Methane uptake in soils from Pinus radiata plantations, a reverting shrubland and adjacent pastures: Effects of land-use change, and soil texture, water and mineral nitrogen

Tate, K. R.; Ross, D. J.; Saggar, Surinder; Hedley, C. B.; Dando, John; Singh, Brajesh K.; Lambie, Suzanne

doi:10.1016/j.soilbio.2007.01.005

Cited by 112 publications

(75 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…S7 and S3, respectively) throughout the year, which, in combination with a soil texture that typically is sandy, results in high annual CH 4 uptake rates (Tate et al, 2007). In contrast, high annual rates of CH 4 uptake in temperate evergreen forests result from elevated rates of soil methanotrophy during summer months (Sect.…”

Section: Regional Variabilitymentioning

confidence: 99%

Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil

et al. 2018

View full text Add to dashboard Cite

Abstract. Soil bacteria known as methanotrophs are the sole biological sink for atmospheric methane (CH 4 ), a potent greenhouse gas that is responsible for ∼ 20 % of the humandriven increase in radiative forcing since pre-industrial times. Soil methanotrophy is controlled by a plethora of factors, including temperature, soil texture, moisture and nitrogen content, resulting in spatially and temporally heterogeneous rates of soil methanotrophy. As a consequence, the exact magnitude of the global soil sink, as well as its temporal and spatial variability, remains poorly constrained. We developed a process-based model (Methanotrophy Model; MeMo v1.0) to simulate and quantify the uptake of atmospheric CH 4 by soils at the global scale. MeMo builds on previous models by Ridgwell et al. (1999) and Curry (2007) by introducing several advances, including (1) a general analytical solution of the one-dimensional diffusion-reaction equation in porous media, (2) a refined representation of nitrogen inhibition on soil methanotrophy, (3) updated factors governing the influence of soil moisture and temperature on CH 4 oxidation rates and (4) the ability to evaluate the impact of autochthonous soil CH 4 sources on uptake of atmospheric CH 4 . We show that the improved structural and parametric representation of key drivers of soil methanotrophy in MeMo results in a better fit to observational data. A global simulation of soil methanotrophy for the period 1990-2009 using MeMo yielded an average annual sink of 33.5 ± 0.6 Tg CH 4 yr −1 . Warm and semi-arid regions (tropical deciduous forest and open shrubland) had the highest CH 4 uptake rates of 602 and 518 mg CH 4 m −2 yr −1 , respectively. In these regions, favourable annual soil moisture content (∼ 20 % saturation) and low seasonal temperature variations (variations < ∼ 6 • C) provided optimal conditions for soil methanotrophy and soil-atmosphere gas exchange. In contrast to previous model analyses, but in agreement with recent observational data, MeMo predicted low fluxes in wet tropical regions because of refinements in formulation of the influence of excess soil moisture on methanotrophy. Tundra and mixed forest had the lowest simulated CH 4 uptake rates of 176 and 182 mg CH 4 m −2 yr −1 , respectively, due to their marked seasonality driven by temperature. Global soil uptake of atmospheric CH 4 was decreased by 4 % by the effect of nitrogen inputs to the system; however, the direct addition of fertilizers attenuated the flux by 72 % in regions with high agricultural intensity (i.e. China, India and Europe) and by 4-10 % in agriculture areas receiving low rates of N input (e.g. South America). Globally, nitrogen inputs reduced soil uptake of atmospheric CH 4 by 1.38 Tg yr −1 , which is 2-5 times smaller than reported previously. In addition to improved characterization of the contemporary soil sink for atmospheric CH 4 , MeMo provides an opportunity to quantify more accurately the relative importance of soil methanotrophy in the global CH 4 cycle in the past and its capaci...

show abstract

Section: Regional Variabilitymentioning

confidence: 99%

Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Temperate forest upland soils are generally net sinks of CH 4 (Butterbach-Bahl and Papen, 2002;Borken et al, 2003). Consumption of atmospheric CH 4 by soils is microbially mediated and consequently sensitive to various environmental factors and disturbance by management (Ojima et al, 1993;Tate et al, 2007). In view of the huge spatial and temporal variability of environmental factors and the limited number and restricted temporal coverage of long-term field measurements, the annual CH 4 sink of temperate forest soils is still afflicted with a high degree of uncertainty, ranging from 0.01 to 0.64 g CH 4 m À2 yr À1 (Smith et al, 2000;Dutaur and Verchot, 2007).…”

Section: Introductionmentioning

confidence: 99%

Long-term effects of clear-cutting and selective cutting on soil methane fluxes in a temperate spruce forest in southern Germany

Brüggemann

Gasché

et al. 2011

Environmental Pollution

View full text Add to dashboard Cite

a b s t r a c tBased on multi-year measurements of CH 4 exchange in sub-daily resolution we show that clear-cutting of a forest in Southern Germany increased soil temperature and moisture and decreased CH 4 uptake. CH 4 uptake in the first year after clear-cutting (À4.) was three times lower than during the pre-harvest period (À14.2 AE 1.3 mg C m À2 h À1 ). In contrast, selective cutting did not significantly reduce CH 4 uptake. Annual mean uptake rates were À1.18 kg C ha À1 yr À1 (spruce control), À1.16 kg C ha À1 yr À1(selective cut site) and À0.44 kg C ha À1 yr À1 (clear-cut site), respectively. Substantial seasonal and interannual variations in CH 4 fluxes were observed as a result of significant variability of weather conditions, demonstrating the need for long-term measurements. Our findings imply that a stepwise selective cutting instead of clear-cutting may contribute to mitigating global warming by maintaining a high CH 4 uptake capacity of the soil.

show abstract

“…We combined these data with our earlier work at nearby sites on the effects on soil-CH 4 oxidation of recent afforestation of pastures with Pinus radiata (Singh et al, , 2009Tate et al, 2007). Our aims were (1) to determine the time required after reforestation for soils to achieve high CH 4 -oxidation rates comparable to a mature native forest soil, and (2) to determine if the change in CH 4 -oxidation rates related to a shift in methanotrophic communities at the ecosystem level.…”

mentioning

confidence: 99%

“…At Turangi, two shrubland stands of 47 and 67 years (Manuka (Leptospermum scoparium) and Kanuka (Kunzea ericoides)) were selected and referred to here as Turangi-47 and Turangi-67, respectively. Results were compared with those from our previous studies (Singh et al, , 2009Tate et al, 2007) in nearby pasture and pine forests at Turangi, and at Puruki. A summary of the different land uses compared in this study is in Table 1.…”

mentioning

confidence: 99%

Response of methanotrophic communities to afforestation and reforestation in New Zealand

et al. 2011

View full text Add to dashboard Cite

Methanotrophs use methane (CH 4 ) as a carbon source. They are particularly active in temperate forest soils. However, the rate of change of CH 4 oxidation in soil with afforestation or reforestation is poorly understood. Here, soil CH 4 oxidation was examined in New Zealand volcanic soils under regenerating native forests following burning, and in a mature native forest. Results were compared with data for pasture to pine land-use change at nearby sites. We show that following soil disturbance, as little as 47 years may be needed for development of a stable methanotrophic community similar to that in the undisturbed native forest soil. Corresponding soil CH 4 -oxidation rates in the regenerating forest soil have the potential to reach those of the mature forest, but climoedaphic fators appear limiting. The observed changes in CH 4 -oxidation rate were directly linked to a prior shift in methanotrophic communities, which suggests microbial control of the terrestrial CH 4 flux and identifies the need to account for this response to afforestation and reforestation in global prediction of CH 4 emission.

show abstract

Methane uptake in soils from Pinus radiata plantations, a reverting shrubland and adjacent pastures: Effects of land-use change, and soil texture, water and mineral nitrogen

Cited by 112 publications

References 43 publications

Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil

Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil

Long-term effects of clear-cutting and selective cutting on soil methane fluxes in a temperate spruce forest in southern Germany

Response of methanotrophic communities to afforestation and reforestation in New Zealand

Contact Info

Product

Resources

About