近5年来，全省累计新增红树林近2万亩为海岸线筑起防护绿墙

Core Insights - The article highlights the significant efforts made in Hainan province to protect and restore mangrove forests, with a total of nearly 20,000 acres of new mangroves added over the past five years [1][2]. Group 1: Mangrove Restoration Efforts - The Dongzhaigang National Nature Reserve has implemented comprehensive measures such as returning aquaculture ponds to forests, resulting in the restoration of 4,523 acres of mangroves and the addition of 4,731 acres, expanding the total mangrove area to 26,565 acres [2]. - Various coastal cities in Hainan, including Haikou, Dongfang, Lingshui, Danzhou, and Changjiang, have conducted special actions for mangrove protection and restoration [2]. Group 2: Biodiversity and Species Monitoring - In the Dongfang Black-faced Spoonbill Provincial Nature Reserve, six black-faced spoonbills, a national first-class protected species, have been fitted with trackers to monitor their wintering activities and migration routes [2]. - The reserve has cleared 850 acres of aquaculture ponds and replanted native mangrove species, leading to a steady increase in bird diversity, with projections of bird populations reaching approximately 5,000, 6,000, and 7,000 from 2023 to 2025 [2]. Group 3: Genetic Resource Conservation - Hainan's forestry department has strengthened the protection and utilization of mangrove genetic resources, with a new 288-acre mangrove genetic resource bank established, preserving 75 samples of 14 mangrove species [3]. - The total area of mangroves in Hainan is reported to be 7,638.73 hectares, with 44 species of mangrove plants recorded, contributing to the richness of local biodiversity [3]. Group 4: Future Plans and Sustainability - The "Hainan Province Mangrove Resource Protection Special Plan (2024-2035)" outlines five key projects aimed at sustainable development of mangrove resources, with a target to stabilize the mangrove area at over 7,948 hectares by 2035 [3].