scholarly journals LAND-USE DYNAMICS ANALYSIS BASED ON SPATIAL INTERACTIONS MODELS AND SATELLITE IMAGES TIME-SERIES

Author(s):  
J.-F. Girres

Abstract. This article presents a research agenda in the domain of the analysis of land-use dynamics. The proposed research intends to develop spatial interactions models in order to understand and simulate land-use dynamics that operate on particular territories. The proposed approach takes into account the main principles of spatial interactions models, such as Reilly’s theory of retail gravitation, combined with land-use coverages extracted from satellite images time-series. The study of the relationship between land-use dynamics with forces of attraction estimated from spatial interactions models can help to better understand how land-use changes are distributed. The proposed approach can also be used to simulate potential evolutions of land-use around time. Finally, this article exposes the contextual limits of the proposed approach, and also presents associated opportunities of research and study areas for application.

2012 ◽  
Vol 524-527 ◽  
pp. 2688-2693
Author(s):  
Yi Xiao ◽  
Ke Yin

This paper analyzes the past 10 years, Chongqing, land use changes, And on this basis, study on the relationship between land use dynamics and economic development - ecological environmental. The results show: (1)Between 1999-2008 Chongqing sharp decline in arable land, the area net decrease in 293679.7 hm2, significant increase of construction land, the area net increase 74334.1 hm2. (2)GDP, total fixed asset investment, industrial added value and the construction area was positively correlated, and arable land change was a negative correlation. Show that the economic and social development of Chongqing mainly depends on the development of land resources. (3)In addition, returning land for farming to forestry, construction of the wetland ecosystem, making the Chongqing Municipality, although the value of ecosystem services is rising, but the overall value is still lower.


2021 ◽  
Vol 13 (6) ◽  
pp. 3473
Author(s):  
Yong Lai ◽  
Guangqing Huang ◽  
Shengzhong Chen ◽  
Shaotao Lin ◽  
Wenjun Lin ◽  
...  

Anthropogenic land-use change is one of the main drivers of global environmental change. China has been on a fast track of land-use change since the Reform and Opening-up policy in 1978. In view of the situation, this study aims to optimize land use and provide a way to effectively coordinate the development and ecological protection in China. We took East Guangdong (EGD), an underdeveloped but populous region, as a case study. We used land-use changes indexes to demonstrate the land-use dynamics in EGD from 2000 to 2020, then identified the hot spots for fast-growing areas of built-up land and simulated land use in 2030 using the future land-use simulation (FLUS) model. The results indicated that the cropland and the built-up land changed in a large proportion during the study period. Then we established the ecological security pattern (ESP) according to the minimal cumulative resistance model (MCRM) based on the natural and socioeconomic factors. Corridors, buffer zones, and the key nodes were extracted by the MCRM to maintain landscape connectivity and key ecological processes of the study area. Moreover, the study showed the way to identify the conflict zones between future built-up land expansion with the corridors and buffer zones, which will be critical areas of consideration for future land-use management. Finally, some relevant policy recommendations are proposed based on the research result.


2021 ◽  
Vol 4 ◽  
pp. 1-8
Author(s):  
Jesse Friend ◽  
Mathias Jahnke ◽  
Niels Walen ◽  
Gernot Ramminger

Abstract. Web applications which are high functioning, efficient, and meet the performance demand of the client are essential in modern cartographic workflows. With more and more complex spatial data being integrated into web applications, such as time related features, it is essential to harmonize the means of data presentation so that the end product is aligned with the needs of the end-user. In this paper we present aWeb GIS application built as a microservice which displays various timeseries visualizations to the user to streamline intuitiveness and functionality. The prototype provides a solution which could help to understand various ways in which current web and spatial analysis methods can be combined to create visualizations that add value to existing spatial data for cartographic workflows.


Oryx ◽  
1994 ◽  
Vol 28 (3) ◽  
pp. 173-182
Author(s):  
Jon C. Lovett ◽  
Erik Prins

The Kitulo Plateau of southern Tanzania is a lava plateau covering 273 sq km at an altitude of over 2500 m. The vegetation is predominately grassland with more than 350 taxa of vascular plants, of which nearly 5 per cent are of restricted distribution. Although the plateau is extensive, much of it is now cultivated. Digital analysis of satellite images showed that at least 24 per cent of the plateau was bare soil, modified grassland or cultivation between 1973 and 1989. The botanical importance of the plateau and increase in cultivation make a strong case for the establishment of a nature reserve to protect its rare and threatened plants.


Author(s):  
Edson Eyi Sano ◽  
Roberto Rosa ◽  
Carlos Alberto de Mattos Scaramuzza ◽  
Marcos Adami ◽  
Edson Luis Bolfe ◽  
...  

Abstract: The objective of this work was to analyze land use dynamics in the Brazilian Cerrado region from 2002 to 2013. This analysis was based on the interpretation of Landsat satellite images carried out by the projects Projeto de Conservação e Utilização Sustentável da Diversidade Biológica Brasileira (Probio) and TerraClass Cerrado 2013, both coordinated by Ministério do Meio Ambiente. In 2002, 38.9% of the Cerrado was covered by some type of anthropic activity. In 2013, this percentage increased to 43.4%. One of the main highlights is the emergence of a new agricultural frontier in the northern region of the study area, known as Matopiba.


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