Carbon sequestration and growth of Anthocephalus cadamba plantation in North Kalimantan, Indonesia

Abstract

Sarjono A, Lahjie AM, Simarangkir BDAS, Kristiningrum R, Ruslim Y. 2017. Carbon sequestration and growth of Anthocephalus cadamba plantation in North Kalimantan, Indonesia. Biodiversitas 18: 1385-1393. Forest plantation of Jabon (Anthocephalus cadamba) plays many important roles for the primary source of timber production and also the carbon absorption for environmental amelioration. The growth of A. cadamba trees was measured using the formulas of MAI (Mean Annual Increment) and PAI (Periodic Annual Increment) as the basis of the increment measurement, while the analysis of biomass and carbon with simple linear regression (y = a + bx) was used, with the coefficient of R2 = 0.90. The annual increment of A. cadamba trees reached its maximum point or the intersection between MAI and PAI at the age of 8 years, showing the maximum production of A. cadamba trees. Forest plantation of A. cadamba produced biomass and carbon sequestration of 81.90 ton ha-1 and 39.31 ton ha-1, respectively at the age of 8 years. However, the amount of biomass and carbon in another plot of A. cadamba trees was 96.85 ton ha-1 and 46.49 ton ha-1, respectively. While the values of the third plot were 116.84 ton ha-1 and 56.08 ton ha-1, respectively. The correlation between the diameter and biomass production and the correlation between the age of stands and carbon production were very strong with R2 value was higher than 0.90. This indicated that Jabon (Anthocephalus cadamba) plantation had important roles in carbon sequestration and biomass production.

Performance of seedling and mixed-species planting test of three species of Rubiaceae treated by different seedling media and mycorrhizae application

“…In this study, red jabon had a lower initial growth so it was suspected that it could not compete with white jabon and gempol in obtaining plant space, especially light needed for pioneer species. In this study, the average diameter growth of white jabon, gempol, and red jabon at 2 years old were 7.38 cm (3.69 cm year -1 ), 4.84 cm (2.84 cm year -1 ), and 3.81 cm (1.91 cm year -1 ), while the results of other studies showed that the annual diameter increment was quite diverse, such as for white jabon in the range of 2.03 -5.25 cm year -1 [10,[24][25][26], gempol in the range of 1.83-2.84 cm year -1 [4], and red jabon in the range of 1.46-5.62 cm year -1 [27][28][29]. This difference may depend on the condition of soil fertility and sylvicultural practices and the level of soil fertility in Parungpanjang was relatively low.…”

“…This difference may depend on the condition of soil fertility and sylvicultural practices and the level of soil fertility in Parungpanjang was relatively low. Several studies have also shown that jabon growth was very poor on soils with low fertility levels [12,26] so it was not suitable for rehabilitation of critical lands [10].…”

“…However, the investigation of the effect of seedling treatments (growing media and AMF inoculation) in the nursery and its correlation with the field performance after out-planting, especially for tropical tree species, is still limited [9]. A study on the effectiveness of AMF to increase the success of planting white jabon, red jabon, and gempol is very necessary considering that these species are mostly planted in dry and marginal land [10][11][12], which is different from their natural habitat, i.e., moist soils. Some studies also revealed that these species are quite sensitive to drought stress [6,13] and not suitable for critical land rehabilitation [10].…”

“…A study on the effectiveness of AMF to increase the success of planting white jabon, red jabon, and gempol is very necessary considering that these species are mostly planted in dry and marginal land [10][11][12], which is different from their natural habitat, i.e., moist soils. Some studies also revealed that these species are quite sensitive to drought stress [6,13] and not suitable for critical land rehabilitation [10]. AMF helps plants to increase their nutrient uptake capacity and their resistance to drought and other abiotic stresses [14,15].…”

Estimation of Above Ground Biomass and carbon stocks of Tectona grandis and Gmelina arborea stands in Gorontalo Province, Indonesia

“…Therefore, the amount of above-ground biomass can be used as a basis for determining the amount of carbon stock or the amount of CO2 absorbed and stored by the stands (Uthbah et al 2017). According to Sardjono et al (2017), biomass has a very strong relationship with photosynthesis process. Biomass increases because plants absorb CO2 from the air and convert it into organic compounds through the process of photosynthesis.…”