ABSTRACT There has been a growing interest in restoring mangroves to reduce and offset carbon (C) emissions, but it is still unknown whether restored mangroves provide ‘blue carbon’ services similar to natural ones. This study aimed to determine if 10 year-old restored mangroves in abandoned aquaculture ponds in Perancak Estuary, Bali have similar net primary productivity (NPP) and C sequestration to those of intact mangroves. Tidal re-instatement in the ponds has occurred and facilitated mangrove regeneration and sediment accumulation. We found that NPP were similar between natural and restored mangroves. Soil C sequestration in restored mangroves was similar to the natural mangroves, but the soil respiration (CO2 efflux) was lower. The source of C in mangrove sediments was mainly of mangrove origin, confirming the role of NPP in sediment C sequestration. We suggest that many components of the carbon cycle of the mangroves have been restored within 10 years since the reestablishment of the mangrove.

中文翻译：

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废弃水产养殖池塘恢复后红树林的固碳与通量

摘要 人们对恢复红树林以减少和抵消碳 (C) 排放越来越感兴趣，但恢复后的红树林是否提供类似于自然服务的“蓝碳”服务仍是未知数。本研究旨在确定巴厘岛 Perancak Estuary 废弃水产养殖池塘中恢复 10 年历史的红树林是否具有与完整红树林相似的净初级生产力 (NPP) 和碳固存。池塘中的潮汐恢复已经发生，促进了红树林的再生和沉积物的积累。我们发现天然红树林和恢复红树林的 NPP 相似。恢复红树林的土壤碳封存与天然红树林相似，但土壤呼吸（CO2 流出）较低。红树林沉积物中 C 的来源主要来源于红树林，确认 NPP 在沉积物 C 封存中的作用。我们认为，自红树林重建以来的 10 年内，红树林碳循环的许多组成部分已得到恢复。