Continuous straw returning enhances the carbon sequestration potential of soil aggregates by altering the quality and stability of organic carbon

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 358, P. 120903 - 120903

Published: April 18, 2024

Language: Английский

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Slope Position Modulates Soil Chemical Properties and Microbial Dynamics in Tea Plantation Ecosystems

Agronomy, Journal Year: 2025, Volume and Issue: 15(3), P. 538 - 538

Published: Feb. 23, 2025

As a perennial plant, the nutrient supply for tea bushes is predominantly dependent on soil. Yunnan plantations exhibit significant topographic slope variations, yet combined impact of positions soil chemistry and microbial communities remains unexplored. This study investigated chemical properties community structures across three distinct areas within single plantation. The results showed that contents organic matter (OM), total nitrogen (TN), available nutrients (AN) at top (TS) were significantly higher than those foot (FS) (p < 0.001), while cation exchange capacity (CEC) potassium (TK) reached peak levels in middle (MS), with FS having lowest levels. Redundancy analysis (RDA) indicated bacterial primarily influenced by TK, magnesium (Mg), CEC, phosphorus (TP), pH, whereas fungal mainly regulated Mg, highlighting role shaping diversity distribution. Bacterial composition no slope-related differences, but varied notably family/genus MS exhibited highest network complexity, suggesting stronger species interactions. metabolic functions trophic modes conserved regions, indicating functional stability independent structural changes. reveals slope-driven soil-microbial dynamics plantations, offering insights into assembly adaptation under gradients. These findings support precision fertilization, ecological conservation, sustainable management plantations.

Language: Английский

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Impacts of altitude on plant green leaf, fresh litter, and soil stoichiometry in subtropical forests

Frontiers in Forests and Global Change, Journal Year: 2024, Volume and Issue: 7

Published: April 15, 2024

Background Ecological stoichiometric characteristics of carbon (C), nitrogen (N), phosphorus (P), and potassium (K) serve as crucial indicators nutrient cycling limitation in terrestrial ecosystems. However, our current understanding subtropical forests their response to different climate conditions is still limited. Methods We selected six altitudes ranging from 700 m 1,200 simulate an evergreen broadleaf forest Wuyi Mountain, Fujian Province, China. investigated C, N, P, K stoichiometry homeostasis the green leaves, newly senesced leaf litter (fresh litter), soil this forest. Results Leaf P levels showed a decline with increasing altitude. Notably, ratios components exhibited bimodal distribution along altitudinal gradient. Additionally, trend N resorption efficiencies was observed altitude increased. Moreover, weak leaves. These findings highlighted significant impact on This study also contributed mechanism plant growth strategies under conditions.

Language: Английский

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Root carboxylate release is common in phosphorus-limited forest ecosystems in China: using leaf manganese concentration as a proxy

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: June 19, 2024

Abstract Background and aims Certain plant species release root carboxylates in response to phosphorus (P) limitation; however, the prevalence of exudate P-limited forest ecosystems remains unexplored due challenges field assessment. Methods Manganese (Mn) accumulation mature leaves can indicate presence carboxylate exudates rhizosphere soil. To account for environmental factors such as soil pH, a negative reference that does not is used comparison. In this study, we assessed multiple stands across types different levels P availability northern (Gansu) southern (Guangxi) China. Leaf samples were collected from 188 families representing various life forms, leaf Mn concentration ([Mn]) was analyzed proxy exudation patterns, using Dryopteridaceae reference. Results The results supported our hypotheses [Mn] higher forests China compared P-richer China, even though Additionally, observed with high Guangxi (82%) than Gansu (42%). Conclusion Our findings suggest potential common strategy among plants forests, where are released limitation, possibly ineffective mycorrhizal symbiosis nutrient acquisition. diverse systems exhibit varying availability, leading evolution distinct P-acquisition strategies.

Language: Английский

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The impact of grazing exclusion on phosphorus dynamics in alpine grassland ecosystems

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Effect of elevation on soil quality under bamboo (Bambusa teres Buch.-Ham. ex Munro) stands outside forest areas in Eastern Nepal

Advances in Bamboo Science, Journal Year: 2025, Volume and Issue: unknown, P. 100149 - 100149

Published: March 1, 2025

Language: Английский

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Opportunities and implementation pathway for China’s forestry development under the “Dual Carbon” strategy

Carbon Research, Journal Year: 2024, Volume and Issue: 3(1)

Published: July 1, 2024

Abstract The “Dual Carbon” initiative is a two-stage carbon reduction goal proposed by China, with significant implications for global climate change mitigation. This article examines the impact of strategy on China's forestry development and explores how to leverage this facilitate transformation advancement sector. Current review indicated that has advantage achieving higher emission targets at low cost. Starting an overview strategy, paper analyzes sequestration potential plants soil, challenges opportunities faced under framework. Furthermore, we outline implementation pathways development, aiming provide insights progress Overall, it should be noted priority vigorously develop timber resources, also need protect talent support policies. By trapping into storage capabilities leveraging trading mechanisms forests, favorable ecological environment can created, thus neutrality.

Language: Английский

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Nitrogen-Fixing Plants Enhance Soil Phosphorus Availability by Promoting Transformations Among Phosphorus Fractions in a Subtropical Karst Forest

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 360 - 360

Published: Feb. 17, 2025

Nitrogen (N)-fixing plants are commonly employed in the restoration of degraded terrestrial ecosystems due to their ability increase soil N capital and boost ecosystem productivity. Given close coupling between phosphorus (P) soil, effects N-fixing on P fractions availability karst forests remain largely unexplored. Herein, we compared pools, fractions, rhizosphere non-rhizosphere soils non-N-fixing plants, explored associated drivers, such as microbial, plant properties, a subtropical forest. The results showed that increased total P, inorganic available both soils. nitrogen-fixing labile (LP) non-labile (NLP), but decreased moderately (MLP), particularly soils, transformations among different fractions. Soil were primarily influenced by root leaf N, microbial biomass treatment, whereas dissolved organic carbon (DOC), (DON) key factors treatment. Consequently, attributes, nutrients, collectively exerted direct indirect In contrast, directly properties indirectly Our revealed unique role driving forests. These findings essential for developing effective strategies nutrient management guiding selection appropriate species vegetation regions.

Language: Английский

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Soil quality improvement on Qinghai-Tibet Plateau induced by soil hydrothermal changes from 1980s to 2020s

Geoderma, Journal Year: 2025, Volume and Issue: 455, P. 117235 - 117235

Published: March 1, 2025

Language: Английский

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Effects of different mulching measures on soil physicochemical properties and phosphorus fractions in orchards in the southeast hilly region of China

Plant Soil and Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Language: Английский

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