Markum, Endang Arisoesilaningsih, Didik Suprayogo, Kurniatun Hairiah
A research compared plant species diversity and C-stocks across land use systems. The characteristics of six land use systems in a total of 18 plots i.e.Primary Forest (PF), Disturbed Forest (DF), Mahogany-Woodlot (MW), Candle-nut-Agroforestry (CA), Multi strata Agroforestry (MA), and Simple-Agroforestry (SA) were analysed in this research. The species diversity level was measured using Shannon-Wiener index, while C-stocks were assessed according to the RaCSA method. Results showed that forest conversion to agricultural land uses reduced the number and density of tree species, average wood density and basal area. The PF represented the highest biodiversity index (3.46), while the other land uses were categorised as medium to low. The largest C-stock was found in PF and in MW, with the average of 550 Mgha-1, while the lowest was in SA (70 Mgha-1), with other land uses around 219 Mgha-1.The quantity of C-stocks was not related to species diversity, but closely related to wood density (R2=0.84), basal area of all sizes of tree (R2=0.86), and the basal area of trees diameter >30 cm (R2=0.71). Based on the number and species density, MA and CA resembled the characteristics of DF and PF. © 2013, Universitas Brawijaya.
University of Mataram, Jl. Majapahit 62, Mataram, Indonesia; University of Brawijaya, Jl. Veteran , Malang, 65145, East Java, Indonesia
