Monitoring land use change in the Çeşme coastal zone, Turkey using aerial photographs and satellite imaging

2010 ◽  
Vol 22 (3) ◽  
pp. 326-333 ◽  
Author(s):  
Ç. C. Hepcan ◽  
İ. A. Turan ◽  
M. B. Özkan
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Coastal Zone ◽  
Aerial Photographs ◽  
Satellite Imaging

Evaluation of the land use evolution near solid waste landfills using a new weighted environmental index based on GIS techniques

2021 ◽  
Author(s):  
Javier Rodrigo-Ilarri ◽  
Claudia P. Romero-Hernández ◽  
María-Elena Rodrigo-Clavero
Keyword(s):  
Land Use ◽  
Statistical Analysis ◽  
Land Use Change ◽  
Solid Waste ◽  
Aerial Photographs ◽  
Environmental Index ◽  
Land Occupation ◽  
Gis Techniques ◽  
Anthropogenic Intervention ◽  
Over Time

<p>Land use in the nearby of a Municipal Solid Waste (MSW) landfill can be strongly affected by the waste management tasks (transport, landfilling and closure). Effects extend from the phases prior to the construction of the landfill until years after the completion of the landfilling process in areas located beyond the perimeter of the plot occupied by the landfill. In this work a new methodology for the analysis of land use change over time is presented. The methodology is based on the use of a new environmental index named WEI (Weighted Environmental Index). WEI is based on the use of GIS techniques accounting for different information sources (digital cartography, aerial photographs and satellite images). WEI assigns environmental values to land use based on the degree of anthropogenic intervention and its occupation surface. A georeferenced multitemporal statistical analysis is performed considering the values of WEI previously assigned to every land use. The methodology has been applied to analyze the land use change near the main MSW landfills of Valencia Region (Spain) where landfilling is currently the only waste disposal technique available. Data have been obtained from the Spanish Land Occupation Information System (SIOSE) public database and integrate GIS information about land use/land cover on an extensive, high-detailed scale. Results demonstrate the application of the WEI to real case studies and the importance of integrating statistical analysis of WEI evolution over time to arrive at a better understanding of the socio-economic and environmental processes that induce land-use change.</p>

scholarly journals Understanding of Forest Cover Dynamics in Traditional Landscapes: Mapping Trajectories of Changes in Mountain Territories (1824–2016), on the Example of Jeleniogórska Basin, Poland

Forests ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 867 ◽  
Author(s):  
Justyna Jaworek-Jakubska ◽  
Maciej Filipiak ◽  
Anna Napierała-Filipiak
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Cover ◽  
Forest Cover ◽  
Cultural Landscapes ◽  
Local Development ◽  
Arable Land ◽  
Rate Of Change ◽  
Aerial Photographs ◽  
Depth Analysis

Though on a global scale, for ecological reasons, increased forest cover is universally regarded as positive, on a local scale, the reforestation of arable land may pose threats to cultural landscapes by removing characteristic landscape features. Particularly vulnerable are marginal rural areas, e.g., mountain regions, where most traditional land use systems have survived and which are subject to the most spectacular land use change. The purpose of this article is to draw attention to the issue of the management of forest cover in historical cultural landscapes in mountain territories in Poland within the context of widespread land use change in Eastern Europe. Land cover data were obtained from historical and contemporary aerial photographs, as well as topographic maps from five time points between 1824 and 2016. The study was conducted by means of spatio-temporal forest cover trajectory analysis (LCTA), transition and time–depth analysis, and land cover change calculations that were made by means of ArcGIS. Our research indicates that the rate of change has risen considerably in the last two decades, and the current share of forest cover is much bigger than that reflected in the official data. Eight principal forest cover trajectory types were identified. The biggest area is occupied by woodland of long-term stability. Another large group is constituted by forests created on the basis of arable land and grassland as a result of simple conversion at one point in time, mainly in the years 1824–1886 and 1939–1994. At the same time, a sizeable group is made up by areas that have been subject to unplanned cyclical or dynamic changes during various periods. A very important group is comprised new forests that were created in 1994–2016, predominantly as a result of natural succession, that are often not included in official land classifications. The constant expansion of woodlands has led to a shrinking of historical former coppice woodlands. This indicates that the current landscape management mechanisms in Poland are inadequate for protecting the cultural landscape. The barriers include the lack of intersectoral cooperation and the overlooking of the historical context of landscapes. The present situation calls not only for verification of the existing forest policy but also for increasing the role and engagement of local communities, as well as making comprehensive local development plans, all of which may be helped by the findings of our study and of similar research.

Response of Ecosystem Service Value to Land Use Change in Coastal Zone of Bohai Sea in Last 30 Years

2011 ◽  
Vol 347-353 ◽  
pp. 3963-3967 ◽  
Author(s):  
An Ning Suo ◽  
Yong Hai Yu ◽  
Nan Jiang
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Coastal Zone ◽  
Ecosystem Service ◽  
Satellite Remote Sensing ◽  
Bohai Sea ◽  
Land Use Type ◽  
Remote Sensing Images ◽  
Ecosystem Service Value ◽  
Service Value

Aimed to evaluate response of ecosystem service value to land use change in coastal zone of Bohai sea in last 30years, Series satellite remote sensing images obtained in 1988, 1998 and 2007 were employed to surveyed land use change integrated field surveying,firstly.Then an unit table of ecosystem services function value of main land use type was created. The response of ecosystem service value to land use change in 13 coastal zone regions of the Bohai sea in last 30 years was assessed. The result showed: the ecosystem service value lost 60.74×108RMB in coastal zone of Bohai sea caused by land use change in last 30years. Amony the 13 coastal zone region, the ecosystem service value increased only in Yantai coastal zone region and Dalian coastal zone region, there are 0.36×108RMB and 0.20×108RMB,respectively. While the ecosystem service value reduced in 11 coastal zone regions, such as Yingkou coastal zone region, Panjin coastal zone region, Binzhou coastal zone region, et al.the total lost value is 60.30×108RMB.

scholarly journals Optimal Sampling Intensity in South Korea for a Land-Use Change Matrix Using Point Sampling

Land ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 677
Author(s):  
Ga-Hyun Moon ◽  
Jong-Su Yim ◽  
Na-Hyun Moon
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Land Use Change ◽  
South Korea ◽  
Greenhouse Gas ◽  
Aerial Photographs ◽  
Optimal Sampling ◽  
Statistical Efficiency ◽  
Sampling Intensity ◽  
Change Matrix

To report changes in land use, the forestry sector, and land-use change matrix (LUCM), monitoring is necessary in South Korea to adequately respond to the Post-2020 climate regime. To calculate the greenhouse gas statistics observing the principle of transparency required by the Climate Change Convention, a consistent nationwide land-use classification and LUCM are required. However, in South Korea, land-use information is available from the 5th National Forest Inventory conducted in 2006 onwards; therefore, developing methods to determine historical LUCM information, including the base year required by the Intergovernmnetal Panel on Climate Change (IPCC), is essential. To determine the optimal sampling intensity for measuring systematic land-use changes and to estimate the corresponding area of land-use categories for previously unmeasured years, seven intensities—2 × 2 km to 8 × 8 km—were tested using the areas of the 3rd and 4th aerial photographs in time series for forestland, cropland, grassland, wetland, and settlements, according to their standard deviations and estimates of uncertainty. Analyses of statistical accuracy, statistical efficiency, economic efficiency, and convenience showed that a sampling intensity of 4 × 4 km was ideal. Additionally, the categorized areas of unmeasured land-use years were calculated through linear interpolation and extrapolation. Our LUCM can be utilized for developing a national greenhouse gas inventory.

scholarly journals Impacts of Land-use Transformation on Agriculture land in Afghanistan, Kabul city as case study

2021 ◽  
Vol 6 (1) ◽  
pp. 52
Author(s):  
Hamidullah Amin ◽  
Mansoor Mohammad Helmi
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Google Earth ◽  
Capital City ◽  
Aerial Photographs ◽  
Master Plan ◽  
Sustainable Solutions ◽  
Land Use Transformation ◽  
Agricultural Areas

The change in land-use over a certain period of time is inevitable. This paper investigates the issue of land use change on agricultural land that has become a phenomenon affecting the economy and environment in Kabul, the capital city of Afghanistan. Agriculture is the main economic source of Afghan cities, however, due to rapid population growth, population densification, and inability to apply Kabul city’s master plan and regulations, a large portion of land cover transformed from agricultural areas to unplanned developments and have shifted the function of communities from productive societies into consumer and dependent societies. The study sheds light on Yakatoot as a study farmland area in Kabul city to present an alive example of what is happening in the reality of agricultural land in Kabul. Therefore, approaches for sustainable conversion of agricultural land in Kabul city is a vital quest that needs to be followed seriously. The study illustrates Afghanistan's land laws. It identifies the social, economic and environmental impacts of land-use change. This paper applies qualitative methods, where data and analysis worked by using field surveys, aerial photographs from Google Earth and data collected from CRIDA. It also investigates international experience regarding land-use change and sustainable solutions. Therefore, due to positive implications of urban agriculture practice as a feasible and sustainable approach to tackle the ongoing challenges related to land-use change in Kabul city, this paper suggests inducing this approach in Kabul city’s master plan and other urban initiatives because it will not only lead to environmental protection, but also, it will re-establish economic stability, enhance social welfare, revive city’s historic identity.

scholarly journals What explains the elevational upward shifts at the treeline ecotone?

2020 ◽  
Author(s):  
Àngela Manrique-Alba ◽  
Santiago Beguería
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Land Use Change ◽  
Forest Cover ◽  
Climatic Factors ◽  
Canopy Cover ◽  
Aerial Photographs ◽  
Mountain Range ◽  
Tree Line ◽  
Treeline Ecotone

<p>Temperatures have increased worldwide in the last decades, with the most pronounced and rapid changes occurring at high altitudes and latitudes. Climate change has played an important role in modifying the altitudinal location of the treeline ecotone, i.e. the transition from timber line (the upper forest limit, defined by the presence of a continuous forest cover) to the treeline (the last upright trees reaching 2 or 3 m in height). Moreover, the influence of recent land use change (e.g., changes in pastoral use, tourism development) in treeline dynamics is increasingly acknowledged. We have compiled a dataset of treeline changes over the Pyrenees mountain range, extending over more than 12000 linear kilometres, representing a large study area that extends across a broad range of environmental conditions. The main objective was to assess the effects of climate change, past land uses and physiography on the treeline dynamics between 1956 and 2015. To explore the variation in treeline shifts we used pairs of aerial photographs taken in 1956 and 2015 and we identified the position of the tree line using a criterion based on canopy cover thresholds. Our findings show significant differences between tree line dynamics for the two analysed periods and allow us to infer the relative importance of climatic factors, land use change, and local anthropogenic influence modulating the treeline structure and its dynamics.</p>

Polycentric Urban Development and Land-Use Change in a Transitional Economy: The Case of Guangzhou

1998 ◽  
Vol 30 (6) ◽  
pp. 1077-1100 ◽  
Author(s):  
F Wu
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Development ◽  
Land Reform ◽  
Empirical Studies ◽  
Land Use Changes ◽  
Transitional Economy ◽  
Policy Implications ◽  
Aerial Photographs ◽  
Research Attention

Since economic reform in 1979 China has witnessed dramatic changes. In particular, the adoption of the new land leasing system in 1987 has led to the transformation of the urban internal structure of this country. Perhaps because of the lack of data, empirical studies lag far behind the rapid urban development and land-use changes currently taking place in China. In this paper the author attempts to examine empirically land-use changes in a fast growing city—Guangzhou—by analyzing data obtained from aerial photographs. The author suggests that some new characteristics have emerged in the distribution of land-use change since the introduction of land reform. Polycentric urban development, a phenomenon that has been attracting wide research attention in Western contexts, has also appeared in the transitional economy. The author demonstrates that besides population density, housing and land value, and firm location, land-use change can be used as a prompt and reliable indicator of polycentric urban development. A range of policy implications are briefly outlined.

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