Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities

Global land acquisitions, often dubbed ‘land grabbing’ are increasingly becoming drivers of land change. We use the tools of network science to describe the connectivity of the global acquisition system. We find that 126 countries participate in this form of global land trade. Importers are concentr...

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Main Authors: J W Seaquist, Emma Li Johansson, Kimberly A Nicholas
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/9/11/114006
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author J W Seaquist
Emma Li Johansson
Kimberly A Nicholas
author_facet J W Seaquist
Emma Li Johansson
Kimberly A Nicholas
author_sort J W Seaquist
collection DOAJ
description Global land acquisitions, often dubbed ‘land grabbing’ are increasingly becoming drivers of land change. We use the tools of network science to describe the connectivity of the global acquisition system. We find that 126 countries participate in this form of global land trade. Importers are concentrated in the Global North, the emerging economies of Asia, and the Middle East, while exporters are confined to the Global South and Eastern Europe. A small handful of countries account for the majority of land acquisitions (particularly China, the UK, and the US), the cumulative distribution of which is best described by a power law. We also find that countries with many land trading partners play a disproportionately central role in providing connectivity across the network with the shortest trading path between any two countries traversing either China, the US, or the UK over a third of the time. The land acquisition network is characterized by very few trading cliques and therefore characterized by a low degree of preferential trading or regionalization. We also show that countries with many export partners trade land with countries with few import partners, and vice versa, meaning that less developed countries have a large array of export partnerships with developed countries, but very few import partnerships (dissassortative relationship). Finally, we find that the structure of the network is potentially prone to propagating crises (e.g., if importing countries become dependent on crops exported from their land trading partners). This network analysis approach can be used to quantitatively analyze and understand telecoupled systems as well as to anticipate and diagnose the potential effects of telecoupling.
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spelling doaj.art-9d02419c94cc415796769631dd90ea842023-08-09T14:43:21ZengIOP PublishingEnvironmental Research Letters1748-93262014-01-0191111400610.1088/1748-9326/9/11/114006Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilitiesJ W Seaquist0Emma Li Johansson1Kimberly A Nicholas2Department of Physical Geography and Ecosystem Science, Lund University , Sölvegatan 12, SE-223 62, Lund, SwedenDepartment of Physical Geography and Ecosystem Science, Lund University , Sölvegatan 12, SE-223 62, Lund, SwedenLund University Centre for Sustainability Studies, Lund University , PO Box 170, SE-221 00, Lund, SwedenGlobal land acquisitions, often dubbed ‘land grabbing’ are increasingly becoming drivers of land change. We use the tools of network science to describe the connectivity of the global acquisition system. We find that 126 countries participate in this form of global land trade. Importers are concentrated in the Global North, the emerging economies of Asia, and the Middle East, while exporters are confined to the Global South and Eastern Europe. A small handful of countries account for the majority of land acquisitions (particularly China, the UK, and the US), the cumulative distribution of which is best described by a power law. We also find that countries with many land trading partners play a disproportionately central role in providing connectivity across the network with the shortest trading path between any two countries traversing either China, the US, or the UK over a third of the time. The land acquisition network is characterized by very few trading cliques and therefore characterized by a low degree of preferential trading or regionalization. We also show that countries with many export partners trade land with countries with few import partners, and vice versa, meaning that less developed countries have a large array of export partnerships with developed countries, but very few import partnerships (dissassortative relationship). Finally, we find that the structure of the network is potentially prone to propagating crises (e.g., if importing countries become dependent on crops exported from their land trading partners). This network analysis approach can be used to quantitatively analyze and understand telecoupled systems as well as to anticipate and diagnose the potential effects of telecoupling.https://doi.org/10.1088/1748-9326/9/11/114006land grabbingtelecouplingcomplex networkglobalizationvulnerabilityland systems science
spellingShingle J W Seaquist
Emma Li Johansson
Kimberly A Nicholas
Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities
Environmental Research Letters
land grabbing
telecoupling
complex network
globalization
vulnerability
land systems science
title Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities
title_full Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities
title_fullStr Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities
title_full_unstemmed Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities
title_short Architecture of the global land acquisition system: applying the tools of network science to identify key vulnerabilities
title_sort architecture of the global land acquisition system applying the tools of network science to identify key vulnerabilities
topic land grabbing
telecoupling
complex network
globalization
vulnerability
land systems science
url https://doi.org/10.1088/1748-9326/9/11/114006
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