Degradation Potential and Soil Carbon Mineralization of Biomass Gasification Tars

2007 ◽  
Author(s):  
Rizaldo E Aldas ◽  
Bryan M Jenkins ◽  
Jean S VanderGheynst
Keyword(s):  
Soil Carbon ◽  
Carbon Mineralization ◽  
Biomass Gasification ◽  
Soil Carbon Mineralization

scholarly journals Long-Term Nitrogen Addition Decreases Soil Carbon Mineralization in an N-Rich Primary Tropical Forest

Forests ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 734
Author(s):  
Xiankai Lu ◽  
Qinggong Mao ◽  
Zhuohang Wang ◽  
Taiki Mori ◽  
Jiangming Mo ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Organic Carbon ◽  
Tropical Forest ◽  
Soil Carbon ◽  
Tropical Forests ◽  
Carbon Mineralization ◽  
N Deposition ◽  
Soil Carbon Mineralization ◽  
N Additions

Anthropogenic elevated nitrogen (N) deposition has an accelerated terrestrial N cycle, shaping soil carbon dynamics and storage through altering soil organic carbon mineralization processes. However, it remains unclear how long-term high N deposition affects soil carbon mineralization in tropical forests. To address this question, we established a long-term N deposition experiment in an N-rich lowland tropical forest of Southern China with N additions such as NH4NO3 of 0 (Control), 50 (Low-N), 100 (Medium-N) and 150 (High-N) kg N ha−1 yr−1, and laboratory incubation experiment, used to explore the response of soil carbon mineralization to the N additions therein. The results showed that 15 years of N additions significantly decreased soil carbon mineralization rates. During the incubation period from the 14th day to 56th day, the average decreases in soil CO2 emission rates were 18%, 33% and 47% in the low-N, medium-N and high-N treatments, respectively, compared with the Control. These negative effects were primarily aroused by the reduced soil microbial biomass and modified microbial functions (e.g., a decrease in bacteria relative abundance), which could be attributed to N-addition-induced soil acidification and potential phosphorus limitation in this forest. We further found that N additions greatly increased soil-dissolved organic carbon (DOC), and there were significantly negative relationships between microbial biomass and soil DOC, indicating that microbial consumption on soil-soluble carbon pool may decrease. These results suggests that long-term N deposition can increase soil carbon stability and benefit carbon sequestration through decreased carbon mineralization in N-rich tropical forests. This study can help us understand how microbes control soil carbon cycling and carbon sink in the tropics under both elevated N deposition and carbon dioxide in the future.

Site-specific modelling of short-term soil carbon mineralization in central Argentina

Geoderma ◽  
2022 ◽  
Vol 406 ◽  
pp. 115487
Author(s):  
Julius Koritschoner ◽  
Franca Giannini Kurina ◽  
Susana Hang ◽  
Mónica Balzarini
Keyword(s):  
Soil Carbon ◽  
Carbon Mineralization ◽  
Short Term ◽  
Site Specific ◽  
Central Argentina ◽  
Soil Carbon Mineralization

Interactions between biochar and nitrogen impact soil carbon mineralization and the microbial community

2020 ◽  
Vol 196 ◽  
pp. 104437 ◽  
Author(s):  
Shuailin Li ◽  
Shuo Wang ◽  
Miaochun Fan ◽  
Yang Wu ◽  
Zhouping Shangguan
Keyword(s):  
Microbial Community ◽  
Soil Carbon ◽  
Carbon Mineralization ◽  
Soil Carbon Mineralization

Varied effects of untreated textile wastewater onto soil carbon mineralization and associated biochemical properties of a dryland agricultural soil

2016 ◽  
Vol 183 ◽  
pp. 530-540 ◽  
Author(s):  
Mahnaz Roohi ◽  
Muhammad Riaz ◽  
Muhammad Saleem Arif ◽  
Sher Muhammad Shahzad ◽  
Tahira Yasmeen ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Agricultural Soil ◽  
Carbon Mineralization ◽  
Textile Wastewater ◽  
Biochemical Properties ◽  
Soil Carbon Mineralization

Effects of warming and increased precipitation on soil carbon mineralization in an Inner Mongolian grassland after 6 years of treatments

2012 ◽  
Vol 48 (7) ◽  
pp. 859-866 ◽  
Author(s):  
Xiaoqi Zhou ◽  
Chengrong Chen ◽  
Yanfen Wang ◽  
Zhihong Xu ◽  
Zhengyi Hu ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Carbon Mineralization ◽  
Mongolian Grassland ◽  
Soil Carbon Mineralization
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