Abstract
<div>This article compares the capacity of undisturbed tropical forest in absorbing CO</div><div>and acts as a net sink with the disturbed (drained) peatland forest acting as a net source. Undisturbed forest of Lore Lindu National Park (LLNP) absorbs substantial amount of CO</div><div>2</div><div>2 </div><div> with low ecosystem respiration resulted in a net absorbtion reaching -970 gCm</div><div>-2</div><div> year</div><div>-1</div><div>. Data from a disturbed peatland forest in Central Kalimantan shows that although absorption was higher than the LLNP area ecosystem respiration of this drained peatland resulted in a big net emission reaching 447 gCm</div><div>-2</div><div> year</div><div>-1</div><div>. Recovery of the hydrological system of the area, reduced emission substantially.This article compares the capacity of undisturbed tropical forest in absorbing COand acts as a net sink with the disturbed (drained) peatland forest acting as a net source. Undisturbed forest of Lore Lindu National Park (LLNP) absorbs substantial amount of CO22 with low ecosystem respiration resulted in a net absorbtion reaching -970 gCm-2 year-1. Data from a disturbed peatland forest in Central Kalimantan shows that although absorption was higher than the LLNP area ecosystem respiration of this drained peatland resulted in a big net emission reaching 447 gCm-2 year-1. Recovery of the hydrological system of the area, reduced emission substantially.</div>
Highlights
Tropical forests play a critical role on the global climate, through its ability to absorb and store a large quantities of terrestrial carbon
Grace (2004) showed that the stocks and the Net Primary Production are largest in the tropical forest and the CO2 sink strength is highest compared to the other biomes
Limited study sites for the tropics are from South America only and because of that, we are lacking empirical data to get a comprehensive picture on the absorption capacity of tropical forest ecosystems
Summary
Tropical forests play a critical role on the global climate, through its ability to absorb and store a large quantities of terrestrial carbon. Despite the controversy of the information (as uncertainty is very high) the above assessment did not take into account the natural absorption of Indonesian vegetation accurately (if any), probably due to the unavailability or lack of data. The synopsis below is written as an input for the Indonesian GHG Inventory assessment for LULUCF It provides data on Net Primary Production (NPP), Net Ecosystem Exchange (NEE), Canopy Production efficiency, and biomass (and carbon stock) of intact natural forest Lore Lindu National Park (LLNP) in Central Sulawesi. The high productivity of this tropical forest is probably due to “fertilization effect” of the increasing atmospheric CO2 concentration from a pre-industral value of 280 ppm to more than 380 ppm in 2006. For this area e was found to reach on average 1.10 gCMJ-1, with maximum value of 1.5 gCMJ-1 which is quite high
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