  
Public Services ◽  
Average Distance ◽  
Geographic Information ◽  
Educational Services ◽  
Gis Environment ◽  
The City

In this study, we identify methods of measuring accessibility to public services in the city of Aqaba. Accessibility is an indicator of the efficiency of their spatial distribution in relation to residential neighborhoods in the city. Administrative, commercial, educational, health and entertainment services were selected for a case study because they are the most important services. We used spatial analysis tools in Arc Map within the geographic information systems (GIS) environment to measure direct distances between neighborhood centres and public services and to determine the number of services within specific ranges (1,000 m, 500 m, 200 m), using the three most common methods of measuring accessibility: the distance to the nearest service, the number of services within a certain distance or time, and the average distance for all services. The results of this research indicate that educational services have the highest degree of accessibility, followed by slight differences among recreational, administrative, and commercial services. Health services lag further behind.

Short-Term Rental Development and Overtourism

2021 ◽  
pp. 134-146
Author(s):  
Flavio Andrew Do Nascimento Santos
Keyword(s):  
Spatial Distribution ◽  
Spatial Analysis ◽  
Metropolitan Area ◽  
Case Study Research ◽  
Economic Benefits ◽  
Supply Side ◽  
Demand Side ◽  
Negative Effects ◽  
Short Term

The boom of short-term rental (STR) intensifies the debate on overtourism because of some negative effects on destinations. Conversely, the STR was a way out in moments of crisis. Until now, only a few studies extend the analysis outside the limits of individual cities; that's why this case-study research was conducted by the analyses of Airbnb listings and the tourists' spatial distribution in Lisbon Metropolitan Area (LMA). For this purpose, this chapter uses two cartographic tools: 1) Airbnb listing from Inside Airbnb Project of Lisbon and 2) Geotaggers' World Atlas (map of sites that tourists took photos). Also, institutional Lisbon urban planning plans fed this study. Methodologically, combining the selected maps is a way to understand tourism spatial analysis by bringing together data on supply-side (rooms) and demand-side (distribution of tourists). The analysis demonstrates that a time-spatial distribution of visitors and the STR throughout the LMA could contribute to avoiding tourism congestion and proper distribution of economic benefits.

Development and regional planning within the decentralized administrative frame: case study (the Jordanian Experiment)

2018 ◽  
Vol 1 (2) ◽  
pp. 60-72
Author(s):  
Mansour Safran
Keyword(s):  
Regional Planning ◽  
The Other ◽  
Negative Effects ◽  
Administrative Procedures ◽  
The Way

This aims to review and analyze the Jordanian experiment in the developmental regional planning field within the decentralized managerial methods, which is considered one of the primary basic provisions for applying and success of this kind of planning. The study shoed that Jordan has passed important steps in the way for implanting the decentralized administration, but these steps are still not enough to established the effective and active regional planning. The study reveled that there are many problems facing the decentralized regional planning in Jordan, despite of the clear goals that this planning is trying to achieve. These problems have resulted from the existing relationship between the decentralized administration process’ dimensions from one side, and between its levels which ranged from weak to medium decentralization from the other side, In spite of the official trends aiming at applying more of the decentralized administrative policies, still high portion of these procedures are theoretical, did not yet find a way to reality. Because any progress or success at the level of applying the decentralized administrative policies doubtless means greater effectiveness and influence on the development regional planning in life of the residents in the kingdom’s different regions. So, it is important to go a head in applying more steps and decentralized administrative procedures, gradually and continuously to guarantee the control over any negative effects that might result from Appling this kind of systems.   © 2018 JASET, International Scholars and Researchers Association

Participatory Mapping in Browns Canyon National Monument, Colorado (USA)

2017 ◽  
Vol 1 (1) ◽  
pp. 1-16
Author(s):  
John Harner ◽  
Lee Cerveny ◽  
Rebecca Gronewold
Keyword(s):  
Land Management ◽  
Planning Process ◽  
Management Plan ◽  
Bureau Of Land Management ◽  
National Monument ◽  
Resource Managers ◽  
Different Types ◽  
Us Forest Service ◽  
Natural Resource Managers

Natural resource managers need up-to-date information about how people interact with public lands and the meanings these places hold for use in planning and decision-making. This case study explains the use of public participatory Geographic Information System (GIS) to generate and analyze spatial patterns of the uses and values people hold for the Browns Canyon National Monument in Colorado. Participants drew on maps and answered questions at both live community meetings and online sessions to develop a series of maps showing detailed responses to different types of resource uses and landscape values. Results can be disaggregated by interaction types, different meaningful values, respondent characteristics, seasonality, or frequency of visit. The study was a test for the Bureau of Land Management and US Forest Service, who jointly manage the monument as they prepare their land management plan. If the information generated is as helpful throughout the entire planning process as initial responses seem, this protocol could become a component of the Bureau’s planning tool kit.

Modelling and Simulation of NO2 Dispersion Phenomenon in Atmosphere by Analytical-Experimental Methods

2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Delia Perju ◽  
Harieta Pirlea ◽  
Gabriela-Alina Brusturean ◽  
Dana Silaghi-Perju ◽  
Sorin Marinescu
Keyword(s):  
Mathematical Model ◽  
Nitrogen Dioxide ◽  
Modeling And Simulation ◽  
Human Health ◽  
Experimental Methods ◽  
Negative Effects ◽  
Real Situation ◽  
Experimental Values ◽  
The Mathematical Model

The European laws and recently the Romanian ones impose more and more strict norms to the large nitrogen dioxide polluters. They are obligated to continuously improve the installations and products so that they limit and reduce the nitrogen dioxide pollution, because it has negative effects on the human health and environment. In this paper are presented these researches made within a case study for the Timi�oara municipality, regarding the modeling and simulation of the nitrogen dioxide dispersion phenomenon coming from various sources in atmosphere with the help of analytical-experimental methods. The mathematical model resulting from these researches is accurately enough to describe the real situation. This was confirmed by comparing the results obtained based on the model with real experimental values.

Patterns of Social Inclusion and Exclusion Among Youth Living in Stigmatized Neighborhoods

2020 ◽  
Author(s):  
Fabiana Espíndola Ferrer
Keyword(s):  
Social Integration ◽  
Residential Segregation ◽  
Neighborhood Effects ◽  
Social Inclusion ◽  
Urban Neighborhoods ◽  
High Poverty ◽  
Ethnographic Case Study ◽  
Negative Effects ◽  
The Social

This chapter is an ethnographic case study of the social integration trajectories of youth living in two stigmatized and poor neighborhoods in Montevideo. It explains the linkages between residential segregation and social inclusion and exclusion patterns in unequal urban neighborhoods. Most empirical neighborhood research on the effects of residential segregation in contexts of high poverty and extreme stigmatization have focused on its negative effects. However, the real mechanisms and mediations influencing the so-called neighborhood effects of residential segregation are still not well understood. Scholars have yet to isolate specific neighborhood effects and their contribution to processes of social inclusion and exclusion. Focusing on the biographical experiences of youth in marginalized neighborhoods, this ethnography demonstrates the relevance of social mediations that modulate both positive and negative residential segregation effects.

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