海洋绿色发展探新路

Core Viewpoint - The articles highlight the importance of utilizing saline-alkali land for sustainable agricultural practices and the protection of marine ecosystems in China, emphasizing the potential of sea cucumbers and mangroves in enhancing ecological balance and economic development [1][2][3][5]. Group 1: Saline-Alkali Land Utilization - China has approximately 1.5 billion acres of saline-alkali land, with plans to develop suitable areas into arable land as outlined in the 2022 Central Document No. 1 [2]. - In Hainan Province, the cultivation of sea cucumbers in saline-alkali areas is being promoted, which does not compete with traditional agriculture for resources [1][2]. - The average salt content in seawater is 3.5%, while sea cucumbers can tolerate salinity levels up to 6.5%, making them suitable for cultivation in saline-alkali soils [1]. Group 2: Marine Ecosystem Protection - The East Zhuhai Port mangrove reserve is the largest and most biodiverse in China, playing a crucial role in coastal ecosystem health [3][4]. - The area has seen significant improvements in environmental conditions and increased mangrove coverage due to protective measures implemented since 2014 [3][4]. - Despite progress, challenges such as habitat degradation and biodiversity loss remain, necessitating ongoing efforts for ecological restoration and protection [4][5]. Group 3: Marine Ecological Monitoring - China's marine ecological status is generally stable, with no significant changes in key water quality indicators, although threats from climate change persist [5][6]. - The Ministry of Natural Resources has developed a comprehensive monitoring network to assess marine ecosystems, focusing on areas like coral reefs and seagrass beds [6]. - There is a need for improved spatial planning and management of coastal and nearshore areas to enhance marine ecological protection [6][7].