Publications by authors named "D E Goll"
In 2023, the CO growth rate was 3.37 ± 0.11 ppm at Mauna Loa, which was 86% above that of the previous year and hit a record high since observations began in 1958, while global fossil fuel CO emissions only increased by 0.
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- Afforestation can help combat climate change by increasing carbon storage and providing ecosystem benefits, but soil nutrient availability can limit its success, particularly in nutrient-poor tropical regions.
- Enhanced rock weathering (ERW), specifically using wollastonite skarn, was tested in a rubber plantation in China to improve soil health and support biodiversity.
- The addition of wollastonite skarn showed significant improvements in various ecosystem functions but didn't affect soil enzyme activity; increased soil pH and microbial network complexity were key factors in enhancing ecosystem multifunctionality, suggesting ERW's potential for climate change mitigation.
Microbial carbon use efficiency (CUE) affects the fate and storage of carbon in terrestrial ecosystems, but its global importance remains uncertain. Accurately modeling and predicting CUE on a global scale is challenging due to inconsistencies in measurement techniques and the complex interactions of climatic, edaphic, and biological factors across scales. The link between microbial CUE and soil organic carbon relies on the stabilization of microbial necromass within soil aggregates or its association with minerals, necessitating an integration of microbial and stabilization processes in modeling approaches.
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- Enhanced rock weathering (ERW) is a new method for removing carbon dioxide from the atmosphere and aims to improve soil carbon sequestration through geochemical processes.
- A 2-year study in tropical rubber plantations showed that adding wollastonite powder significantly increased soil organic carbon (SOC) more than soil inorganic carbon (HCO), with SOC increases being four to eight times greater.
- The study found that ERW enhances the accrual of stable organic carbon in soil by improving mineral-associated organic matter and boosting nutrient release, indicating that the impact on SOC should be considered when evaluating the effectiveness of ERW for carbon dioxide removal.
The more effective use of readily available Ce in FeNdB sintered magnets is an important step towards more resource-efficient, sustainable, and cost-effective permanent magnets. These magnets have the potential to bridge the gap between high-performance FeNdB and hard ferrite magnets. However, for higher degrees of cerium substitution (>25%), the magnetic properties deteriorate due to the lower intrinsic magnetic properties of FeCeB and the formation of the Laves phase FeCe in the grain boundaries.
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