Correlation of Carbon Stock and Biodiversity Index at the Small Scale Agroforestry Landscape in Ciliwung Watershed

Pekarangan is part of a complex of small-scale agroforestry landscape. Pekarangan have 3 functions i.e. ecological, economic, and social. ecological function, for providing landscape services such as carbon stock and biodiversity; economic function, can supplies foods and nutrition; and social function, for building low carbon communities and increasing the environmental awareness. Therefore, this research aims to correlate carbon stocks and biodiversity index of Pekarangan in Ciliwung Watershed. This study has measured 48 samples which were divided in three stream, namely upstream, midstream, and downstream. The samples were divided into four groups, G1 (pekarangan size less than 120 m² and doesn't have other agricultural land (no other agricultural land - OAL), G2 (<120 m² with OAL < 1000 m²), G3 (120-400 m² with no OAL) and G4 (120-400 m² with OAL < 1000 m²). The results show that correlation between carbon stock and biodiversity index value is R² = 0.05. The results showed no correlation between carbon stocks and biodiversity index could be due to the amount of Pekarangan owners who prefer potted plants than plant a tree, so that the carbon sequestered in the Pekarangan only slightly.