Universal Journal of Agricultural Research Vol. 10(4), pp. 305 - 330
DOI: 10.13189/ujar.2022.100401
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The Aboveground Biomass Allometry and Carbon Stocks of Serial Age Planted Rhizophora apiculata in Northern Sumatra, Indonesia

Bambang Suprayogi ¹, Joko Purbopuspito ², Meilinda S. Harefa ^3,*, Grace Y. Panjaitan ¹, Zulkifli Nasution ^4
1 Yagasu Aceh Foundation, Medan, Indonesia
² Department of Soil, Faculty of Agriculture, Sam Ratulangi University, Menado, Indonesia
³ Department of Geography, Faculty of Social Sciences, Universitas Negeri Medan, Medan, Indonesia
⁴ Department of Biology, Universitas Sumatera Utara, Medan, Indonesia

ABSTRACT

The biomass and carbon stocks of 2, 6 and 10 year planted mangroves were studied through destructive method of weighting each tree component. The objective was to establish new allometries and carbon production of R. apiculata. Two aboveground biomass allometries of R. apiculata have been developed based on D₃₀ (AGB_D = 0.1224 D₃₀^2.3380) and D₃₀²H (AGB_DH=0.1508 D₃₀²H^0.7793). Accuracy level of aboveground biomass estimation was 85.40% to the actual values of destructive calculation. Each biomass allometric equation can be applied accurately when the estimated mangrove ecosystem has similarity in species, age, tree-density, wood-density and growth factors of mangrove ecosystem where allometry is established. The allometric equation of above-ground carbon stock AGC_D=0.0368D₃₀^2.5996 (based on stem diamater) and AGC_DH=0.0422D₃₀²H^0.8730 (based on combined stem diameter and tree height) can be used to estimate the R. apiculata carbon stocks of non-destructive measurement. However, the accuracy level of AGC_D and AGC_DH allometries used to estimate non-destructive R. apiculata carbon stocks was 60.14% and 79.72% to the actual carbon value of destructive study. The average aboveground carbon stocks of 2 – 10 year R. apiculata were 37.2 MgC ha^-1 (destructive actual value), 30.2 MgC ha^-1 (D₃₀²H), and 29.9 MgC ha^-1 (D₃₀) respectively. It is concluded that the estimated allometric values of aboveground biomass and carbon productions of restored mangroves are closely related to the growth of stem diameter and tree height, but its values are lower than destructive actual value.

KEYWORDS
Aboveground Biomass, Allometry, Carbon Stocks, Restored Mangroves, Carbon Sequestration. Rhizophora Apiculata

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Bambang Suprayogi , Joko Purbopuspito , Meilinda S. Harefa , Grace Y. Panjaitan , Zulkifli Nasution , "The Aboveground Biomass Allometry and Carbon Stocks of Serial Age Planted Rhizophora apiculata in Northern Sumatra, Indonesia," Universal Journal of Agricultural Research, Vol. 10, No. 4, pp. 305 - 330, 2022. DOI: 10.13189/ujar.2022.100401.

(b). APA Format:
Bambang Suprayogi , Joko Purbopuspito , Meilinda S. Harefa , Grace Y. Panjaitan , Zulkifli Nasution (2022). The Aboveground Biomass Allometry and Carbon Stocks of Serial Age Planted Rhizophora apiculata in Northern Sumatra, Indonesia. Universal Journal of Agricultural Research, 10(4), 305 - 330. DOI: 10.13189/ujar.2022.100401.