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[期刊论文]

Extraction of Aquaculture Pond Region in Coastal Waters of Southeast China Based on Spectral Features and Spatial Convolution

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author:

Wang, L. (Wang, L..) [1] | Li, Y. (Li, Y..) [2] | Zhang, D. (Zhang, D..) [3] | Unfold

Indexed by:

Scopus

Abstract:

To control the negative effects resulting from the disorderly development of aquaculture ponds and promote the development of the aquaculture industry, rapid and accurate identification and extraction techniques are essential. An aquaculture pond is a special net-like water body divided by complex roads and dikes. Simple spectral features or spatial texture features are not sufficient to accurately extract it, and the mixed feature rule set is more demanding on computer performance. Supported by the GEE platform, and using the Landsat satellite data set and corresponding DEM combined with field survey data, we constructed a decision-making model for the extraction of aquaculture ponds in the coastal waters, and applied this method to the coastal waters of Southeast China. This method combined the image spectral information, spatial features, and morphological operations. The results showed that the total accuracy of this method was 93%, and the Kappa coefficient was 0.86. The overlapping proportions of results between the automated extraction and visual interpretation for test areas were all more than 90%, and the average was 92.5%, which reflected the high precision and reliability of this extraction method. Furthermore, in 2020, the total area of coastal aquaculture ponds in the study area was 6348.51 km2, which was distributed primarily in the cities of Guangdong and Jiangsu. Kernel density analysis suggested that aquaculture ponds in Guangdong and Jiangsu had the highest degree of concentration, which means that they face higher regulatory pressure in the management of aquaculture ponds than other provinces. Therefore, this method can be used to extract aquaculture ponds in coastal waters of the world, and holds great significance to promote the orderly management and scientific development of fishery aquaculture. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keyword:

aquaculture pond area; GEE platform; spatial convolution; threshold segmentation

Community:

  • [ 1 ] [Wang, L.]Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Prevention, Fuzhou, 350108, China
  • [ 2 ] [Wang, L.]Academy of Geography and Ecological Environment, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Wang, L.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Li, Y.]Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Prevention, Fuzhou, 350108, China
  • [ 5 ] [Li, Y.]Academy of Geography and Ecological Environment, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Li, Y.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Zhang, D.]Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Prevention, Fuzhou, 350108, China
  • [ 8 ] [Zhang, D.]Academy of Geography and Ecological Environment, Fuzhou University, Fuzhou, 350108, China
  • [ 9 ] [Zhang, D.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 10 ] [Liu, Z.]Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Prevention, Fuzhou, 350108, China
  • [ 11 ] [Liu, Z.]Academy of Geography and Ecological Environment, Fuzhou University, Fuzhou, 350108, China
  • [ 12 ] [Liu, Z.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China

Reprint 's Address:

  • [Liu, Z.]Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster PreventionChina

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Source :

Water (Switzerland)

ISSN: 2073-4441

Year: 2022

Issue: 13

Volume: 14

2 . 5 2 4

JCR@2018

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 3

30 Days PV: 0

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