Detection of Land Use Change in Urban Agglomeration using Sentinel-1 SAR Data

2019 ◽  
Author(s):  
Hong Zhang ◽  
Han Cao ◽  
Chao Wang ◽  
Yinbo Dong ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Agglomeration ◽  
Sar Data

Impact of land use change on the water conservation service of ecosystems in the urban agglomeration of the Golden Triangle of Southern Fujian, China, in 2030

2020 ◽  
Vol 40 (2) ◽  
Author(s):  
王保盛 WANG Baosheng ◽  
陈华香 CHEN Huaxiang ◽  
董政 DONG Zheng ◽  
祝薇 ZHU Wei ◽  
邱全毅 QIU Quanyi ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Water Conservation ◽  
Urban Agglomeration ◽  
Golden Triangle

scholarly journals Land Use Change, Urban Agglomeration, and Urban Sprawl: A Sustainable Development Perspective of Makassar City, Indonesia

Land ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 556
Author(s):  
Batara Surya ◽  
Agus Salim ◽  
Hernita Hernita ◽  
Seri Suriani ◽  
Firman Menne ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Environmental Quality ◽  
Urban Sprawl ◽  
Transportation Systems ◽  
Urban Agglomeration ◽  
Activity Systems ◽  
City Area ◽  
Suburban Areas ◽  
Quality Degradation

Urbanization towards the expansion of the city area causes urban sprawl and changes in space use. Furthermore, urban agglomeration towards urban spatial integration causes a decrease in environmental quality. This study aims to analyze (1) land-use change and urban sprawl work as determinants of environmental quality degradation in suburban areas. (2) The effect of urban sprawl, urban agglomeration, land-use change, urban activity systems, and transportation systems on environmental quality degradation in suburban areas. A combination of quantitative and qualitative approaches is used sequentially in this study. Data obtained through observation, surveys, and documentation. The results showed that the expansion of the Makassar City area to the suburbs had an impact on spatial dynamics, spatial segregation, and environmental degradation. Furthermore, urban sprawl, land-use change, urban agglomeration, activity systems, and transportation systems have a positive correlation to environmental quality degradation with a determination coefficient of 85.9%. This study recommends the handling of urban sprawl, land-use change, and urban agglomeration to be considered in the formulation of development policies towards the sustainability of natural resources and the environment of Makassar City, Indonesia.

Effects of land use change on surface runoff in Beijing-Tianjin-Hebei urban agglomeration

2020 ◽  
Vol 40 (4) ◽  
Author(s):  
巨鑫慧 JU Xinhui ◽  
高肖 GAO Xiao ◽  
李伟峰 LI Weifeng ◽  
韩立建 HAN Lijian ◽  
毛劲乔 MAO Jingqiao
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Surface Runoff ◽  
Urban Agglomeration ◽  
Effects Of Land Use

scholarly journals Simulation and Analysis of the Effects of Land Use and Climate Change on Carbon Dynamics in the Wuhan City Circle Area

2021 ◽  
Vol 18 (21) ◽  
pp. 11617
Author(s):  
Chao Liu ◽  
Yuan Liang ◽  
Yajin Zhao ◽  
Shuangshuang Liu ◽  
Chunbo Huang
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Carbon Sequestration ◽  
Land Use Change ◽  
Carbon Dynamics ◽  
Urban Agglomeration ◽  
Wuhan City ◽  
Rapid Urbanization ◽  
Negative Effect ◽  
Positive Effect

In a climate and land use change context, the sequestration of atmospheric carbon in urban agglomeration is key to achieving carbon emission and neutrality targets. It is thus critical to understand how various climate and land use changes impact overall carbon sequestration in large-scale city circle areas. As the largest urban agglomeration in central China, carbon dynamics in the Wuhan City Circle area have been deeply affected by rapid urbanization and climate change in the past two decades. Here, we applied monthly climate data, spatially explicit land use maps, NDVI (Normalized Difference Vegetation Index) images and the CASA (Carnegie–Ames–Stanford Approach) model to estimate the spatial and temporal changes of carbon dynamics in the Wuhan City Circle area from 2000 to 2015. We designed six different scenarios to analyze the effects of climate change and land use change on carbon dynamics. Our simulation of NPP (Net Primary Productivity) increased from 522.63 gC × m−2 to 615.82 gC × m−2 in the Wuhan City Circle area during 2000–2015. Climate change and land use change contributed to total carbon sequestration by −73.3 × 1010 gC and 480 × 1010 gC, respectively. Both precipitation and temperature had a negative effect on carbon sequestration, while radiation had a positive effect. In addition, the positive effect on carbon sequestration from afforestation was almost equal to the negative effect from urbanization between 2000 and 2015. Importantly, these findings highlight the possibility of carrying out both rapid urbanization and ecological restoration simultaneously.

Assessment of land-use change in coastal areas through geographical information systems

2020 ◽  
Vol 13 (10) ◽  
Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Geographical Information Systems ◽  
Design Methodology ◽  
Scientific Information ◽  
Coastal Ecosystems ◽  
Coastal Areas ◽  
Geographical Information ◽  
Coastal Zones ◽  
Computer Based

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.

Monitoring land use change in the Lake Taupo catchment between 1975, 1990 and 2002 using satellite remote sensing data

2007 ◽  
pp. 17-22
Author(s):  
H. Lilienthal ◽  
A. Brauer ◽  
K. Betteridge ◽  
E. Schnug
Keyword(s):  
Remote Sensing ◽  
Water Quality ◽  
Land Use ◽  
Land Use Change ◽  
Satellite Remote Sensing ◽  
Remote Sensing Data ◽  
Native Vegetation ◽  
Lake Water Quality ◽  
Livestock Farming ◽  
Slow Decline

Conversion of native vegetation into farmed grassland in the Lake Taupo catchment commenced in the late 1950s. The lake's iconic value is being threatened by the slow decline in lake water quality that has become apparent since the 1970s. Keywords: satellite remote sensing, nitrate leaching, land use change, livestock farming, land management

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