Influence of plant communities and soil properties on trace gas fluxes in riparian northern hardwood forests

Hopfensperger, Kristine N.; Gault, Christine M.; Groffman, Peter M.

doi:10.1016/j.foreco.2009.08.004

Cited by 25 publications

(14 citation statements)

References 67 publications

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“…riparian ecosystems can oxidize CH 4 as upland grassland and forest ecosystems. This phenomenon has been reported in many studies (Hopfensperger et al, 2009;Sun et al, 2013bSun et al, , 2013c and was also seen at this site in the mature plantation and in the newly planted stand (Figs. 3e and 4b).…”

Section: Magnitude Of F Ch4supporting

confidence: 87%

Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting

Shenghua

Chen

Tang

et al. 2015

Forest Ecology and Management

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a b s t r a c tPoplar plantations have widely spread around the world due to its high productivity and adaptability. Clear-cutting is the primary harvesting method for poplar plantation management in southern China. However, the effect of harvesting on ecosystem carbon fluxes limits our ability to estimate its carbon sequestration. A consecutive, three-year observation on ecosystem CO 2 and CH 4 flux (F CO2 and F CH4 ) of a Populus dettoides plantation on the floodplain of Yangtze River was made prior and post to the clearcutting using an eddy-covariance system. We found that clear-cutting turned the ecosystem from a strong carbon sink to a mediate carbon source only in several months, July to next January, after the harvest. The ecosystem turned to a net carbon sink at the beginning of the first growing season following clear-cutting due to the large productivity of understory vegetation in this region. The annual carbon budget was À424.3 ± 52.5 g-C m À2 (95% confidence interval) in the harvesting year, with À53.6 ± 22.8 g-C m À2 the first year and À290.7 ± 34.2 g-C m À2 the second year after clear-cutting. Clear-cutting turned the ecosystem from a net CH 4 sink to a net CH 4 source after the third month, but during the three years the CH 4 emission only balanced out a very small portion (0.3%) of F CO2 . In noninundation periods, F CH4 varied from À0.01 to 0.24 mmol m À2 d À1 , with a mean (±SD) of 0.11 ± 0.08 mmol m À2 d À1 , while it ranged from 0.33 to 4.39 mmol m À2 d À1 during inundation, with a mean (±SD) of 2.17 ± 1.16 mmol m À2 d À1 . Daily and weekly F CH4 during non-inundation period were highly correlated with ground water table, soil moisture, and friction velocity, while F CH4 during inundation depended on inundation depth.

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Section: Magnitude Of F Ch4supporting

confidence: 87%

Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting

Shenghua

Chen

Tang

et al. 2015

Forest Ecology and Management

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“…This variation was due to differences in soil physical conditions and the input of organic matter with higher N content (Vasconcellos et al 2013), which affected the structure and activity of the soil microbial community (Hu et al 2014). Soil respiration rates were within range of those reported by Hopfensprenger et al (2009), Groffman et al 2006, and Teiter and Mander (2005 in temperate forested riparian zones and forests. Respiration rates were also similar in the GRS treatment compared to those reported by Tufekcioglu et al (2001) and Audet et al (2013).…”

Section: Soil Biochemical Characteristicsmentioning

confidence: 90%

“…Differences in soil moisture, temperature, vegetative composition, and soil organic matter accumulation caused the observed variation in soil respiration among treatments in our study. Similarly, in Adirondack Park, New York, USA, Hopfensprenger et al (2009) investigated five different forested riparian sites that, although they were in close proximity to each other, differed considerably in soil respiration and their vegetative composition. They found that soil respiration was more strongly correlated to the number of stems and species composition than soil temperature or moisture (Hopfensprenger et al 2009).…”

Section: Soil Biochemical Characteristicsmentioning

confidence: 99%

“…Similarly, in Adirondack Park, New York, USA, Hopfensprenger et al (2009) investigated five different forested riparian sites that, although they were in close proximity to each other, differed considerably in soil respiration and their vegetative composition. They found that soil respiration was more strongly correlated to the number of stems and species composition than soil temperature or moisture (Hopfensprenger et al 2009). Additionally, riparian forests receiving NO 3 -N from adjacent agricultural fields had greater soil respiration rates than mature forests (Teiter and Mander 2005;Soosaar et al 2011).…”

Section: Soil Biochemical Characteristicsmentioning

confidence: 99%

“…For example, some studies found that soil moisture (McLain and Martens 2006;Soosaar et al 2011) andsoil temperature (Teiter andMander 2005;Soosaar et al 2011) are the driving factors of soil respiration in riparian zones. However, others found that vegetation composition (Hopfensprenger et al 2009) or tree maturity (Bailey et al 2009) plays a greater role in controlling respiration than soil moisture and temperature. Additionally, only a few studies have investigated soil respiration from rehabilitated/restored riparian zones, and most of these focused on grassed (GRS) riparian zones (Tufekcioglu et al 1999;Audet et al 2013) or reconstructed wetlands (Mander et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Riparian Land-Use and Rehabilitation: Impact on Organic Matter Input and Soil Respiration

Oelbermann

Raimbault

2014

Environmental Management

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Rehabilitated riparian zones in agricultural landscapes enhance environmental integrity and provide environmental services such as carbon (C) sequestration. This study quantified differences in organic matter input, soil biochemical characteristics, and soil respiration in a 25-year-old rehabilitated (RH), grass (GRS), and undisturbed natural forest (UNF) riparian zone. Input from herbaceous vegetation was significantly greater (P < 0.05) in the GRS riparian zone, whereas autumnal litterfall was significantly greater (P < 0.05) in the RH riparian zone. Soil bulk density was significantly greater (P < 0.05) in the RH riparian zone, but its soil chemical characteristics were significantly lower. Soil respiration rates were lowest (P < 0.05) in the UNF (106 C m(-2) h(-1)), followed by the RH (169 mg C m(-2) h(-1)) and GRS (194 C m(-2) h(-1)) riparian zones. Soil respiration rates were significantly different (P < 0.05) among seasons, and were significantly correlated with soil moisture (P < 0.05) and soil temperature (P < 0.05) in all riparian zones. Soil potential microbial activity indicated a significantly different (P < 0.05) response of the microbial metabolic diversity in the RH compared to the GRS and UNF riparian zones, and principle component analysis showed a distinct difference in microbial activity among the riparian land-use systems. Rehabilitating degraded riparian zones with trees rather than GRS is a more effective approach to the long-term mitigation of CO2. Therefore, the protection of existing natural/undisturbed riparian forests in agricultural landscapes is equally important as their rehabilitation with trees, given their higher levels of soil organic C and lower soil respiration rates.

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Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China

Liu

Zhang

2011

CLEAN Soil Air Water

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Soil denitrification in reservoir shoreline wetlands is an important process for removing excess inorganic nitrogen from upland runoff and controlling eutrophication in aquatic ecosystems. As yet, little is known about the influence of vegetation characteristics on the soil denitrification potential in reservoir shoreline wetlands, although vegetation can affect both denitrifying bacteria and soil properties. In this study, we measured the spatial variability of denitrification enzyme activity (DEA) using acetylene block method in shoreline wetlands of the Danjiangkou Reservoir, a water source of the South-to-North Water Transfer Project in China. Results indicated that DEA ranged from 0.001 to 2.449 mg N (N 2 O) g À1 h À1 , with a mean of 0.384DEA varied significantly among five representative plant communities and the highest DEA (0.248-2.449 mg N (N 2 O) g À1 h À1 ) was observed in the Polygonum hydropiper community. Plant biomass and vegetation cover were significantly and positively related to DEA and together explained 44.2% of the total variance. These results suggest that vegetation characteristics should also be considered in assessing soil denitrification capacity and restoring shoreline wetlands for nitrogen pollution removal in the Danjiangkou Reservoir after dam heightening.

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Influence of plant communities and soil properties on trace gas fluxes in riparian northern hardwood forests

Cited by 25 publications

References 67 publications

Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting

Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting

Riparian Land-Use and Rehabilitation: Impact on Organic Matter Input and Soil Respiration

Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China

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