The Effects of Nutrient and Water Use Efficiency on Plant Species Diversity in the Understory of Broad-Leaved Evergreen Forests

Diversity, Journal Year: 2025, Volume and Issue: 17(3), P. 157 - 157

Published: Feb. 25, 2025

The factors driving plant species diversity in different forest types and layers are still insufficiently understood. Therefore, we investigated the limiting of nutrient water use efficiency three (arbor, shrub herb layers) two (plantation natural forest), as well their potential relationship with diversity. study area is located mid-latitude evergreen broad-leaved ecosystems southern Anhui province. nitrogen content soil (2.90 g kg−1) exceeded national average for (1.06 kg−1), whereas phosphorus (0.43 was below such (0.65 kg−1). arbor layer comparatively low, exerted a more substantial influence on it. In contrast, had most significant impact layers. conclusion, has little effect growth patterns this area, while there role regulating succession rates. There phenomenon excessive deposition loss ecosystem. Despite fact that indices (the Pielou Evenness Index, Gleason Richness Shannon–Wiener Diversity Index Simpson Dominance Index) forests were higher than plantation forests, disparity between them not (p > 0.05). This may be due to similar climate. findings research hold significance forecasting alterations diversity, functionality, influencing within forests.

Language: Английский

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Linking Soil Properties and Bacterial Communities with Organic Matter Carbon During Vegetation Succession

Plants, Journal Year: 2025, Volume and Issue: 14(6), P. 937 - 937

Published: March 17, 2025

Land use change driven by vegetation succession significantly enhances soil carbon storage, yet the microbial mechanisms underlying this process remain poorly understood. This study aims to elucidate mechanistic linkages between bacterial community dynamics and organic matter stabilization across four stages on Loess Plateau: abandoned farmland (AF), grassland stage (GS), shrub-land (SS), forest (FS). We analyzed (SOM_C) fractions, physicochemical properties, communities (16S rRNA sequencing), employing structural equation modeling quantify causal pathways. The results showed that content of total (TOM_C), labile (LOM_C), dissolved (DOM_C), biomass (MBC) increased progressively with succession, peaking in FS, 23.87 g/kg, 4.13 0.33 mg/kg, 0.14 respectively. Furthermore, also led heterogeneity structure. number operational taxonomic units (OTUs) for was 9966, 13,463, 14,122, 10,413, showcasing highest OTUs. Nine taxa were strongly correlated SOM_C stabilization. Affected bacteria, properties litter directly influence SOM_C, pathway (path coefficient: 0.792, p < 0.001) having a greater impact than 0.221, 0.001). establishes not only through inputs but reshaping toward stabilize via interactions.

Language: Английский

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Exploring Litter Decomposition, Nutrient Retention, and Sensitivity to Nitrogen Deposition Among Ancient and Recently Evolved Tree Species

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

ABSTRACT Investigating the differences among plant functional types (PFTs) and their responses to N deposition is crucial for predicting carbon nutrient cycles improving forest management strategies. Our research aimed examine decomposition rates loss of leaf litter fine roots from ancient recently evolved species response deposition. We hypothesized that (1) leaves tree decomposes slower than those due higher C:N ratios structural compound content; (2) effect addition on differs across different stages influenced by associated PFT; (3) morphology substrate quality are key predictors both species. Field experiments were conducted with under control N‐addition treatment (10 g·m −2 ·a −1 ), focusing three The rate constants ( k values) lower species, values 1.01 1.68 conditions, 1.07 1.08 addition. For roots, had only (1.05 1.40), whereas no significant observed between conditions. Furthermore, residual in was compared controls, while such distinct patterns this study provide valuable insights into complexity deposition, highlighting importance considering PFTs organ ecosystem responses.

Language: Английский

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Natural grassland restoration exhibits enhanced carbon sequestration and soil improvement potential in northern sandy grasslands of China: An empirical study

CATENA, Journal Year: 2024, Volume and Issue: 246, P. 108396 - 108396

Published: Sept. 12, 2024

Language: Английский

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Response of soil water, salt, carbon and bacteria community to terrain and plant in coastal salt marsh

Estuarine Coastal and Shelf Science, Journal Year: 2024, Volume and Issue: 298, P. 108652 - 108652

Published: Jan. 23, 2024

Language: Английский

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Different regulatory mechanisms on carbon-degrading enzyme activities under short-term litter input manipulations in subalpine coniferous and broad-leaved forest soils

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 196, P. 109512 - 109512

Published: July 3, 2024

Language: Английский

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Mechanisms of litter input changes on soil organic carbon dynamics: a microbial carbon use efficiency-based perspective

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 175092 - 175092

Published: July 28, 2024

Language: Английский

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The distribution and driving mechanism of soil inorganic carbon in semi-arid and arid areas: A case study of Alxa region in China

CATENA, Journal Year: 2024, Volume and Issue: 247, P. 108475 - 108475

Published: Oct. 22, 2024

Language: Английский

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Impact of Fertilizers Application on Leaf Litter Decomposition and Nutrient Cycling in White Poplar ( Populus alba L .) Forest Ecosystem

Forest Science and Technology, Journal Year: 2024, Volume and Issue: 20(3), P. 231 - 243

Published: May 20, 2024

Fertilizer application plays a crucial role in the decomposition of white poplar leaf litter and cycling nutrients within forest ecosystems. The impact various fertilizer additions on nutrient is poorly understood. In this study, seven treatments were conducted at following levels: Control (CK), no adding mineral fertilizers, N fertilization (+N), P (+NP), N, P, K (+NPK), (+PK), manure (+MF), bird fertilizers (+BF) plantation Qadis district, used litterbag techniques to measure mass remaining. main objectives our study were: (1) explore response accelerate process; (2) examine relationship between C, concentration their stoichiometric characteristic soil. investigation, results showed that was significantly affected by process greatly accelerated with + MF, +NPK, BF. decay rate constant k (year −1) shows as follows: +MF > +NPK +BF +PK +NP +N CK (0.56, 0.53, 0.52, 0.51,0.51,0.5, 0.46). Soil increased during time BF, respectively, while C:N, C:P, N:P ratios highest litter, lowest soil, we observed significant association concentrations soil stoichiometric. This current concluded BF might be preferred management option they provided potentially beneficial changes concentration. data obtained will valuable reference for strategies

Language: Английский

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Contribution of Litter and Root to Soil Nutrients in Different Rocky Desertification Grasslands in a Karst Area

Plants, Journal Year: 2024, Volume and Issue: 13(16), P. 2329 - 2329

Published: Aug. 21, 2024

Litter and root decomposition is an important source of soil organic matter nutrients. To ascertain the contribution litter to natural grassland nutrients in rocky desertification areas, from March 2017 January 2018, continuous column method, collector method were used study nutrients, biomass, decomposition, nutrient release potential, moderate, severe grasslands, as well their responses desertification. The results showed that rate a trend being first fast then slow, was greater than 50% after 300 days. annual rates grasslands 69.98%, 62.14%, 49.79%, respectively, 73.64%, 67.61%, 64.09%, respectively. With deepening degree desertification, decreased. coefficients,

Language: Английский

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