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基于混合像元分解的 珠江口西岸养殖池塘遥感(1990—2021 年)
盛德志1,2,3; 刘欣1; 邢前国1,2,3
Source Publication海岸科学
KeywordNDWI 混合像元分解 养殖池塘
MOST Discipline Catalogue海岸带环境遥感研究
AbstractAquaculture is one of the important ways for human beings to obtain food, and aquaculture ponds are one of the main production modes of aquaculture. Based on the Landsat data of 30 m spatial resolution, the normalized water index (NDWI) was used to set the threshold, and the linear mixed pixel decomposition model was used to decompose the mixed pixel, and the water abundance was obtained. The water abundance and NDWI were statistically analyzed. The aquaculture ponds with water abundance of 0. 7 and above and the corresponding NDWI threshold were extracted. The distribution map of aquaculture ponds in typical areas on the west coast of the Pearl River Estuary from 1990 to 2021 was obtained. The results show that the aquaculture ponds in typical areas on the west coast of the Pearl River Estuary experienced a rapid increase in aquaculture area from 1990 to 2010, and a slight decrease in aquaculture area from 2010 to 2021. The research results can provide certain reference for the analysis of the development law of aquaculture ponds and the rational planning of aquaculture ponds
Other Abstract水产养殖是人类获取食品的重要途径之一,养殖池塘是水产养殖的主要生产方式之一。 基于 30 m 空间分 辨率的 Landsat 数据,利用归一化水体指数(NDWI)设定阈值,利用线性混合像元分解模型分解混合像元得到水体丰 度,并对水体丰度和 NDWI 进行统计分析。 提取 0. 7 及以上水体丰度的养殖池塘及对应 NDWI 阈值,获取 1990—2021 年珠江河口西岸典型区域内养殖池塘分布图。 结果显示,珠江口西岸典型地区养殖池塘经历两个过程:1990—2010 年,养殖面积快速增加;2010—2021 年,养殖面积稍有减少。 研究结果可为分析养殖鱼塘发展规律、合理规划养殖池 塘提供一定的参考。
WOS KeywordNDWI ; Mixed pixel decomposition ; Aquaculture ponds
Document Type期刊论文
Corresponding Author邢前国
Recommended Citation
GB/T 7714
盛德志,刘欣,邢前国. 基于混合像元分解的 珠江口西岸养殖池塘遥感(1990—2021 年)[J]. 海岸科学,2022,9(1):9-16.
APA 盛德志,刘欣,&邢前国.(2022).基于混合像元分解的 珠江口西岸养殖池塘遥感(1990—2021 年).海岸科学,9(1),9-16.
MLA 盛德志,et al."基于混合像元分解的 珠江口西岸养殖池塘遥感(1990—2021 年)".海岸科学 9.1(2022):9-16.
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