Remote sensing monitoring and spatial-temporal change analysis of aquaculture ponds in coastal area of Hainan Island

doi:10.3969/j.issn.1001-909X.2020.01.007

Abstract

Abstract: The object-oriented classification method was utilized to interpret 4 time-series Landsat data of 1990,2000,2010 and 2015 to identify the aquaculture ponds in coastal area of Hainan Island. Based on the landscape indexes and centroid migrate model,the temporal and spatial characteristics of aquaculture ponds and its impact on the coastal ecological environment were explored. The results showed that the area of aquaculture ponds of Hainan Island continued to grow from 1990 to 2015 and the regional differences were obvious. The distribution position of aquaculture area moved to the northeast of Hainan Island and the landscape indexes showed that the landscape pattern of the aquaculture area tended to be fragmention. The expansion of aquaculture ponds invaded natural wetlands such as mangroves, causing damage to the coastal ecological environment. Therefore, reasonable planning and scientific upgrading are needed for the sustainable development of aquaculture.

Key words: aquaculture ponds, landscape pattern, ecological impact, Landsat

CLC Number:

S951.4

YUAN Xin, ZHANG Li, SONG Xixi, GU Yu. Remote sensing monitoring and spatial-temporal change analysis of aquaculture ponds in coastal area of Hainan Island[J]. Journal of Marine Sciences, 2020, 38(1): 59-67.

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