Map** the Spatiotemporal Dynamics of Cropland Abandonment and Recultivation across the Yangtze River Basin
Abstract
:1. Introduction
- (1)
- We used a strategy to quickly generate classifier sample data based on existing land use products, and created annual land cover maps suitable for a large scale area.
- (2)
- We mapped the extent and timing of cropland abandonment and recultivation based on continuous time series land cover data.
- (3)
- We analyzed the cropland abandonment intensity (i.e., frequency and duration) and the spatial and temporal interaction with recultivation.
2. Materials and Methods
2.1. Study Areas
2.2. Definition of Cropland Abandonment and Recultivation
2.3. Data Preprocessing for Classification
2.4. Annual Land Cover Map** and Accuracy Assessment
Year | GlobeLand30 | CNLUCC | MCD12Q1 | ESA-CCI | GlobCover |
---|---|---|---|---|---|
2000 | 2000 | 2000 | 2001 | 2000 | |
2001 | 2000 | 2000 | 2001 | 2001 | |
2002 | 2000 | 2000 | 2002 | 2002 | |
2003 | 2005 | 2003 | 2003 | 2005 | |
2004 | 2005 | 2004 | 2004 | 2005 | |
2005 | 2005 | 2005 | 2005 | 2005 | |
2006 | 2005 | 2006 | 2006 | 2005 | |
2007 | 2005 | 2007 | 2007 | 2005 | |
2008 | 2010 | 2010 | 2008 | 2008 | 2009 |
2009 | 2010 | 2010 | 2009 | 2009 | 2009 |
2010 | 2010 | 2010 | 2010 | 2010 | |
2011 | 2010 | 2010 | 2011 | 2011 | |
2012 | 2010 | 2010 | 2012 | 2012 | |
2013 | 2015 | 2013 | 2013 | ||
2014 | 2015 | 2014 | 2014 | ||
2015 | 2015 | 2015 | 2015 | ||
2016 | 2015 | 2016 | 2015 | ||
2017 | 2018 | 2017 | 2015 | ||
2018 | 2020 | 2018 | 2018 | ||
2019 | 2020 | 2018 | 2019 | ||
2020 | 2020 | 2020 | 2019 |
2.5. Annual Cropland Abandonment and Recultivation Map**
3. Results
3.1. Land Cover Maps and Accuracy
3.2. Spatiotemporal Analysis of Cropland Abandonment
3.3. Spatiotemporal Analysis of Recultivation
4. Discussion
4.1. Comparison with Other Studies
4.2. Cropland Abandonment and Recultivation Drivers
4.3. Policy Implications
4.4. Limitations and Future Perspectives
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Long, Y.; Sun, J.; Wellens, J.; Colinet, G.; Wu, W.; Meersmans, J. Map** the Spatiotemporal Dynamics of Cropland Abandonment and Recultivation across the Yangtze River Basin. Remote Sens. 2024, 16, 1052. https://doi.org/10.3390/rs16061052
Long Y, Sun J, Wellens J, Colinet G, Wu W, Meersmans J. Map** the Spatiotemporal Dynamics of Cropland Abandonment and Recultivation across the Yangtze River Basin. Remote Sensing. 2024; 16(6):1052. https://doi.org/10.3390/rs16061052
Chicago/Turabian StyleLong, Yuqiao, **g Sun, Joost Wellens, Gilles Colinet, Wenbin Wu, and Jeroen Meersmans. 2024. "Map** the Spatiotemporal Dynamics of Cropland Abandonment and Recultivation across the Yangtze River Basin" Remote Sensing 16, no. 6: 1052. https://doi.org/10.3390/rs16061052