Journal
INTERNATIONAL JOURNAL OF REMOTE SENSING
Volume 35, Issue 6, Pages 2118-2135Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/01431161.2014.887235
Keywords
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Funding
- National Natural Science Foundation of China [41101363, 41201375]
- Key Knowledge Innovative Project of the Chinese Academy of Sciences [KZCX2-EW-318]
- Jiashan Science and technology projects [2011A44]
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Ecological restoration measures have been undertaken in loess hilly and gully regions since the 1970s to prevent soil loss and to improve the ecological environment in those regions. Orchard construction was the main ecological measure undertaken in the Luo-Yu-Gou watershed, and in this article we propose a coupled maximum a posteriori decision rule and Markov random field (MAP-MRF) framework for orchard identification based on landform and landscape factors. Support vector machine (SVM) classification was first performed to obtain initial classification results for the years 2003 and 2008. A series of factors including landform factor, landscape factor, and the spatial-temporal neighbourhood factor are used to obtain land-cover change information including the change in orchard class. Finally, field experiments were carried out in the case study region of the Luo-Yu-Gou watershed, and based on the experimental results, it was found that the quantity error and the allocation error of the classification results for 2008 were 0.0441 and 0.1037, respectively.
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