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Remote sensing of bidecadal urbanization and its impact on ecosystem service in the yangtze river delta
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Geoinformatics.
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Geoinformatics.
2013 (English)In: Proceedings of Dragon 2 Final Results & Dragon 3 Kick-Off Symposium: 25-29 June 2012, Beijing, P.R. China, ESA Communications , 2013, 1-8 p.Conference paper (Refereed)
Abstract [en]

The degree of urbanization and resulting effects on Ecosystem Services is investigated in the Yangtze River Delta in China within a 20 year time frame from 1990 to 2010. A Random forest classifier is used to classify the Landsat mosaic from 1990 and the HJ-1A/B mosaic dating from 2010. Urban Land Index (UI) and Urban Expansion Index (UX) are used to represent the intensity and rapidity of urbanization. Post-Classification Change Detection is then performed and Ecosystem Service value losses for the land-cover classes water, wetland, forest and cropland that transitioned to urban areas are calculated according to a valuation scheme adapted to the Chinese market. The results showed that Yangtze River Delta experienced significant urbanization during 1990 to 2010. Urban areas increased alongside a major decrease in cropland resulting in a substantial loss of 4.2 billion CNY in Ecosystem Services.

Place, publisher, year, edition, pages
ESA Communications , 2013. 1-8 p.
, European Space Agency, (Special Publication) ESA SP, ISSN 0379-6566 ; 704 SP
Keyword [en]
Change detection, Chinese markets, Ecosystem service values, Ecosystem services, Post classification, Random forest classifier, Urban expansion, Yangtze river delta
National Category
Other Environmental Engineering
URN: urn:nbn:se:kth:diva-143578ScopusID: 2-s2.0-84892738062ISBN: 9789290922681OAI: diva2:708092
Dragon 2 Final Results and Dragon 3 Kick-Off Symposium; Beijing; China; 25 June 2012 through 29 June 2012

QC 20140326

Available from: 2014-03-26 Created: 2014-03-25 Last updated: 2014-03-26Bibliographically approved

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Haas, JanBan, Yifang
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