Impacts of agricultural management practices on C sequestration in forest-derived soils of the eastern Corn Belt

Dick, Warren A.; Blevins, R. L.; Frye, W. W.; Peters, Steven E.; Christenson, D. R.; Pierce, Francis J.; Vitosh, M. L.

doi:10.1016/s0167-1987(98)00112-3

Cited by 125 publications

(58 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several recent studies have attempted to assess current and future soil C-sequestration potential at a continental scale for Europe and North America based on ecosystem simulation models (89,94,(100)(101)(102)(103)(104)(105). Because these models are typically validated against data from long-term experiments in which net primary productivity and management follow current average practices, or even antiquated practices, their ability to simulate future scenarios outside the range of validation is questionable.…”

Section: Carbon Sequestration and Greenhouse Gas Emissionsmentioning

confidence: 99%

Meeting Cereal Demand While Protecting Natural Resources and Improving Environmental Quality

Cassman

Dobermann

Walters

et al. 2003

Annu. Rev. Environ. Resour.

875

476

View full text Add to dashboard Cite

Agriculture is a resource-intensive enterprise. The manner in which food production systems utilize resources has a large influence on environmental quality. To evaluate prospects for conserving natural resources while meeting increased demand for cereals, we interpret recent trends and future trajectories in crop yields, land and nitrogen fertilizer use, carbon sequestration, and greenhouse gas emissions to identify key issues and challenges. Based on this assessment, we conclude that avoiding expansion of cultivation into natural ecosystems, increased nitrogen use efficiency, and improved soil quality are pivotal components of a sustainable agriculture that meets human needs and protects natural resources. To achieve this outcome will depend on raising the yield potential and closing existing yield gaps of the major cereal crops to avoid yield stagnation in some of the world's most productive systems. Recent trends suggest, however, that increasing crop yield potential is a formidable scientific challenge that has proven to be an elusive goal.

show abstract

Section: Carbon Sequestration and Greenhouse Gas Emissionsmentioning

confidence: 99%

Meeting Cereal Demand While Protecting Natural Resources and Improving Environmental Quality

Cassman

Dobermann

Walters

et al. 2003

Annu. Rev. Environ. Resour.

875

476

View full text Add to dashboard Cite

show abstract

“…The reduction in soil nutrient levels can affect the plantations success, even though this is not a factor as critical as soil moisture content and aeration (Archibold et al, 2000). In spite of the changes in carbon and nitrogen induced by site preparation techniques, Dick et al (1998) report that the largest changes in organic matter content occur during the first five years after site preparation, with little variation beyond that period. Table 3 shows that the SMPC and RCAV treatments, with less intense soil tillage, have mortality of almost 90% for both species, PM and CS.…”

Section: Soil Characteristicsmentioning

confidence: 99%

Survival and early growth of mixed forest stands installed in a Mediterranean Region: Effects of site preparation intensity

Fonseca¹,

Figueiredo²,

Martins³

2011

Forest Ecology and Management

View full text Add to dashboard Cite

a b s t r a c tIn Mediterranean environments, availability of water and nutrients are the main factors limiting the success of afforestation. As part of a wider project, an experiment was established in Northeast Portugal, aiming at testing the effect of several site preparation techniques on plant survival and growth (height and diameter) in a newly installed mixed forest stand. Results presented regard plant response during 42 months after plantation. The experimental protocol consisted in seven treatments described by mechanical operations that rank soil disturbance intensity from none to high, set in plots of 375 m 2 , randomly distributed in three blocks, in different topographic positions (gentle slope plateau, moderate slope shoulder, and steep mid-slope). Pseudotsuga menziesii (PM) and Castanea sativa (CS) forest species were planted in a 4 m × 2 m scheme and in alternate rows with 12 plants on each row per plot, summing up 72 plant per specie and treatment at start of the experiment. The results show that: (i) the highest mortality was observed immediately after the plantation and before the dry season, on the lowest intensity treatments; (ii) after the dry season, the highest mortality was also observed in treatments with the lowest intensity of soil disturbance, while the lowest values were found on the intermediate intensity treatments; (iii) during the experimental period, the effect of treatments on plant growth (height and diameter) was statistically significant; however, experimental results do not lead yet to a clear quantitative relationship between soil disturbance intensity due to site preparation and plant response under the conditions tested.

show abstract

“…Relic forest remnants occur along creeks and as small woodlots (USDA-SCS 1984). The mean annual temperature of the site is 9.1°C with 173 frost-free days occurring each year and the mean annual precipitation is 905 mm (Dick et al 1998). The study included woodlot, grassland and agricultural land uses.…”

Section: Site Descriptionmentioning

confidence: 99%

Evaluation of structural chemistry and isotopic signatures of refractory soil organic carbon fraction isolated by wet oxidation methods

et al. 2009

View full text Add to dashboard Cite

Accurate quantification of different soil organic carbon (SOC) fractions is needed to understand their relative importance in the global C cycle. Among the chemical methods of SOC fractionation, oxidative degradation is considered more promising because of its ability to mimic the natural microbial oxidative processes in soil. This study focuses on detailed understanding of changes in structural chemistry and isotopic signatures of SOC upon different oxidative treatments for assessing the ability of these chemicals to selectively isolate a refractory fraction of SOC. Replicated sampling (to similar to 1 m depth) of pedons classified as Typic Fragiudalf was conducted under four land uses (woodlot, grassland, no-till and conventional-till continuous corn [Zea mays L.]) at Wooster, OH. Soil samples (< 2 mm) were treated with three oxidizing agents (hydrogen peroxide (H₂O₂), disodium peroxodisulfate (Na2S2O8) and sodium hypochlorite (NaOCl)). Oxidation resistant residues and the bulk soil from A1/Ap1 horizons of each land use were further analyzed by solid-state C-13 nuclear magnetic resonance (NMR) spectroscopy and accelerator mass spectrometry to determine structural chemistry and C-14 activity, respectively. Results indicated that, oxidation with NaOCl removed significantly less SOC compared to Na2S2O8 and H₂O₂. The NMR spectra revealed that NaOCl oxidation preferentially removed lignin-derived compounds at 56 ppm and at 110-160 ppm. On the other hand, the SOC resistant to Na2S2O8 and H₂O₂ oxidation were enriched with alkyl C groups, which dominate in recalcitrant macromolecules. This finding was corroborated by the C-14 activity of residual material, which ranged from -542 to -259aEuro degrees for Na2S2O8 resistant SOC and -475 to -182aEuro degrees for H₂O₂ resistant SOC as compared to relatively greater C-14 activity of NaOCl resistant residues (-47 to 61aEuro degrees). Additionally, H₂O₂ treatment on soils after light fraction removal was more effective in isolating the oldest (C-14 activity of -725 to -469aEuro degrees) SOC fraction. The Delta C-14 signature of SOC removed by different oxidizing agents, calculated by mass balance, was more or less similar irrespective of the difference in labile SOC removal efficiency. This suggests that SOC isolated by many fractionation methods is still a mixture of much younger and older material and therefore it is very important that the labile SOC should be completely removed before measuring the turnover time of stable and refractory pools of SOC

show abstract

Impacts of agricultural management practices on C sequestration in forest-derived soils of the eastern Corn Belt

Cited by 125 publications

References 7 publications

Meeting Cereal Demand While Protecting Natural Resources and Improving Environmental Quality

Meeting Cereal Demand While Protecting Natural Resources and Improving Environmental Quality

Survival and early growth of mixed forest stands installed in a Mediterranean Region: Effects of site preparation intensity

Evaluation of structural chemistry and isotopic signatures of refractory soil organic carbon fraction isolated by wet oxidation methods

Contact Info

Product

Resources

About