International journal of applied earth observation and geoinformation2019，Vol.8212.DOI:10.1016/j.jag.2019.101902

Rapid expansion of coastal aquaculture ponds in China from Landsat observations during 1984-2016

Xiao, Xiangming Doughty, Russell B. Liu, Mingyue Jia, Mingming Mao, Dehua Song, Kaishan Zhang, Bai Chen, Lin Xi, Yanbiao Ren, Chunying Wang, Zongming Zhang, Yuanzhi
International journal of applied earth observation and geoinformation2019，Vol.8212.DOI:10.1016/j.jag.2019.101902
✕
  • NSTL
  • Elsevier

Rapid expansion of coastal aquaculture ponds in China from Landsat observations during 1984-2016

Xiao, Xiangming 1Doughty, Russell B. 1Liu, Mingyue 2Jia, Mingming 3Mao, Dehua 3Song, Kaishan 3Zhang, Bai 3Chen, Lin 3Xi, Yanbiao 3Ren, Chunying 3Wang, Zongming 3Zhang, Yuanzhi4
扫码查看

作者信息

  • 1. Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
  • 2. North China Univ Sci & Technol, Coll Min Engn, Tangshan 063210, Peoples R China
  • 3. Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China
  • 4. Chinese Univ Hong Kong, Ctr Housing Innovat, Shatin, Hong Kong, Peoples R China
  • 折叠

Abstract

Aquaculture is one of the fastest growing animal food production sectors mainly developed in fertile coastal areas. Monitoring and mapping of aquaculture ponds are of utmost importance for the sustainable management of coastal ecosystems. In this study, an integrated updating and object-based classification approach was developed to generate maps of coastal aquaculture ponds in China from 1984 to 2016 at 30-m spatial resolution. The current extent and change of coastal aquaculture ponds in China were analyzed over the course of 32 years. In addition, spatial-temporal dynamics of coastal aquaculture ponds were examined by buffer and overlay analyses. The results showed that the total area of coastal aquaculture ponds in China expanded by 10,463 km(2), with the largest gain occurring from 1990 to 2000 (4,207 km(2)). The coastal provinces of Guangdong, Shandong, Jiangsu, Liaoning, and Hebei had significant increases of aquaculture ponds areas, accounting for 83% of totally expanded ponds in the coastal zone of China. Rapid expansion of coastal aquaculture ponds was observed in the 0-10 km inshore buffer and the loss of wetlands and arable land contributed more than 50% to the expansion. Socio-economic factors helped drive the continual increase of coastal aquaculture ponds in China. Scientific environmental regulations and planning and management strategies at the national and international policy levels should be enhanced to consider the ecological impacts of aquaculture expansion.

Key words

Aquaculture ponds/Updating and object-based classification/Remote sensing/Spatiotemporal dynamics/Coastal zone of China

引用本文复制引用

出版年

2019
International journal of applied earth observation and geoinformation

International journal of applied earth observation and geoinformation

SCI
ISSN：0303-2434
被引量63
参考文献量58
段落导航相关论文