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“智斗”浒苔绿潮——北海局构建海洋灾害防控新体系纪实
Zhong Guo Zi Ran Zi Yuan Bao· 2025-09-22 09:43
绿潮是海洋中一些大型绿藻在一定环境条件下暴发性增殖或聚集达到某一水平,导致生态环境异常的一种现象。自上世纪六七十年代以来,绿潮在许多 国家频繁暴发,已演变为全球性的海洋生态灾害。 "空天海岸"高效协同 精准掌握浒苔动态分布,是防控绿潮的关键第一步。针对传统浒苔绿潮监测技术手段单一、精度不足、时效性差的痛点,项目团队综合采用卫星遥感、 无人机和人工智能等技术手段升级完善了"空-天-海-岸"立体监测体系。 团队研发了无人机监测藻情智能解译算法和图传数传一体技术,实现对浒苔绿潮分布、面积等关键信息的精准解析和实时回传,解决无人机监测过程中 藻情解译效率低、回传时效性差的难题。同时,利用准同步卫星和无人机开展浒苔绿潮覆盖面积精细化解译,建立基于多源遥感的混合像元分解技术,更真 实还原海上浒苔绿潮实际分布,显著提升浒苔绿潮覆盖面积解译精度。此外,无人机多光谱影像生物量反演模型的研发,使得大范围浒苔绿潮生物量的高效 监测成为可能。 为快速准确鉴定大型海藻种类,项目还建立了北海区大型海藻标本库,筛选出大型海藻DNA条形码,完善了分子鉴定平台。这些技术的综合应用,如 同为海上藻情处置装上了"千里眼"。 "向阳红51"船海上巡 ...
海洋经济:下一个10万亿有多远
Ke Ji Ri Bao· 2025-07-14 23:34
Core Viewpoint - The marine economy in China is entering a transformative era, with significant growth potential and strategic direction emphasized by government initiatives aimed at high-quality development and technological innovation [1][5][7]. Group 1: Economic Growth and Development - China's marine production value is projected to exceed 10 trillion yuan in 2024, marking a significant milestone in the marine economy [1]. - The marine economy is supported by various regions, with Guangdong leading as the first province to surpass 2 trillion yuan in marine production value [4]. - The marine new industries in Guangdong have seen an average annual growth rate of 16.8% over the past five years, driven by substantial investment in innovation [5]. Group 2: Technological Innovation - Technological innovation is identified as a key driver for transforming traditional marine industries and fostering new emerging sectors [2][6]. - The development of intelligent aquaculture technologies is shifting the focus from traditional nearshore fishing to large-scale deep-sea farming [6]. - The shipbuilding industry has experienced a surge in high-end orders, with a 57.1% increase in orders for high-end vessels, indicating a shift towards advanced manufacturing capabilities [3]. Group 3: Policy and Strategic Direction - The Central Financial Committee's recent meeting highlighted the need to enhance marine technology innovation capabilities and develop strategic marine technology enterprises [7]. - The government is focusing on creating a robust innovation ecosystem that includes both large enterprises and specialized small and medium-sized enterprises [7]. - There is a concerted effort across coastal regions to develop unique marine economic strengths and adapt to local conditions for sustainable growth [5][8]. Group 4: Challenges and Opportunities - Despite advancements, there are still significant gaps in marine technology, particularly in deep-sea exploration and high-end marine equipment, which remain reliant on imports [8]. - Regions like Liaoning and Shenzhen are prioritizing marine economic development and increasing R&D investment to address these technological shortfalls [8]. - The overall shift towards a more innovative and sustainable marine economy is seen as a critical opportunity for growth and development in the coming years [5][6].