卫明, 江洪, 陈芸芝, 李换格. 三沙湾水产养殖变化的遥感研究[J]. 海洋环境科学, 2020, 39(5): 759-767. DOI: 10.12111/j.mes.20190117
引用本文: 卫明, 江洪, 陈芸芝, 李换格. 三沙湾水产养殖变化的遥感研究[J]. 海洋环境科学, 2020, 39(5): 759-767. DOI: 10.12111/j.mes.20190117
WEI Ming, JIANG Hong, CHEN Yun-zhi, LI Huan-ge. Remote sensing study on aquaculture changes in Sansha bay[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2020, 39(5): 759-767. DOI: 10.12111/j.mes.20190117
Citation: WEI Ming, JIANG Hong, CHEN Yun-zhi, LI Huan-ge. Remote sensing study on aquaculture changes in Sansha bay[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2020, 39(5): 759-767. DOI: 10.12111/j.mes.20190117

三沙湾水产养殖变化的遥感研究

Remote sensing study on aquaculture changes in Sansha bay

  • 摘要: 研究三沙湾海域水产养殖区空间分布变化以及水产养殖面积变化对该海域水质的影响,为三沙湾的水质环境保护和水产养殖业的可持续发展提供科学依据。本文对2007-2019年三沙湾遥感影像进行网箱养殖区和藻类养殖区的分类提取和统计,分析两种水产养殖面积与分布的动态变化。利用时间序列分析模型预测2019年三沙湾水质数据,综合2007-2019年水质和水产养殖面积的动态变化情况,进行水产养殖与水质的相关性分析。结果表明,2007-2019年水产养殖面积和范围整体上呈现增长趋势,2007-2014年藻类养殖区面积快速增加,基本覆盖整个三沙湾海域,2014-2019年藻类养殖区面积保持平稳。2007-2019年网箱养殖区面积持续增加,养殖区逐渐向东安岛和东冲口附近海域扩展;2007-2018年水质和养殖面积的变化趋势基本一致,通过定性定量分析验证三沙湾水质与水产养殖面积存在一定相关性;通过2019年水质预测进一步验证了水产养殖面积和水质的相关性。

     

    Abstract: This paper studies the spatial distribution of aquaculture areas in Sansha bay and the impact of aquaculture area changes on water quality in the area, so as to provide scientific basis for water quality environmental protection and sustainable development of aquaculture industry in Sansha bay. It carries out the classified extraction and statistics of remote sensing images of Sansha bay in 2007—2019 by cage aquaculture area and algae aquaculture area, and analyzes the dynamic changes of the area and distribution of two kinds of aquaculture. Besides, it predicts the water quality data of Sansha bay in 2019 by time series analysis model, and conducts the correlation analysis between aquaculture and water quality based on the dynamic changes of water quality and aquaculture area from 2007 to 2019. The results show that the area of aquaculture appeared an overall growth trend from 2007 to 2019. Algae aquaculture area increased rapidly from 2007 to 2014, basically covering the whole Sansha bay area, while it remained stable from 2014 to 2019. And cage aquaculture area continued to increase from 2007 to 2019, which gradually expanded to the waters near Dongan island and Dongchongkou. The change trend of water quality and aquaculture area in 2007-2018 is basically the same, so qualitative and quantitative analysis has verified that there is a certain correlation between water quality and aquaculture area in Sansha bay, and it is further verified by water quality prediction in 2019.

     

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