央广网三亚12月15日消息（记者索迪）在海南省三亚市海棠湾蜈支洲岛的海洋牧场，当记者亲手将珊瑚幼苗固定在海底礁石上，才真切体会到"海底造林"的 艰辛与意义。水下的每一次操作都要对抗水流与失重感，短短几分钟，种植人员的手臂便酸胀不已。而这只是珊瑚礁生态修复工作的一小部分。 上岸后，蜈支洲岛旅游区海洋部工作人员巴金龙带记者走进监测室，电脑屏幕上跳动着密密麻麻的数据："水下摄像头和传感器能实时追踪每一片珊瑚礁的 生长状态。"他指着其中一个实时画面，画面上一头海龟正慢悠悠地从珊瑚礁旁游过，"冬天了，这些'老住户'又回来了。" 冬日的蜈支洲岛（央广网记者 陶淦 摄） 珊瑚礁被视为全球气候变化的"晴雨表"，尽管它仅占据全球海洋面积的不到1%，却孕育了十分庞大的生态系统，为约25%的海洋动植物提供了生活环境。 而在距离该海洋牧场10公里的铁炉港红树林自然保护区，却藏着另一种"海"的模样。 初见红树林，其翠绿叶片与普通植物并无二致，得名"红"树，是因其树皮富含的单宁酸在"受伤"后氧化会变为红色。 三亚市林业科学研究院技术员王炳宇指着一片叶子说："用指尖能摸到叶片表面薄薄的盐霜，因为泌盐腺能把红树林多余的无机盐排出来，这是它们 ...

Core Viewpoint - The article highlights the critical situation of the endangered red mangrove species, Rhizophora stylosa, in Hainan, China, emphasizing conservation efforts and the importance of habitat restoration for its survival [3][6][11]. Group 1: Current Status of Red Mangrove - The red mangrove, referred to as the "panda of mangroves," is critically endangered, with only 13 original specimens remaining in China as of the latest survey, down from 14 in 2016 [3][6]. - The original population in Lingshui has decreased to 4 specimens, indicating a severe decline in its natural habitat [3][6]. Group 2: Factors Affecting Survival - Human activities, climate change, and habitat degradation have significantly impacted the red mangrove's survival, with an 80% seed sterility rate reported, hindering natural regeneration [6][10]. - The remaining specimens are showing signs of aging and decline, with some trees exhibiting hollow trunks and parasitic growths that threaten their health [6][10]. Group 3: Conservation Efforts - The protection level of the red mangrove was upgraded from national second-class to first-class in August 2021, reflecting its critical status [7]. - Conservation actions include habitat restoration, removal of over 1,600 acres of aquaculture ponds, and the establishment of protective measures for ancient trees [9][11]. - Research teams have achieved significant advancements in seed germination rates, increasing from 0.3% to 17%, and have successfully cultivated over 2,000 red mangrove seedlings in the wild [11][12]. Group 4: Future Plans - Ongoing efforts aim to explore natural growth patterns without human intervention and further improve seed germination rates to ensure the species can thrive independently [12].