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Tele-connecting China's future urban growth to impacts on ecosystem services under the shared socioeconomic pathways.

Authors :
Chen, Yimin
Li, Xia
Liu, Xiaoping
Zhang, Yuangying
Huang, Min
Source :
Science of the Total Environment. Feb2019, Vol. 652, p765-779. 15p.
Publication Year :
2019

Abstract

Abstract Land change, especially urban land expansion, is increasingly triggered by remote demands for goods and services rather than by purely local drivers, exerting pressure on ecosystem services beyond local boundaries. This effect has been termed as 'tele-connections'. China has become the world's second largest economy. Understanding the tele-connections between China's future urban growth and its impacts on ecosystem services is essential to reconcile the conflict between socioeconomic developments and ecological protection. To this end, we propose to integrate an urban growth simulation model with the multi-region input-output (MRIO) model, thereby illustrating how urban land consumption in one region can cause ecosystem services' degradation in another. We explore the decline in ecosystem services due to urban land tele-connections under five shared socioeconomic pathway (SSP) scenarios. The results yield the direct loss of ecosystem services by 1.14–5.42% in food production, 0.06–0.44% in carbon sequestration, 0.09–0.59% in soil retention, 0.05–0.29% in sandstorm prevention, 0.12–0.80% in water retention and 0.19–1.04% in habitat provision. Uneven ecological consequences caused by domestic urban land displacement are witnessed not only in China's peripheral regions but also in developed regions. Shanghai, as the largest city in China, is expected to exert great impacts in terms of the quantity of ecosystem services decline and its spatial extent as well. Overall, the presented scenario simulations can support the establishment of effective compensation strategies toward balancing the responsibility and rights of stakeholders associated with ecological services protection. Graphical abstract Unlabelled Image Highlights • Urban CA and MRIO model are integrated to simulate urban land tele-connections. • Future ecosystem degradation due to urban land expansion is assessed under SSPs. • Direct loss of food production is expected to reach as much as 5%. • Substantial ecological services loss is witnessed in developed regions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00489697
Volume :
652
Database :
Academic Search Index
Journal :
Science of the Total Environment
Publication Type :
Academic Journal
Accession number :
133665886
Full Text :
https://doi.org/10.1016/j.scitotenv.2018.10.283