scholarly journals Persepsi Publik Terhadap Pengelolaan Lingkungan Hidup di Wilayah Jayapura–Papua

2021 ◽  
Vol 13 (1) ◽  
pp. 58-66
Author(s):  
Puguh Sujarta ◽  
Suharno Suharno ◽  
Farmawaty Farmawaty ◽  
Leonardo A. Numberi ◽  
Irma Rahayu ◽  
...  
Keyword(s):  
Environmental Management ◽  
Land Use ◽  
Natural Resources ◽  
Urban Area ◽  
Sampling Method ◽  
Educational Institution ◽  
Survey Questionnaire ◽  
Environmental Condition ◽  
The City

Papua has a huge diversity of natural resources which can be categorized as well managed compare to other areas in Indonesia. The city of Jayapura and its surrounding are arranged to become an urban area nowadays. As an impact, many sector has changing including its land use. This research aims to understanding the knowledge, perception, and assesment of people regarding the environment particularly in Jayapura and its environs. The research was conducted in Jayapura City, Jayapura Regency and Keerom Regency with sampling method using survey, questionnaire and documentation. This research revealed that 53.0–90.0% of respondent knowing about environmental management and most of them (90.0%) gained those information from educational institution such as schools. Regarding government participation in environmental management, respondent answered that it is around 69.0–76.0% while for infrastructure and monitoring it is around 52.4-74.0% and 41.0-70.6% respectively. Concerning the environmental condition and its management the rate was 6.20 which can be categoized as good.Key words: people perception; environment; government; Jayapura. 

scholarly journals Study on Temporal and Spatial Variation Characteristics and Influencing Factors of Land Use Efficiency in Xi’an, China

2019 ◽  
Vol 11 (23) ◽  
pp. 6649
Author(s):  
Jing Huang ◽  
Dongqian Xue
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Influencing Factors ◽  
Urban Land ◽  
Urban Land Use ◽  
Western China ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Underdeveloped Areas ◽  
The City

China’s urban land use has shifted from incremental expansion to inventory eradication. The traditional extensive management mode is difficult to maintain, and the fundamental solution is to improve land use efficiency. Xi’an, the largest central city in Western China, was selected as the research area. The super-efficiency data envelopment analysis (DEA) model and Malmquist index method were used to measure the land use efficiency of each district and county in the city from the micro perspective, and the spatial-temporal change characteristics and main influencing factors of land use efficiency were analyzed, which not only made up for the research content of urban land use efficiency in China’s underdeveloped areas, but also pointed out the emphasis and direction for the improvement of urban land use efficiency. The results showed that: (1) The land use efficiency of Xi’an reflected the land use intensive level of the underdeveloped areas in Western China, that is, the overall intensive level was not high, the gap between the urban internal land use efficiency was large, the land use efficiency of the old urban area and the mature built-up area was relatively high, and the land use efficiency of the emerging expansion area and the edge area was relatively low. (2) Like the eastern economically developed areas, the land use efficiency of western economically underdeveloped areas was generally on the rise, while Xi’an showed the U-shaped upward evolution characteristics, and there were four types of changes in the city, that is, highly intensive, medium intensive, high–medium–low-intensive, and intensive–extensive. (3) Various cities should configure resources and optimize mechanism to improve their land use efficiency based on economic and social development. During the study period, Xi’an showed the law of evolution from the south edge area and the emerging expansion area to the main urban area. (4) The improvement of technological progress was the main contribution factor of the land use efficiency in underdeveloped areas of China, and the low-scale efficiency was the main influence factor that caused low land use efficiency. In future urban land use, efforts should be made to optimize and upgrade technology and strictly control the extensive use of land.

scholarly journals DIAGNÓSTICO DAS ÁREAS DE PRESERVAÇÃO PERMANENTE DE NASCENTES NA ÁREA URBANA DO MUNICÍPIO DE IRATI-PR

FLORESTA ◽  
2010 ◽  
Vol 40 (1) ◽  
Author(s):  
Magda Adriana Lozinski ◽  
Rafaelo Balbinot ◽  
Diego Venâncio ◽  
Paulo Costa de Oliveira Filho ◽  
Waldir Nagel Schirmer
Keyword(s):  
Land Use ◽  
High Resolution ◽  
Urban Area ◽  
Drainage Basin ◽  
Technological Advance ◽  
New Techniques ◽  
Remote Sensors ◽  
Water Springs ◽  
The City

O avanço tecnológico e o surgimento de novas técnicas e sensores remotos, capazes de gerar imagens de alta resolução espacial e espectral, tornam os diagnósticos ambientais cada dia mais precisos. O presente trabalho tem como objetivo localizar as nascentes e delimitar suas áreas de preservação permanente utilizando imagens orbitais de alta resolução do sensor Quickbird, bem como identificar o uso do solo dessas áreas para confronto com a legislação. A área de estudo foi a bacia do Arroio dos Pereiras, na área urbana do município de Irati, PR. Os resultados demonstraram que todas as nascentes encontram-se de forma irregular de acordo com o código florestal. Palavras-chave:   Diagnóstico ambiental; área de preservação permanente; geoprocessamento; nascentes.   Abstract Diagnosis of the permanent preservation areas of the springs of a drainage basin located in the urban area in Irati-PR. The technological advance and the sprouting of new techniques and remote sensors, capable to generate images of high resolution spatial and spectral, become the environment diagnosis more precise at each day. The present work has as objective to locate the springs and to delimit its areas of permanent preservation using orbital images of high resolution of the Quickbird sensor, as to well as identify the land use of these areas for confrontation with the legislation. The study area was the basin of the Pereira’s stream in the urban area of the City of Irati - PR. The results had demonstrated that all the springs are at illegal form according to the forest law.Keywords: Environmental diagnosis; permanent preservation area; geothecnologies; water springs.

scholarly journals Examination of the Factors That Influence Public Perception of Mythically-Based Human Behavior in Disaster Conditions

2020 ◽  
Author(s):  
Vladimir M. Cvetković ◽  
Marina Jovanović
Keyword(s):  
Human Behavior ◽  
Public Perception ◽  
Sampling Method ◽  
Preventive Measures ◽  
Economic Factors ◽  
Survey Questionnaire ◽  
The Public ◽  
The Subject ◽  
The City ◽  
Research Show

Starting from the importance of risk perception for taking certain preventive measures to protect people and their property from disasters, the subject of the research is to examine the factors influencing public perception of mythically-based human behavior in disaster conditions. Using the random sampling method, 250 adult respondents were surveyed in the city of Belgrade, using a specially created and adapted survey questionnaire. The results of the research show that there is no statistically significant influence of gender, age, educational and economic factors on the public perception of human behavior in disaster conditions. The results of the research can be used to improve strategies and campaigns based on risk assessment, aimed at improving the safety of people in disasters.

scholarly journals URBAN FOOTPRINT OF MUMBAI - THE COMMERCIAL CAPITAL OF INDIA

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
T. V. RAMACHANDRA ◽  
H. A. BHARATH ◽  
M. V. SOWMYASHREE
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Urban Areas ◽  
Urban Expansion ◽  
Geographical Area ◽  
Remote Sensing Data ◽  
City Centre ◽  
Natural Ecosystems ◽  
The City ◽  
Urban Footprint

Urban footprint refers to the proportion of paved surface (built up, roads, etc.) with the reduction of other land use types in a region. Rapid increase in the urban areas is the major driver in landscape dynamics with the significant erosion in the quality and quantity of the natural ecosystems. The urban expansion process hence needs to be monitored, quantified and understood for effective planning and the sustainable management of natural resources. Cities and towns have been experiencing considerable growth in urban area, population size, social aspects, negative environmental and geographical in?uence, and complexity. Mumbai, the commercial capital of India, has experienced a spurt in infrastructural and industrial activities with globalization and opening up of Indian markets. Unplanned urbanization has resulted in dispersed growth inperi-urban pockets due to socio-economic aspects with the burgeoning population of the city. Consequent to this, there has been an uneven growth pattern apart from the increase in slums in and around the city. This has necessitated the understanding of the urbanization pattern and process focusing especially on the expanding geographical area, its geometry and the spatial pattern of its development. This communication discusses the urban footprint dynamics of Mumbai using multi-temporal remote sensing data with spatial metrics. Land use analysis indicated a decrease of vegetation by 20% with an increase in urban extent by 155% during the last three decades. Landscape metrics aided in assessing the spatial structure and composition of the urban footprints through the zonal analysis by dividing the region into four zones with concentric circles of 1 km incrementing radius from the city centre. The study reveals a significant variation in the composition of the urban patch dynamics with increasing complexity and aggregation of urban area at the centre and sprawl at the outskirts. Shannon’s entropy further confirms of sprawl with time. Further zoning with the circular gradients aided in understanding the transition process of land use categories into urban patch.

scholarly journals Features of land use optimization of water protection zones and coastal protective strips in Kyiv by the method of land management

2021 ◽  
pp. 9-9
Author(s):  
T. Kravchuk ◽  
Keyword(s):  
Land Use ◽  
Natural Resources ◽  
Land Management ◽  
Coastal Protection ◽  
Water Protection ◽  
Building Conditions ◽  
Protection Zone ◽  
Protection Zones ◽  
Land Use Optimization ◽  
The City

In the process of working on the article, the author considered the issue of establishing and ensuring compliance with the land use regime of water protection zones and coastal protection strips (on the example of the city of Kyiv). The urgency of considering this issue lies in the importance of optimizing land use as one of the most important tools to protect water bodies from technogenic and anthropogenic impacts and, in general, to improve the water-ecological situation of the hydrological regime. From which the purpose of the work follows, namely, to study the features of optimization of land use of water protection zones and coastal protection zones in Kyiv by the method of land management for the environmental safety of the city's population and public welfare in general. As a result of the research process, the theoretical basis was formed by scientific works related to the essence of the task, as well as legislative and regulatory legal acts of Ukraine on land use regulation. The information and statistical base was an extract from the scheme of planning restrictions of the General Plan of Kyiv and data of the State Service of Ukraine on Geodesy, Mapping and Cadastre, the State Statistics Service of Ukraine. As a result of research, it was revealed that according to the legislation on the lands of cities and urban-type settlements, the size of the water protection zone, as well as the coastal protection zone, is established according to existing at the time of installation of a water protection zone concrete building conditions. Nevertheless, the example of the city of Kyiv shows that such information may be missing. The author describes the problematic issues of the land management process of works on establishing the boundaries of water protection zones and coastal protection zones and restrictions on the use of land and other natural resources. Expertly determined the approximate possible area, taking into account the specific building conditions and possible flooding at the maximum flood water level. The model of optimization of land use of the territorial community by means of establishment of restrictions in use of the earths and other natural resources occupied by water objects is proposed. At the same time, the model combines technological, instructional and administrative tasks of land use optimization. In addition, the optimality criteria and restrictions on the use of these criteria proposed in the model, which make it possible to unambiguously determine the location of the boundaries of water bodies and restrictions on the use of lands and other natural resources, taking into account the interests of land users and legislation. Keywords: land use optimization, water protection zones, coastal protection strips, land management process

scholarly journals Influence of a Great Plains Urban Environment on a Simulated Supercell

2018 ◽  
Vol 146 (5) ◽  
pp. 1437-1462 ◽  
Author(s):  
Larissa J. Reames ◽  
David J. Stensrud
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Great Plains ◽  
Urban Areas ◽  
City Center ◽  
Land Use Pattern ◽  
Near Surface ◽  
Wind Speeds ◽  
The North ◽  
The City

Abstract The effect of urban areas on weakly forced precipitation systems has been studied extensively. However, interactions between urban areas and strongly forced convection, such as supercells, remain relatively unexamined. The present study uses simulations of a supercell to quantify the impacts of a large plains urban area on the evolution and strength of a supercell. An initial ensemble of simulations (CTRLE) of a supercell over homogeneous land use is performed using the WRF-ARW Model. Additionally, 108 simulations are conducted in which the land-use pattern of Dallas–Ft. Worth, Texas, is placed inside the model domain, with the city center shifted to be in or near the path of the supercell. Simulations with urban areas are compared to CTRLE, with the aid of hierarchical clustering analysis to form statistically similar groups of simulations. Clustering analyses identify groups of ensemble members with closely located urban areas that have similar patterns of 0–1-km updraft helicity and near-surface minimum temperature and maximum wind speeds. Comparison of these groups of ensemble members to CTRLE suggests the urban area has a significant impact on storm characteristics, particularly on low-level rotation and mesocyclone track. Simulations where the storm passes to the north of or directly over the city center late in its life cycle deviate most significantly from CTRLE. In these members, low-and midlevel mesocyclone strength increases, and the mesocyclone tracks farther south when compared to CTRLE.

scholarly journals The Role of Customary Land Ownership in Land-Use Conversion in the Peri-urban of Bukittinggi, Indonesia

2019 ◽  
Vol 175 (4) ◽  
pp. 533-555
Author(s):  
Ira Safitri Darwin ◽  
Haryo Winarso ◽  
Denny Zulkaidi
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Urban Areas ◽  
Land Use Regulations ◽  
West Sumatra ◽  
Formal Expansion ◽  
Administrative Area ◽  
Customary Land ◽  
The Village ◽  
The City

Abstract Taluak is located in the peri-urban area of the city of Bukittinggi, in Agam Regency, West Sumatra, Indonesia. Bukittinggi is rapidly expanding into this peri-urban area. Due to a lack of sound land-use regulations, the growing population and increasing development are encroaching into the peri-urban area. In 1999, the administrative area of Bukittinggi was formally expanded to include some of the surrounding land that had previously been part of Agam Regency. However, although the physical development of the city has encroached into parts of Agam Regency, including Taluak, the communities of the village refused to be administratively included in Bukittinggi. One of their reasons for this refusal is a belief that such urbanization will harm the culture and traditions of the village. This article aims to explain how the communities of Taluak have resisted the formal expansion of Bukittinggi to include them in order to maintain their culture and traditions of land management and to estimate how long such resistance can survive. The article also explains how the process of land conversion in Taluak is carried out, particularly the conversion from rural use into urban use, which creates rurban (rural-urban) areas.

scholarly journals Mudança de Uso do Solo na Bacia do Rio Vieira, em Montes Claros/MG (Change of Land Use on River Basin Vieira, in Montes Claros/MG)

2012 ◽  
Vol 4 (4) ◽  
pp. 779 ◽  
Author(s):  
Marcos Esdras Leite ◽  
Itamar Souza Santos ◽  
Jefferson Willian Lopes Almeida
Keyword(s):  
Land Use ◽  
Urban Area ◽  
San Francisco ◽  
River Basin ◽  
Sewage Treatment ◽  
Environmental Problems ◽  
Minas Gerais ◽  
Original Vegetation ◽  
The City ◽  
Urban Activity

A bacia hidrográfica do Vieira está inserida no município de Montes Claros, no norte de Minas Gerais. O rio Vieira é um dos principais afluentes do Rio Verde Grande e este deságua no rio São Francisco. Essa bacia se destaca por drenar a área urbana de Montes Claros, logo, os problemas ambientais decorrentes da atividade urbana atingem diretamente o rio Vieira. O objetivo do trabalho foi compreender as transformações de uso do solo na bacia do rio Vieira, utilizando instrumentos geotecnológicos. Os dados dos sensores orbitais mostram que, entre 1989 e 2009, as mudanças mais importantes foram: a recuperação de parte da cobertura vegetal original e o crescimento da área urbana de Montes Claros. Esta última mudança trouxe problemas ambientais graves para a bacia do Vieira. No entanto, medidas, como o tratamento do esgoto está sendo realizada, a fim de mitigar os impactos causados pelo crescimento da cidade. A criação de unidades de conservação foi outra ação que resultou em ganhos ambientais, como a regeneração do Cerrado em espaços degradados.Palavras-Chave: Bacia hidrográfica, uso do solo, sensoriamento remoto e SIG.  Change of Land Use on River Basin Vieira, in Montes Claros/MG  ABSTRACTThe watershed of Vieira is inserted in the municipality of Montes Claros, in northern Minas Gerais. The river Vieira is one of the main tributaries of the Rio Verde Grande river and this flows into San Francisco. This basin is drained out for the urban area of Montes Claros. Thus, the environmental problems of urban activity directly affect the river Vieira. In this sense, this work used geo tools to understand the changes of land use in river basin Vieira. The data from orbital sensors show that between 1989 and 2009, the most important changes were part of the recovery of original vegetation cover and growth of the urban area of Montes Claros. This last change has brought serious environmental problems for the basin of Vieira. However, measures such as sewage treatment is being performed in order to mitigate the impacts caused by the growth of the city. The creation of protected areas was another action that resulted in environmental gains, as the regeneration of degraded areas in the Cerrado. Keywords: River basin, land use, remote sensing and GIS.

scholarly journals Examination of the factors that influence public perception of mythically-based human behavior in disaster conditions

2020 ◽  
Vol 100 (2) ◽  
pp. 161-179
Author(s):  
Vladimir Cvetkovic ◽  
Marina Jovanovic
Keyword(s):  
Human Behavior ◽  
Public Perception ◽  
Sampling Method ◽  
Preventive Measures ◽  
Economic Factors ◽  
Survey Questionnaire ◽  
The Public ◽  
The Subject ◽  
The City ◽  
Research Show

Starting from the importance of risk perception for taking certain preventive measures to protect people and their property from disasters, the subject of the research is to examine the factors influencing public perception of mythically-based human behavior in disaster conditions. Using the random sampling method, 250 adult respondents were surveyed in the city of Belgrade, using a specially created and adapted survey questionnaire. The results of the research show that there is no statistically significant influence of gender, age, educational and economic factors on the public perception of human behavior in disaster conditions. The results of the research can be used to improve strategies and campaigns based on risk assessment, aimed at improving the safety of people in disasters.

scholarly journals The combination use of microclimate measurement network, urban type classification and mesoscale climate prediction model to estimate the thermal condition distribution

2021 ◽  
Author(s):  
Yu Cheng Chen ◽  
Fang Yi Cheng ◽  
Cheng Pei Yang ◽  
Tzu Ping Lin
Keyword(s):  
Land Use ◽  
Prediction Model ◽  
Urban Area ◽  
Tall Buildings ◽  
Climate Prediction ◽  
Distribution Area ◽  
Surface Model ◽  
Climate Data ◽  
Climate Conditions ◽  
The City

<p>The climate in Taiwan is hot and humid, and urban show high-density development. The dense urban development has increased the heat storage of the ground and buildings. The compact arrangement of tall buildings causes the narrowness of the urban space to block the sky's view and hinders the relatively smooth airflow, which will cause problems such as poor ventilation in the city and cause high thermal risk in the city. In the past, when obtaining climate data, if only the climate stations set by the Central Meteorological Bureau were used, the distance between the stations was too far, and the coverage of the ground around the distribution area was almost the same, resulting in significant differences between the predicted results and the actual climate conditions. Therefore, this research established a microclimate measurement network to obtain climate data. For the urban environment information, the urban built environment data, such as digital surface model, and building information, were regulated data or required to purchase. Therefore, this study uses the Local Climate Zone (LCZ) which can consider land use and land cover simultaneously and can be freely produced by satellite images. The typology classification method can be used to view the city by the height and density of obstacles. LCZ can solve the inaccuracy of estimation caused by the mixed land-use in Taiwan and assign various types of related data from the scheme such as heat capacity, albedo, and roughness through classification results. This study herein applies LCZ combined with a mesoscale climate prediction model Weather Research and Forecasting (WRF) to predict the climate conditions within the study's scope and compare them with actual measured values. It can be used for urban climate assessment. The research results preliminarily show that by applying the LCZ classification and its corresponding factors to WRF with Multi-layer urban canopy model which can consider vertical surfaces such as building volume facades horizontal surfaces such as streets and roofs. The predicted temperature and actual temperature will be slightly underestimated, and it can be approximately between 1.5°C to 2.5°C in the urban area at night and 0.5°C to 1°C during the day. This phenomenon may be due to the relative ratio of buildings and road width in Taiwan, making the actual night. The heat dissipation effect is poor, and it is easy to cause heat accumulation in the urban area.</p>

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