Assessing the Dynamics of Urban Growth and Land Use Changes in Jeli Using Geospatial Technique

Land use change pattern in Jeli is been given a focus as part of tool for land planning anddevelopment. An increasing of population in Jeli make this study is relevant to aid an understandingon land use changes in this area due to the demanded for development and rapid land utilisation.Land use change pattern can be obtained via geospatial technique by Geographical InformationSystem (GIS) together with satellite imagery analysis. In this study, land use maps produced fromsupervised classification using maximum likelihood algorithm give a high accuracy of 92.05%.From classified land use images, urban expansion index (SI) were then calculated from year 1984to 2012. Pearson’s correlation analysis discovered a strong negative correlation between forest andagricultural areas which reflected that with increased of agriculture area, forest reserve was founddepleted. The SI of Jeli showed a low to rapid growth in 1994 and 1997 to 2012 respectively. Thestudy reflected the progressive development in Jeli promotes sustainable usage of forest area wheneffort of reforestation was carried out forming a co-existence land use category between forest andagriculture.

Download Full-text

Impacts of land‐use changes on soil fertility in Okomu Forest Reserve, Southern Nigeria

Land Degradation and Development ◽

10.1002/ldr.3869 ◽

2020 ◽

Author(s):

Glory O. Enaruvbe ◽

Afolabi O. Osewole ◽

Ozien P. Mamudu ◽

Jesús Rodrigo‐Comino

Keyword(s):

Land Use ◽

Soil Fertility ◽

Land Use Changes ◽

Forest Reserve ◽

Southern Nigeria

Download Full-text

Assessing the Impacts of Urban Expansion on Habitat Quality by Combining the Concepts of Land Use, Landscape, and Habitat in Two Urban Agglomerations in China

Sustainability ◽

10.3390/su12114346 ◽

2020 ◽

Vol 12 (11) ◽

pp. 4346 ◽

Cited By ~ 1

Author(s):

Huina Wang ◽

Lina Tang ◽

Quanyi Qiu ◽

Huaxiang Chen

Keyword(s):

Land Use ◽

Habitat Quality ◽

Habitat Degradation ◽

Early Stage ◽

Urban Expansion ◽

Land Use Changes ◽

Yangtze River Delta ◽

Spatiotemporal Variability ◽

Quality Model ◽

Urban Agglomerations

Understanding the spatiotemporal variability of habitat quality as a function of land-use changes is important for expanding scientific knowledge of ecological conservation. In this study, the impacts of land-use change on habitat quality were assessed in two urban agglomerations in China at different stages of development, namely (1) the Yangtze River Delta Urban Agglomeration (YRDUA), which has reached the middle and late stage of urbanization, and (2) the Golden Triangle of Southern Fujian (GTSF), which has reached the middle and early stage. The Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) habitat quality model was applied to determine the habitat quality and the degree of habitat degradation in these two agglomerations. Overall, the habitat quality in the YRDUA was found to be clearly inferior to that in the GTSF. In the GTSF, more than 65% of the habitat was of good or excellent quality, whereas in the YRDUA, less than 45% of the habitat reached this quality. By combining the concepts of land use, landscape, and habitat, the boundary of degradation and the general increase in habitat quality from 2000 to 2015 were found to be mainly related to the landform, the dominant landscape, and the concentration of non-habitat areas. Additionally, the type, distribution, and fragmentation of the dominant habitat were shown to play important roles in habitat quality. Moreover, changes in industrial composition over time were demonstrated to be critical drivers of changes in areas of construction land.

Download Full-text

Greened pedestrian linkage for Yangon central business district with its open spaces

E3S Web of Conferences ◽

10.1051/e3sconf/20199105001 ◽

2019 ◽

Vol 91 ◽

pp. 05001

Author(s):

Myo Thu Aung ◽

Alexander Belkin

Keyword(s):

Land Use ◽

Urban Expansion ◽

Land Use Changes ◽

Central Business District ◽

Environmental Problems ◽

Land Utilization ◽

Negative Effects ◽

Land Use Pattern ◽

Effective Part ◽

Business District

Yangon has passed a phase of rapid constructional development. This development has resulted in the growth of Yangon over its previous administrative boundaries and in tremendous changes of land use. Changes in land use have led to a growing number of environmental problems and a lack of infrastructure. The negative effects of spontaneous land use pattern, such as insufficient land use and damage of the natural resources along with the urban environmental problems of the mega-size urban area, can hardly be overcome after arising. They have to be minimized in advance by a foresight concept of efficient framework for land utilization pattern of future urban expansion in the Yangon City. This city has higher population density due to more accessible and positive economic situations than other areas. In this paper, the greened pedestrian linkage for Yangon Central Business District (C.B.D.), in which the largest number of colonial period buildings in Southeast Asia is located, is suggested. The essential requirements for the improvement and landscaping links are indicated, and this linkage may be an effective part of the green areas for the city’s ecological framework.

Download Full-text

Recent ecological trajectory of lake Taihu and land-use history reconstructed from lake sediment DNA

10.5194/egusphere-egu2020-3011 ◽

2020 ◽

Author(s):

Charline Giguet-Covex ◽

Qi Lin ◽

Ludovic Gielly ◽

Fabien Arnaud ◽

Ke Zhang

Keyword(s):

Land Use ◽

Urban Areas ◽

Trophic State ◽

Lake Taihu ◽

Rapid Development ◽

Urban Expansion ◽

Land Use Changes ◽

Lake Ecosystems ◽

Agriculture Industry ◽

Yangtze Floodplain

More than 80% of shallow lake ecosystems in the Yangtze floodplain suffer significant disturbances from the 50&#8217;s, especially eutrophication. These environmental degradations and subsequent loss of services are related with the important and rapid development of the agriculture, industry, urban areas and the population boom in the region. Lake Taihu is one of the largest lakes of the floodplain and represents an important water resource (for drinking and fishing) for the population of the two big cities on the lake shore. This lake experimented two shifts toward the degradation of the trophic state: one in the 50-60&#8217;s and a second in 80&#8217;s.In order to document the causes of these ecological shifts, we applied the DNA metabarcoding approach on lake sediments and focused on plants as proxy of land use. Whereas this proxy has been successfully applied in many lakes over the world, it has never been tested in large shallow lakes and not in China either.We show important changes in land use in 50&#8217;s and 80&#8217;s related with agricultural developments (i.e. intensification) and urban expansion, respectively.&#160;In fact, in the 50&#8217;s crop plants are increasing (rapeseed and/or cabbage, rice and/or wheat, barley and Poaceae)&#160;whereas in 80&#8217;s, we record the development of several plants associated to gardens (e.g. ornamental species). Moreover, this last period is characterised by the presence of trees mostly cultivated along stream banks to protect dikes against erosion. Between the 80&#8217;s and the years 2000, the plant diversity recorded in the sediment strongly increase, which may be due to higher detrital inputs (i.e. more efficient DNA transfer). The&#160;timing in land-use changes corresponds&#160;to the main shifts in lake trophic state.

Download Full-text

Assessing potential landscape service trade-offs driven by urbanization in Switzerland

Palgrave Communications ◽

10.1057/s41599-019-0316-8 ◽

2019 ◽

Vol 5 (1) ◽

Cited By ~ 1

Author(s):

Madleina Gerecke ◽

Oskar Hagen ◽

Janine Bolliger ◽

Anna M. Hersperger ◽

Felix Kienast ◽

...

Keyword(s):

Land Use ◽

Urban Expansion ◽

Land Use Changes ◽

Landscape Management ◽

Past Century ◽

Landscape Services ◽

The Past ◽

Trade Offs ◽

Land Surfaces ◽

Landscape Information

Abstract Landscapes have been changing at an increasing pace over the past century, with countless consequences for humans and their surrounding environments. Information on past and future land use change and the resulting alteration of landscape service provisioning are valuable inputs for policy making and planning. Land use transitions in Switzerland (2009–2081) were simulated using statistical models informed by past land use changes as well as environmental and socio-economic data (1979–2009). By combining land use types with additional contextual landscape information, eight landscape services, based on both (semi-)natural and artificial landscapes, were quantified and investigated on how they would evolve under projected land use changes. Investigation of land use transitions showed region-dependent trends of urban expansion, loss of agricultural area, and forest regrowth. Landscapes cannot accommodate all services simultaneously, and this study sheds light on some competing landscape services, in particular (i) housing at the expense of agriculture and (ii) vanishing recreation opportunities around cities as city limits, and thus housing and job provisioning, expand. Model projections made it possible to pinpoint potential trade-offs between landscape services in a spatially explicit manner, thereby providing information on service provision losses and supporting planning. While future changes are presented as extrapolations of the patterns quantified in the past, policy changes might cause deviation from the projections presented here. A major challenge is to produce socio-economic and policy scenarios to inform projections that will differ from current landscape management. Given that urban sprawl is affecting many land surfaces globally, the approach used here could be generalized to other countries in similar situations.

Download Full-text

Effects of forest expansion and land abandonment on ecosystem services of alpine environments: case study in Ledro valley (Italy) for the period 1859-2011

Global NEST Journal ◽

10.30955/gnj.001770 ◽

2016 ◽

Vol 18 (4) ◽

pp. 875-884 ◽

Cited By ~ 4

Keyword(s):

Land Use ◽

Ecosystem Services ◽

Urban Expansion ◽

Land Use Changes ◽

Profit Maximization ◽

Rural Landscape ◽

European Alps ◽

Forest Expansion ◽

Economic Changes ◽

Advantages And Disadvantages

During the last century, the European Alps have faced intense socio-economic changes, which have led to respective land-use changes with immediate impact on ecosystem services (ESs). The aim of the study is to present the land-use changes and their effects on the economical contribution of ESs in the alpine environment of Ledro Valley, in Northern Italy. Data were collected through historical cartography and photographic material from 1859, 1973 and 2011. The analysis of landscape evolution highlighted the forest expansion, and partially the urban expansion, at the expense of grasslands and croplands due to a transition from a rural to a touristic and handcrafting economy. The land-use changes led to an overall reduction of the economical contribution of ESs, while further analysis on individual services identified advantages and disadvantages caused by the re-naturalization process of forest expansion. The results suggested that the profit maximization of ESs under the pressure of such land-use changes can be achieved by a) a respective profit maximization from services related to recreation activities (tourism) which have an immediate economical impact on local economies and b) the maintenance and sustainable management of the typical rural landscape and grasslands in order to preserve some of their economical benefits.

Download Full-text

An Application for Regional Coastal Erosion Processes in Urban Areas: A Case Study of the Golden Horseshoe in Canada

10.32920/14639877.v1 ◽

2021 ◽

Author(s):

Eric Vaz ◽

Lisa Bowman

Keyword(s):

Land Use ◽

North America ◽

Environmental Sustainability ◽

Urban Areas ◽

Urban Expansion ◽

Land Use Changes ◽

Urban Heat Islands ◽

Anthropogenic Activity ◽

Heat Islands ◽

Erosion Processes

Urban growth has had unprecedented consequences on environmental sustainability and anthropogenic activity. The eroding coastlines throughout the world are subject to the massive expansion of urban areas and the accountability of sustainable hinterland landscapes. The Golden Horseshoe is Canada’s fastest growing region extending from the Niagara Peninsula and one of the most active economic regions in North America. This paper adopts a combined assessment of land use change and transitions in the coastal stretches of the Greater Golden Horseshoe. Comprising the urban expansion of the region between 1990 and 2011, an integrated assessment was carried out to: (i) detect changes in coastal lines along Lake Ontario; (ii) derive land use changes along the coast through spatial accounting matrices; and (iii) integrate climate change data for a combined assessment of future erosion loci. Visible erosion was found between the decade of 1990 and 2000, while certain areas have shown coastal recession in the southern region. The maximum recession was found to be 30 m, with an increasing urban sprawl of 19.8% between 1990 and 2000. A combined temperature increase of 2 °C over the coming decades brings the increase in urban heat islands leading to the importance of combined land policies to mitigate the common problem of erosion in vulnerable urban stretches and liveability concerning spatial resilience of growing urban regions in North America.

Download Full-text

The impact of two decades of land-use changes in potential ecosystem services supply in a Portuguese municipality - Coimbra

10.5194/egusphere-egu2020-1291 ◽

2020 ◽

Author(s):

Inês Amorim Leitão ◽

Carla Sofia Santos Ferreira ◽

António José Dinis Ferreira

Keyword(s):

Land Use ◽

Ecosystem Services ◽

Urban Areas ◽

Agricultural Land ◽

Urban Expansion ◽

Land Use Changes ◽

Qualitative Evaluation ◽

Well Being ◽

Positive Potential ◽

The Impact

Land-use changes affect the properties of ecosystems, and are typically associated with decreasing ability to supply services, which in turn causes a decrease in the social well-being. Urbanization is identified as one of the main causes of ecosystem degradation, once it is considered an artificial space that replaces natural areas.This study investigates the impact of land-use changes during 20 years (1995-2015) on the potential supply of ecosystem services in Coimbra municipality, central Portugal. The assessment was based on the evaluation performed by 31 experts familiar with the study area, through questionnaires. The experts ranked the potential supply of 31 ecosystem services, grouped in regulation, provisioning and cultural services, for the several land-uses existent. Experts performed a qualitative evaluation, considering &#8216;strong adverse potential&#8217;, &#8216;weak adverse potential&#8217;, &#8216;not relevant&#8217;, &#8216;low positive potential&#8217; and &#8216;strong positive potential&#8217;. The qualitative evaluation was converted into a quantitative classification (-2, -1, 0, 1, 2). Quantitative values were then used to develop an ecosystem services quantification matrix and to map the information in the study area, using Geographic Information Systems (GIS). An urban expansion from 14% to 18% was recorded over the last 20 years. Agricultural land decreased 8% due to conversion into forest (4% increase) and urban areas (4% increase). This has led to a decrease in the supply of provision (e.g. food) and regulation services (e.g. flood regulation). In fact, over the last years, recurrent floods have been increasingly noticed in Coimbra city. On the other hand, the growth of forest areas has led to an increase in general ESs supply. The adverse impacts of urbanization were partially compensated by enlarging the benefits provided by forest areas, which is the land-use with greatest ESs potential supply. In order to support urban planning and develop sustainable cities, it is essential to quantify the potential supply of ecosystem services considering local scale and characteristics.

Download Full-text

The impact of land use change, climate change and reservoir construction on ecosystem services in a Mediterranean catchment

10.5194/egusphere-egu2020-7177 ◽

2020 ◽

Author(s):

Joris Eekhout ◽

Carolina Boix-Fayos ◽

Pedro Pérez-Cutillas ◽

Joris de Vente

Keyword(s):

Climate Change ◽

Land Use ◽

Ecosystem Services ◽

Land Use Change ◽

Urban Expansion ◽

Land Use Changes ◽

Sediment Concentration ◽

Low Flow ◽

Reservoir Construction ◽

The Impact

The Mediterranean region has been identified as one of the most affected global hot-spots for climate change. Recent climate change in the Mediterranean can be characterized by faster increasing temperatures than the global mean and significant decreases in annual precipitation. Besides, important land cover changes have occurred, such as reforestation, agricultural intensification, urban expansion and the construction of many reservoirs, mainly with the purpose to store water for irrigation. Here we study the impacts of these changes on several ecosystem services in the Segura River catchment, a typical large Mediterranean catchment where many of the before mentioned changes have occurred in the last half century. We applied a hydrological model, coupled with a soil erosion and sediment transport model, to study the impact of climate and land cover change and reservoir construction on ecosystem services for the period 1971-2010. Eight ecosystem services indicators were defined, which include runoff, plant water stress, hillslope erosion, reservoir sediment yield, sediment concentration, reservoir storage, flood discharge and low flow. To assess larger land use changes, we also applied the model for an extended period (1952-2018) to the Taibilla subcatchment, a typical Mediterranean mountainous subcatchment, which plays an important role in the provision of water within the Segura River catchment. As main results we observed that climate change in the evaluated period is characterized by a decrease in precipitation and an increase in temperature. Detected land use change over the past 50 years is typical for many Mediterranean catchments. Natural vegetation in the headwaters increased due to agricultural land abandonment. Agriculture expanded in the central part of the catchment, which most likely is related to the construction of reservoirs in the same area. The downstream part of the catchment is characterized by urban expansion. While land use changed in more than 30% of the catchment, most impact on ecosystem services can be attributed to climate change and reservoir construction. All these changes have had positive and negative impacts on ecosystem services. The positive impacts include a decrease in hillslope erosion, sediment yield, sediment concentration and flood discharge (-21%, -18%, -82% and -41%, respectively). The negative impacts include an increase in plant water stress (+5%) and a decrease in reservoir storage (-5%). The decrease in low flow caused by land use change was counteracted by an increase in low flow due to reservoir construction. The results of our study highlight how relatively small climate and land use changes compared to the changes foreseen for the coming decades, have had an important impact on ecosystem services over the past 50 years.

Download Full-text

Peri-Urbanization and Rurbanization in Leiria City: the Importance of a Planning Framework

Sustainability ◽

10.3390/su10072501 ◽

2018 ◽

Vol 10 (7) ◽

pp. 2501 ◽

Cited By ~ 6

Author(s):

José Barros ◽

Alexandre Tavares ◽

Mário Monteiro ◽

Pedro Santos

Keyword(s):

Land Use ◽

Agricultural Land ◽

Temporal Dynamics ◽

Urban Expansion ◽

Land Use Changes ◽

Planning Framework ◽

Spatial And Temporal Dynamics ◽

Central Portugal ◽

The Stability ◽

The City

The objective of this study is to evaluate the spatial and temporal dynamics of land use in the city of Leiria, which is located in central Portugal, and its relation to the planning framework. The analysis is based on land-use change recognition in the period 1958–2011, calculation of the stability grade indicator, the losses and gains between classes, and the rate of artificialization. The results show an increase of the artificial areas, namely in continuous and discontinuous urban fabric, contrasting with a continuous decrease of the agricultural land-use classes, giving origin to peri-urbanization and rurbanization processes. We can also observe a large fragmentation of the landscape in the city of Leiria, representing rapid urban expansion that is fundamentally related to the increase of residential and industrial areas, and afterwards, tertiary growth. This study also demonstrated the relation of a land-use and planning framework that works as a driving force for land-use changes. This underlines the importance of strategic regional planning instruments in managing urban sprawl and the artificialization processes of medium-sized cities.

Download Full-text