scholarly journals Tropical Rainforest Restoration Plantations Are Slow to Restore the Soil Biological and Organic Carbon Characteristics of Old Growth Rainforest

2019 ◽  
Vol 79 (2) ◽  
pp. 432-442 ◽  
Author(s):  
Mark T. L. Bonner ◽  
Diane E. Allen ◽  
Richard Brackin ◽  
Tim E. Smith ◽  
Tom Lewis ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Tropical Rainforest ◽  
Old Growth

Direct effects of litter decomposition on soil dissolved organic carbon and nitrogen in a tropical rainforest

2015 ◽  
Vol 81 ◽  
pp. 255-258 ◽  
Author(s):  
Wen-Jun Zhou ◽  
Li-Qing Sha ◽  
Douglas A. Schaefer ◽  
Yi-Ping Zhang ◽  
Qing-Hai Song ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Litter Decomposition ◽  
Tropical Rainforest ◽  
Direct Effects ◽  
Carbon And Nitrogen

Impacts of logging on soil organic carbon and heterotrophic respiration in tropical forests in Borneo

2020 ◽  
Author(s):  
Sylvia H. Vetter ◽  
Yit Arn Teh ◽  
Michael Martin ◽  
Dafydd M. O. Elias ◽  
Terhi Riutta ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Respiration ◽  
Net Primary Productivity ◽  
Spatial Modelling ◽  
Selective Logging ◽  
Heterotrophic Respiration ◽  
Old Growth ◽  
Old Growth Forest ◽  
Logged Forest

<p>Selective logging is the practice of extracting selected commercial trees from natural production forests. The intensity of logging correlates with a reduction in biodiversity, wood production and biomass stocks. Less is known about the relationship of logging to soil organic carbon (SOC) and how it changes or recovers over time. Empirical measurements in Borneo provided SOC, soil respiration, aboveground and belowground net primary productivity (NPP) from intact old-growth forest (OGF) as well as from moderately to heavily logged (LOG) forest sites. Soil carbon (C) content and heterotrophic respiration (R<sub>h</sub>) was higher in LOG sites than in OGF sites. Moderately logged forest (logged > 10 years ago) contained more SOC than heavily logged forest (logged approx. 7 years ago). NPP was used to estimate the C input to the soil. All these data were used to test the biochemical model ECOSSE (<strong>E</strong>stimating <strong>C</strong>arbon in <strong>O</strong>rganic <strong>S</strong>oils – <strong>S</strong>equestration and <strong>E</strong>missions) to calculate SOC for the study sites. The model performed well in simulating the soil respiration of OGF and generated acceptable results for LOG sites in the validation process. The results for logged forests showed an increase in R<sub>h</sub> over the first 15 years, with some sites showing either a further increase over the next 15 years or stabilizing at a higher level compared to pre-disturbance conditions for other sites. However, for all modelled cases, a break was observed after 30 years, when R<sub>h</sub> decreased to a lower level (but not as low as for OGF) before reaching a new equilibrium. At the same time, SOC begins to increase. Spatial modelling showed the results for Borneo under logged conditions and the potential of storing C if logging was reduced. Only 22% of Borneo is under old-growth forest; the results show moderate to high C losses if this region is subjected to logging. Overall, the results show the disturbance of SOC and Rh through logging over periods longer than 30 years.</p>

scholarly journals Soil Organic Carbon and Total Nitrogen Gains in an Old Growth Deciduous Forest in Germany

PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e89364 ◽  
Author(s):  
Marion Schrumpf ◽  
Klaus Kaiser ◽  
Ernst-Detlef Schulze
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Nitrogen ◽  
Deciduous Forest ◽  
Old Growth

scholarly journals Supplementary material to "The role of geochemistry in organic carbon stabilization in tropical rainforest soils"

2021 ◽  
Author(s):  
Mario Reichenbach ◽  
Peter Fiener ◽  
Gina Garland ◽  
Marco Griepentrog ◽  
Johan Six ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Tropical Rainforest ◽  
Carbon Stabilization ◽  
Supplementary Material

scholarly journals Non-microbial methane emissions from tropical rainforest soils under different conditions

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255725
Author(s):  
Gaohui Jia ◽  
Qiu Yang ◽  
Huai Yang ◽  
Yamin Jiang ◽  
Wenjie Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Carbon ◽  
Soil Water ◽  
Incubation Time ◽  
Tropical Rainforest ◽  
Aerobic Condition ◽  
Emission Rates ◽  
Production Mechanisms ◽  
Water Contents ◽  
Soil Water Contents

Non-microbial methane (NM-CH4), emissions from soil might play a significant role in carbon cycling and global climate change. However, the production mechanisms and emission potential of soil NM-CH4 from tropical rainforest remain highly uncertain. In order to explore the laws and characteristics of NM-CH4 emission from tropical rainforest soils. Incubation experiments at different environmental conditions (temperatures, soil water contents, hydrogen peroxide) and for soils with different soil organic carbon (SOC) contents were conducted to investigate the NM-CH4 emission characteristics and its influence factors of soils (0-10cm) that collected from a tropical rainforest in Hainan, China. Incubation results illustrated that soil NM-CH4 release showed a linear increase with the incubation time in the first 24 hours at 70 °C, whereas the logarithmic curve increase was found in 192 h incubation. Soil NM-CH4 emission rates under aerobic condition were significantly higher than that of under anaerobic condition at first 24 h incubation. The increasing of temperature, suitable soil water contents (0–100%), and hydrogen peroxide significantly promoted soil NM-CH4 emission rates at the first 24 h incubation. However, excessive soil water contents (200%) inhibited soil NM-CH4 emissions. According to the curve simulated from the NM-CH4 emission rates and incubation time at 70 °C of aerobic condition, soil would no longer release NM-CH4 after 229 h incubation. The NM-CH4 emissions were positively corelated with SOC contents, and the average soil NM-CH4 emission potential was about 6.91 ug per gram organic carbon in the tropical mountain rainforest. This study revealed that soils in the tropical rainforest could produce NM-CH4 under certain environment conditions and it supported production mechanisms of thermal degradation and reactive oxygen species oxidation. Those results could provide a basic data for understanding the soil NM-CH4 production mechanisms and its potential in the tropical rainforest.

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