Simple additive simulation overestimates real influence: altered nitrogen and rainfall modulate the effect of warming on soil carbon fluxes

2017 ◽  
Vol 23 (8) ◽  
pp. 3371-3381 ◽  
Author(s):  
Xiangyin Ni ◽  
Wanqin Yang ◽  
Zemin Qi ◽  
Shu Liao ◽  
Zhenfeng Xu ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Carbon Fluxes

scholarly journals Soil carbon fluxes and stocks in a Great Lakes forest chronosequence

2009 ◽  
Vol 15 (1) ◽  
pp. 145-155 ◽  
Author(s):  
JIANWU TANG ◽  
PAUL V. BOLSTAD ◽  
JONATHAN G. MARTIN
Keyword(s):  
Great Lakes ◽  
Soil Carbon ◽  
Carbon Fluxes

scholarly journals Soil carbon fluxes and balances of crop rotations under long-term no-till

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
João Paulo Gonsiorkiewicz Rigon ◽  
Juliano Carlos Calonego
Keyword(s):  
Soil Carbon ◽  
Crop Residues ◽  
Carbon Fluxes ◽  
Crop Rotations ◽  
Crop Species ◽  
Forage Sorghum ◽  
C Balance ◽  
C Stocks ◽  
Sunn Hemp ◽  
C And N

Abstract Background A field study with the same crop rotations was conducted to test the hypothesis that the soil Carbon fluxes and balances could vary according to the crop species and also mitigate carbon dioxide (CO2) emission. This study aimed to assess the CO2 emission from crop rotations according to C and N inputs from crop residue, the influences on soil organic carbon (SOC) and total soil nitrogen (TN) stocks, identifying the soybean production systems with positive C balance. Triticale (x Triticosecale) or sunflower (Helianthus annuus) are grown in the fall/winter; sunn hemp (Crotalaria juncea), forage sorghum (Sorghum bicolor), pearl millet (Pennisetum glaucum), or fallow are the spring treatments, and soybean as a main crop in summer. Results We found that high C inputs from crop residues modify the C dynamics in crop rotations by reducing the C output (CO2) and increasing C sequestration in the soil. In general, the higher SOC, C stocks, and TN in soil surface were due to higher C and N inputs from sunn hemp or forage sorghum crop residues in spring. These crops also produced lower accumulated CO2 emissions and, when rotating with triticale in the fall-winter season resulted in a positive C balance, making these soybean crop rotations more efficient. Conclusion Our study suggests the ideal crop species choice in a rotation can mitigate the CO2 emissions by increasing C and N input from crop residues and consequently SOC and C stocks. In particular, crop rotation comprises an important tool to achieve a positive C balance, mitigate CO2 emissions and provide an additional ecosystem service to soybean cultivation option.

Climatic and landscape influences on soil moisture are primary determinants of soil carbon fluxes in seasonally snow-covered forest ecosystems

2015 ◽  
Vol 123 (3) ◽  
pp. 447-465 ◽  
Author(s):  
Clare M. Stielstra ◽  
Kathleen A. Lohse ◽  
Jon Chorover ◽  
Jennifer C. McIntosh ◽  
Greg A. Barron-Gafford ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Soil Carbon ◽  
Forest Ecosystems ◽  
Carbon Fluxes ◽  
Landscape Influences

scholarly journals Microbial Functional Responses Explain Alpine Soil Carbon Fluxes under Future Climate Scenarios

mBio ◽  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Qi Qi ◽  
Yue Haowei ◽  
Zhenhua Zhang ◽  
Joy D. Van Nostrand ◽  
Linwei Wu ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Soil Carbon ◽  
Climate Changes ◽  
Gross Primary Production ◽  
Carbon Fluxes ◽  
Future Climate ◽  
The Tibetan Plateau ◽  
Climate Scenarios ◽  
Functional Responses ◽  
Alpine Grasslands

ABSTRACT Soil microorganisms are sensitive to temperature in cold ecosystems, but it remains unclear how microbial responses are modulated by other important climate drivers, such as precipitation changes. Here, we examine the effects of six in situ warming and/or precipitation treatments in alpine grasslands on microbial communities, plants, and soil carbon fluxes. These treatments differentially affected soil carbon fluxes, gross primary production, and microbial communities. Variations of soil CO2 and CH4 fluxes across all sites significantly (r > 0.70, P < 0.050) correlated with relevant microbial functional abundances but not bacterial or fungal abundances. Given tight linkages between microbial functional traits and ecosystem functionality, we conclude that future soil carbon fluxes in alpine grasslands can be predicted by microbial carbon-degrading capacities. IMPORTANCE The warming pace in the Tibetan Plateau, which is predominantly occupied by grassland ecosystems, has been 0.2°C per decade in recent years, dwarfing the rate of global warming by a factor of 2. Many Earth system models project substantial carbon sequestration in Tibet, which has been observed. Here, we analyzed microbial communities under projected climate changes by 2100. As the soil “carbon pump,” the growth and activity of microorganisms can largely influence soil carbon dynamics. However, microbial gene response to future climate scenarios is still obscure. We showed that the abundances of microbial functional genes, but not microbial taxonomy, were correlated with carbon fluxes and ecosystem multifunctionality. By identifying microbial traits linking to ecosystem functioning, our results can guide the assessment of future soil carbon fluxes in alpine grasslands, a critical step toward mitigating climate changes.

Impacts of forest management type and season on soil carbon fluxes in Eastern Mau Forest, Kenya

2018 ◽  
Vol 57 (1) ◽  
pp. 113-121 ◽  
Author(s):  
George K. Tarus ◽  
Bernard K. Kirui ◽  
Gilbert Obwoyere
Keyword(s):  
Forest Management ◽  
Soil Carbon ◽  
Carbon Fluxes ◽  
Eastern Mau

scholarly journals A field system for measuring plant and soil carbon fluxes using stable isotope methods

2020 ◽  
Author(s):  
Christopher S. McCloskey ◽  
Wilfred Otten ◽  
Eric Paterson ◽  
Ben Ingram ◽  
Guy J. D. Kirk
Keyword(s):  
Stable Isotope ◽  
Soil Carbon ◽  
Carbon Fluxes ◽  
Field System

Estimating soil carbon fluxes following land-cover change: a test of some critical assumptions for a region in Costa Rica

2004 ◽  
Vol 10 (2) ◽  
pp. 170-181 ◽  
Author(s):  
Jennifer S. Powers ◽  
Jane M. Read ◽  
Julie S. Denslow ◽  
Sandra M. Guzman
Keyword(s):  
Costa Rica ◽  
Land Cover ◽  
Soil Carbon ◽  
Land Cover Change ◽  
Carbon Fluxes

scholarly journals Photosynthetic enhancement and diurnal stem and soil carbon fluxes in a mature Norway spruce stand under elevated CO2

2016 ◽  
Vol 124 ◽  
pp. 110-119 ◽  
Author(s):  
Martin Karl-Friedrich Bader ◽  
Manuel Mildner ◽  
Christina Baumann ◽  
Sebastian Leuzinger ◽  
Christian Körner
Keyword(s):  
Soil Carbon ◽  
Norway Spruce ◽  
Elevated Co2 ◽  
Carbon Fluxes
Sign in / Sign up

Export Citation Format

Share Document