Analysis of Surface and Subsurface Soil Carbon Stocks in Natural Ecosystems within the Tuntang Sub-watershed

  • Bernardinus Arga Nugrahanto Universitas Kristen Satya Wacana
  • Alfred Jansen Sutrisno
Keywords: Biomass, Ecosystem, Necromass, C-Organic, and Soil, Biomass Ecosystem, Necromass, C-Organic, Soil

Abstract

Natural ecosystems play a role in carbon absorption and storage. Forests, grasslands, and shrubs are examples of natural ecosystems. These three ecosystems have differences, especially in absorbing and storing carbon. The purpose of this study was to determine carbon storage above ground (vegetation and necromass) and in the soil in natural ecosystems (forests, shrubs, and grasslands) and to provide recommendations for non-agricultural plants that can be applied to agroecosystems that have high carbon absorption in the Tuntang Sub-watershed. This research is exploratory research. This study uses quantitative data with primary data analysis of site conditions, soil carbon, and plant biomass calculations. The results show that the largest aboveground carbon storage is in forest ecosystem 1, namely 0.718 kg/m2, while the smallest is 0 kg/m2 found in the shrub ecosystem. Meanwhile, the largest understory carbon storage is in forest ecosystem 2, amounting to 1.683 kg/m2, while the smallest is in the shrub ecosystem, namely 0.306 kg/m2. For the largest necromass carbon storage in forest ecosystem 1, namely 0.630 kg/m2 and the smallest in grassland and shrub ecosystem 1, namely 0 kg/m2. The highest soil carbon (C-organic) was found in the natural forest ecosystem, namely 9.8% and the lowest was found in the grassland ecosystem, namely 6.99%. Suitable recommendations for garden, rice field, and dryland agroecosystems are mostly lamtoro because it is able to absorb and store carbon, ideal shade, can prevent erosion, and can be a green fertilizer for less fertile soil.

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Published
2026-10-15
How to Cite
Nugrahanto, B. A., & Alfred Jansen Sutrisno. (2026). Analysis of Surface and Subsurface Soil Carbon Stocks in Natural Ecosystems within the Tuntang Sub-watershed. AGRICOLA, 16(3), 335-351. https://doi.org/10.35724/ag.v16i3.7802
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