Global patterns and drivers of initial plant litter ash concentration

Yang, Qiao; Yue, Kai; Wu, Fuzhong; Heděnec, Petr; Ni, Xiangyin; Wang, Dingyi; Yuan, Ji; Yu, Jimei; Peng, Yan

doi:10.1016/j.scitotenv.2022.154702

Cited by 8 publications

(4 citation statements)

References 51 publications

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“…The total lignin content (both acid-soluble and insoluble lignin) was comparable in all the accessions irrespective of agronomic conditions. The estimation of ash content provides a comprehensive index of the mineral content of each vegetative tissue of plants . Both transgenic oilcane and non-transgenic sugarcane had a higher ash content in their leaves as compared to bagasse.…”

Section: Resultsmentioning

confidence: 99%

“…The estimation of ash content provides a comprehensive index of the mineral content of each vegetative tissue of plants. 21 Both transgenic oilcane and non-transgenic sugarcane had a higher ash content in their leaves as compared to bagasse. most commonly used procedures for commercial extraction of oil from oilseeds for biodiesel production.…”

Section: Impact Of Agronomic Conditions On Transgenic Oilcane 1566 32...mentioning

confidence: 99%

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Bioprocessing, Recovery, and Mass Balance of Vegetative Lipids from Metabolically Engineered “Oilcane” Demonstrates Its Potential as an Alternative Feedstock for Drop-In Fuel Production

Maitra

Viswanathan

Park

et al. 2022

ACS Sustainable Chem. Eng.

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Plant oils are increasingly in demand as renewable feedstocks for biodiesel and biochemicals. Currently, oilseeds are the primary source of plant oils. Although the vegetative tissues of plants express lipid metabolism pathways, they do not hyperaccumulate lipids. Elevated synthesis, storage, and accumulation of lipids in vegetative tissues have been achieved by metabolic engineering of sugarcane to produce "oilcane". This study evaluates the potential of oilcane as a renewable feedstock for the coproduction of lipids and fermentable sugars. Oilcane was grown under favorable climatic and field conditions in Florida (FLOC) as well as during an abbreviated growing season, outside its typical growing region, in Illinois (ILOC). The potential lipid yield of 0.35 tons/ha was projected from the hyperaccumulation of fatty acids in the stored vegetative biomass of FLOC, which is approaching the lipid yield of soybean (0.44 tons/ha). Processing of the vegetative tissues of oilcane recovered 0.20 tons/ha, which represents the recovery of 55% of the total lipids from FLOC. Chemical-free hydrothermal bioprocessing of ILOC and FLOC bagasse and leaves at 180 °C for 10 min prevented the degeneration of in situ plant lipids. This allowed the recovery of lipids at the end of the bioprocess with a major fraction of lipids remaining in the biomass residues after pretreatment and saccharification. Improvements through refined biomass processing, crop management, and metabolic engineering are expected to boost lipid yields and make oilcane a prime feedstock for the production of biodiesel.

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Section: Resultsmentioning

confidence: 99%

Section: Impact Of Agronomic Conditions On Transgenic Oilcane 1566 32...mentioning

confidence: 99%

Bioprocessing, Recovery, and Mass Balance of Vegetative Lipids from Metabolically Engineered “Oilcane” Demonstrates Its Potential as an Alternative Feedstock for Drop-In Fuel Production

Maitra

Viswanathan

Park

et al. 2022

ACS Sustainable Chem. Eng.

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“…In contrast, angiosperm roots have higher SRL and Bi, indicating that there are more roots that obtain mineral and nutrients elements ( Comas and Eissenstat, 2004 ). This may be because that the fast-growing fine roots in angiosperms absorb nutrients better than the slow-growing thick roots in gymnosperms ( Yang et al., 2022 ). And angiosperms on the ground typically have wide leaves, while gymnosperms mostly have conifers ( Guo et al., 2008 ), which may also explain why the initial nutrient concentration of board leaf is higher than that of conifers.…”

Section: Discussionmentioning

confidence: 99%

Global characteristics and drivers of sodium and aluminum concentrations in freshly fallen plant litter

Wang

et al. 2023

Front. Plant Sci.

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Plant litter is not only the major component of terrestrial ecosystem net productivity, the decomposition of which is also an important process for the returns of elements, including sodium (Na) and aluminum (Al), which can be beneficial or toxic for plant growth. However, to date, the global characteristics and driving factors of Na and Al concentrations in freshly fallen litter still remain elusive. Here, we evaluated the concentrations and drivers of litter Na and Al with 491 observations extracted from 116 publications across the globe. Results showed that (1) the average concentrations of Na in leaf, branch, root, stem, bark, and reproductive tissue (flowers and fruits) litter were 0.989, 0.891, 1.820, 0.500, 1.390, and 0.500 g/kg, respectively, and the concentrations of Al in leaf, branch, and root were 0.424, 0.200 and 1.540 g/kg, respectively. (2) mycorrhizal association significantly affected litter Na and Al concentration. The highest concentration of Na was found in litter from trees associated with both arbuscular mycorrhizal fungi (AM) and ectomycorrhizal fungi (ECM), followed by litter from trees with AM and ECM. Lifeform, taxonomic, and leaf form had significant impacts on the concentration of Na and Al in plant litter of different tissues. (3) leaf litter Na concentration was mainly driven by mycorrhizal association, leaf form and soil phosphorus concentration, while leaf litter Al concentration was mainly controlled by mycorrhizal association, leaf form, and precipitation in the wettest month. Overall, our study clearly assessed the global patterns and influencing factors of litter Na and Al concentrations, which may help us to better understand their roles in the associated biogeochemical cycles in forest ecosystem.

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“…Therefore, assessing the initial concentrations of K, Ca and Mg in freshly fallen litter will not only help us better understand the amount of these elements that are returned to the soils through the decomposition process of the litter, but will also improve our understanding of the role of these elements in the decomposition of the litter. However, until now, the majority of studies in the literature have primarily concentrated on litter decomposition process and the associated driving factors, with limited studies addressing initial litter quality (Peng et al., 2023; Peng, Yuan, et al., 2022; Yang et al., 2022), especially the concentrations of metal elements such as K, Ca and Mg.…”

Section: Introductionmentioning

confidence: 99%

Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale

Yuan,

Wu,

et al. 2024

Functional Ecology

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The initial concentration of litter nutrient not only affects the following decomposition process but also determines the quantities of nutrients returned to the soil. The aim of this study is to assess the global patterns and driving factors of three macronutrients, namely potassium (K), calcium (Ca) and magnesium (Mg), in freshly fallen litter. By synthesizing 5861 data points extracted from 584 publications, we quantitatively evaluated the concentrations of litter K, Ca and Mg in different litter types, life forms, taxonomic divisions and mycorrhizal associations. Also, using the machine learning method, we predicted their global patterns in forests, grasslands and shrublands. We found that (1) mean K, Ca and Mg concentrations ranged from 2.63 to 6.23, 1.05 to 11.50 and 0.20 to 2.74 g/kg, respectively, across different litter types; (2) the initial nutrients of the litter were significantly affected by plant functional types (e.g. life form, taxonomic division and mycorrhizal association), climate (e.g. isothermality, mean diurnal range, annual evapotranspiration and precipitation seasonality) and soil properties (e.g. pH, exchangeable Ca concentration and water content), with a higher litter K concentration of herbaceous plants, higher K, Ca and Mg concentrations from angiosperms and higher K and Mg concentrations from plants associated with arbuscular mycorrhiza (AM) fungi; and (3) the predicted leaf litter K, Ca and Mg concentrations were lower in high‐latitude regions compared with those in low‐ and/or mid‐latitude regions. Our study provides a globally comprehensive analysis on the patterns and driving factors of three important macronutrients in freshly fallen litter, contributing to a better understanding of their role in the decomposition process of litter, as well as the associated biogeochemical cycles under the future climate change scenario. Read the free Plain Language Summary for this article on the Journal blog.

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Global patterns and drivers of initial plant litter ash concentration

Cited by 8 publications

References 51 publications

Bioprocessing, Recovery, and Mass Balance of Vegetative Lipids from Metabolically Engineered “Oilcane” Demonstrates Its Potential as an Alternative Feedstock for Drop-In Fuel Production

Bioprocessing, Recovery, and Mass Balance of Vegetative Lipids from Metabolically Engineered “Oilcane” Demonstrates Its Potential as an Alternative Feedstock for Drop-In Fuel Production

Global characteristics and drivers of sodium and aluminum concentrations in freshly fallen plant litter

Climate and soil properties regulate the initial concentrations of potassium, calcium and magnesium in plant litter on a global scale

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