Potensi Cadangan dan Serapan Karbon oleh Padang Lamun di bagian Utara dan Timur Pulau Bintan

Abstract

<strong>The Carbon Stock and Potential Uptake of Seagrass Beds in the Northern and Eastern Part of Bintan Island.</strong> Seagrass is marine plant vegetation which have large potention on reducing carbondioxide emission effects in the environment. Nevertheless, the information about this potention is still limited, so the seagrass beds are still having less attention. Therefore, in April 2016 a research has done to estimate the potential of carbon stock and uptake at two location in Bintan Island, that were in the northern part (Pengudang Village) and in the eastern part (Teluk Bakau). Carbon stock estimation done by observing the seagrass density, meanwhile the carbon uptake by seagrasses was measured based on their growth/production rate. Its was known from the observation that the carbon stock potention of seagrass beds in both locations were almost at the same value, which were 133.24 gC/m<sup>2</sup> (in the northern side) and 133.71 gC/m<sup>2</sup> (in the eastern side). Nevertheless, the uptake of carbon (carbondioxide) which is used by segrass to produce leaves was higher in the eastern side at 0.50 gC/d/m<sup>2</sup> than in the northern side at 0.10 gC/d/m<sup>2</sup>. From that productivity, the carbon storage rate by seagrass beds are 0.0630 gC/d/m<sup>2</sup> in the north and 0.3375 gC/d/m<sup>2 </sup>in the east. Thus, seagrass bed area in the eastern side of Bintan Island (Teluk Bakau) was having higher carbon stock and uptake potential than in the northern side (Pengudang).