Temporal Analysis of Land use Pattern Changes In Chittagong District of Bangladesh using Google Earth and ArcGIS

2018 ◽  
Vol 14 (1a) ◽  
pp. 160
Author(s):  
A.J. Amale ◽  
R.L. Shiyani ◽  
N.J. Ardeshna ◽  
B. Swaminathan

Author(s):  
N. S. Partigöç ◽  
Ç. Tarhan

<p><strong>Abstract.</strong> The primary issues related the spatial organization of urban settlements are based on the development of density and land use decisions leading due to the market mechanisms. The current spatial land use pattern of cities have emerged depending various factors such as the migration movements increased rapidly from the 1950s, the rapid and uncontrolled urbanization, the pressures of rent directing the market mechanisms, etc. This urbanization process also has accompanied many problems as the insecure construction for disasters, dense and solid urban texture, various weaknesses or deficiencies of urban infrastructure. As a consequence of the evaluation for social facility areas (gaps in urban area, open and green areas, etc.) as “potential investment areas”, the loss of solid &amp;ndash; void ratio and dense built-environment have been experienced in urban centres and also urban development directions. The main aim of this study is to examine the spatial effects of land use decisions between the years of 2002 &amp;ndash; 2017 under the influence of the Law 6360 in terms of urban planning discipline. These spatial variations related land use pattern are determined using Google Earth and Geographical Information Systems (GIS). According to the results, it is clearly understood that current land use patterns in Guzelbahce district have changed significantly in 15-years period. The results of analyses related the case area which the urban sprawl has seen are discussed and a variety of policies have been developed.</p>


2018 ◽  
Vol 105 (1-3) ◽  
Author(s):  
B. Sreya ◽  
A. Vidhyavathi

2021 ◽  
Vol 42 (1) ◽  
pp. 106-111
Author(s):  
A. Shivakrishna ◽  
◽  
K.K. Ramteke ◽  
S. Kesavan ◽  
P. Prasad ◽  
...  

Aim: The present study is an attempt to analyze the land use pattern of Kolleru Lake in and around by using the techniques of remote sensing and GIS to detect the temporal changes of the Kolleru Lake. Methodology: The 1938 and 1967 years topographic sheets and Landsat-5 TM of 1997 and Resoucesat-2 LISS 4 of 2017 satellite images were used and analyzed by the latest version of Arc GIS 10.4 and ERDAS IMAGINE 2016 (Version 16.00). Unsupervised and supervised classification was done for 1997 and 2017 images, respectively. Results: It was estimated from the topographic map of 1938 that the total lake boundary area was 230.15 km2. Digital image processing of 2017 satellite data revealed that the lake area of 76.9 km2 (32.45%) only remained degraded, extensively colonized by macrophytes. The land use/land cover maps of 1997 and 2017 revealed that lake area was significantly occupied by aquaculture which amounted to 84 km2 (36.53%) and 56 km2 (24.35%), respectively, and no aquaculture activity was reported from 1938 and 1967 toposheets. Interpretation: The geospatial analysis data gives accurate and reliable information and associated factors. The spatio-temporal analysis data provide a significant foundation for monitoring activities in other lake systems, and are applicable to monitoring wetland use patterns in other sites of international importance. Key words: Eutrophication, Geospatial technology, Kolleru wetland, Macrophytes, Remote sensing


Author(s):  
Joharudin Samion ◽  
Ismail Said ◽  
Lee Yoke Lai ◽  
Tun Mohd Irfan Mohd Suria Affandi

The issues of community resilience arise from the need to develop an understanding of how people would respond to internal and external disturbances. In-depth discussion towards the impact of a city to a neighbouring district has little been discussed. The District of Pontian is located west of Iskandar Malaysia. It has received an unprecedented level of infrastructural development to boost the economy of Iskandar Malaysia. This study examines the land use pattern change of Pontian District impacted by Iskandar Malaysia. Additionally, the study aims to assess the social, economic and environmental capital and the factors that contribute to the adaptabilities and resilience of farmer communities in Pontian. Build-up area for each period using Google earth satellite imagery from the year 2005 to 2015, was classified to analyze the change of build-up area. Markov Chains technique is applied to predict changes of land use. Next, survey questionnaires were utilized to measure the levels of community resilience. Subsequently, an interview was employed to identify the factors that contribute to the stresses. The results indicate that rapid development of Iskandar Malaysia gave an impact to agricultural land and changed the land use pattern of Pontian. The findings revealed the perspective of individuals, community, and system resilience capacity to survive. It was found that farmers were able to adapt to various stresses. The result indicates that individuals and communities can be adaptive, absorptive, and transformative. The findings can assist in formulation of strategies for communities to be better prepared for the current and future impact of the triple threat of urbanization, globalization and climate change.


2012 ◽  
Vol 2 (10) ◽  
pp. 1-3 ◽  
Author(s):  
Dr. Premakumara Dr. Premakumara ◽  
◽  
Seema Seema

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