Assessment of water related ecological security under changing environment in China

Hao, X; Zhao, C; Liu, C; Yu, J; Mitrovic, SM

Assessment of water related ecological security under changing environment in China

Hao, X Zhao, C Liu, C Yu, J Mitrovic, SM

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Publication Type:: Journal Article
Citation:: Environmental Engineering and Management Journal, 2018, 17 (6), pp. 1399 - 1410
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Hao, X	en_US
dc.contributor.author	Zhao, C	en_US
dc.contributor.author	Liu, C	en_US
dc.contributor.author	Yu, J	en_US
dc.contributor.author	Mitrovic, SM https://orcid.org/0000-0002-5528-2215	en_US
dc.date.issued	2018-01-01	en_US
dc.identifier.citation	Environmental Engineering and Management Journal, 2018, 17 (6), pp. 1399 - 1410	en_US
dc.identifier.issn	1582-9596	en_US
dc.identifier.uri	http://hdl.handle.net/10453/128238
dc.description.abstract	© 2018, Gheorghe Asachi Technical University of Iasi, Romania. All rights reserved. Over the last few decades intensive human activities and climate changing have stressed ecological systems impeding sustainable development of the social economy in many regions in China. The importance of ecological security has gained greater prominence. Sustaining or restoring natural functions of water ecosystems is also crucial for human welfare. To assess water related ecological security (WES), this paper constructed a framework based on the Pressure-State-Response (PSR) model with indicators in terms of society, economy, water resources, water environment and ecology. The Entropy Method was used to determine the weighting of each indicator. Spatial distribution and temporal trend of WES was then analyzed in China. With weighting analyses, dominant factors threatening eco-security were identified. Results show that the basin of Inland Rivers in the Northwest (IRNW) and the basin of Rivers in the Southwest (RSW) are the most ecologically threatened regions in China. In the IRNW basin, the WES is mostly affected by the factors of water consumption ratio and soil erosion area ratio, while in the RSW basin it was influenced by the natural population increase ratio and the investment percent of GDP in environmental pollution treatment. Most WES indexes (WESIs) in the ten basins show an increasing trend, except for that in the basin of Rivers in Southeast (RSE) which has a decreasing trend due to the reduced investment ratio of environmental pollution treatment. These results will provide valuable information to water resources management.	en_US
dc.relation.ispartof	Environmental Engineering and Management Journal	en_US
dc.title	Assessment of water related ecological security under changing environment in China	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	17	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	15 Commerce, Management, Tourism and Services	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	17	en_US

Abstract:

© 2018, Gheorghe Asachi Technical University of Iasi, Romania. All rights reserved. Over the last few decades intensive human activities and climate changing have stressed ecological systems impeding sustainable development of the social economy in many regions in China. The importance of ecological security has gained greater prominence. Sustaining or restoring natural functions of water ecosystems is also crucial for human welfare. To assess water related ecological security (WES), this paper constructed a framework based on the Pressure-State-Response (PSR) model with indicators in terms of society, economy, water resources, water environment and ecology. The Entropy Method was used to determine the weighting of each indicator. Spatial distribution and temporal trend of WES was then analyzed in China. With weighting analyses, dominant factors threatening eco-security were identified. Results show that the basin of Inland Rivers in the Northwest (IRNW) and the basin of Rivers in the Southwest (RSW) are the most ecologically threatened regions in China. In the IRNW basin, the WES is mostly affected by the factors of water consumption ratio and soil erosion area ratio, while in the RSW basin it was influenced by the natural population increase ratio and the investment percent of GDP in environmental pollution treatment. Most WES indexes (WESIs) in the ten basins show an increasing trend, except for that in the basin of Rivers in Southeast (RSE) which has a decreasing trend due to the reduced investment ratio of environmental pollution treatment. These results will provide valuable information to water resources management.

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http://hdl.handle.net/10453/128238