Short-term robust plant overcompensatory growth was observed in a degraded alpine meadow on the southeastern Qinghai-Tibetan Plateau

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170607 - 170607

Published: Feb. 7, 2024

Language: Английский

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Effects of drought pretreatment on the morphology traits, biomass, and stoichiometric characteristics of the desert ephemeral plant

Frontiers in Genetics, Journal Year: 2025, Volume and Issue: 16

Published: March 20, 2025

Introduction: In the context of climate change, frequency and intensity droughts in arid semi-arid areas have shown a substantially increasing trend, which inevitably affects plant survival growth. However, it is unclear what growth strategies plants subjected to drought pretreatment early life stages adopt when facing subsequent stress. Methods: Here, we conducted field experiment set up two treatments, control pretreatment, investigate effects on survival, phenology, morphology, biomass, stoichiometric characteristics ephemeral Erodium oxyrhinchum Gurbantunggut Desert, China. Results: The results showed that leafing, flowering, fruiting under occurred markedly earlier than treatment by 5.25 ± 1.2 d, 3.13 0.84 4.75 1.63 respectively. history E. decreased 5 1.38 d pretreatment. Drought accelerated seedling mortality, leading faster decline percentage. percentage at full blooming stage was approximately 18.59%, 5.19% higher treatment. addition, positive correlation observed between morphological traits individual increased biomass reproductive output. For example, 1.41 times during stage, indicating exhibited an overcompensation effect. Finally, from perspective characteristics, require more phosphorus enhance their resistance severe drought. Conclusion: This study provides novel insights for conservation restoration desert ecosystems change.

Language: Английский

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Leaf Nitrogen and Phosphorus Stoichiometry and Its Response to Geographical and Climatic Factors in a Tropical Region: Evidence from Hainan Island

Agronomy, Journal Year: 2023, Volume and Issue: 13(2), P. 411 - 411

Published: Jan. 30, 2023

Leaf stoichiometry effectively indicates the response and adaptation of plants to environmental changes. Although numerous studies on leaf patterns have focused mid-latitudes specific species plants, these effect climate change them across a broad range remained poorly characterized in hot humid regions at low latitudes. In present study, N, P, N:P, C:N, C:P ratios, were determined from 345 plant samples 268 four forest sites Hainan Island, China. For all N (3.80 ± 0.20 mg g−1) P (1.82 0.07 negatively correlated with latitude mean annual temperature (MAT) but positively longitude. was found be altitude (ALT), precipitation (MAP). The C:N ratio (278.77 15.86) significantly longitude ALT, (390.69 15.15) factors except N:P (2.25 0.10) MAT, MAP. Comparable results observed for woody plants. suggest that Island is affected by changes geographical climatic factors. addition, growth may limited availability. Moreover, significant correlation between implies possible synergistic relationship uptake efficiency this region. This study helps reveal spatial their global variety tropical environments, which provide an insight nutrient management rainforest.

Language: Английский

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Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Land Degradation and Development, Journal Year: 2024, Volume and Issue: 35(7), P. 2591 - 2601

Published: March 5, 2024

Abstract Grasping how climate change will affect the tropical region's leaf potassium, calcium, and magnesium content is pivotal for enhancing our comprehension of plant stoichiometry. Currently, there limited research on in plants, which particularly evident with increasing importance rainforest biodiversity studies. This study investigated impact geographical climatic factors 346 plants (including woody herbs, vines) Hainan Island. The findings demonstrated that average contents were 5.77, 11.86, 2.92 mg·g −1 , respectively, less than Chinese flora. Mean annual precipitation (MAP) has a promoting effect potassium ( p < 0.05), suggesting artificial fertilization needed due to MAP. Leaf positively correlated latitude 0.05) longitude 0.01); was negative correlation between calcium showing have significant leaves. Additionally, variables regulating varied across vines. Therefore, it necessary make corresponding adjustments according local conditions functional types during nutrient management. In conclusion, this sheds light their potential responses global changes instrumental informing management these nutrients plants.

Language: Английский

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Stoichiometric characteristics of leaf, branch and root in <i>Larix gmelinii</i> in response to climate warming based on latitudinal transplantation

Chinese Journal of Plant Ecology, Journal Year: 2024, Volume and Issue: 48(4), P. 469 - 482

Published: Jan. 1, 2024

Aims Exploring the impact of climate warming on stoichiometric characteristics trees is significance for better understanding response mechanism to change.Methods In 2004, we conducted a common garden experiment by transplanting Larix gmelinii from four provenances near warm edge this species' range in Mao'ershan Ecological Station China, order measure concentrations carbon (C), nitrogen (N) and phosphorus (P) leaves short branch, long branches, fine roots at three diameter classes warming.Important findings The C, N, P branch all classes, N old significantly differed among provenances.The high latitude sites were characterized lower C higher concentration compared those low sites.Warming treatment increased organs (except root 1-2 mm diameter), also leaves, branches <1 diameter, branches).The effect decreased with increasing warming, but concentration.The C:N, C:P N:P branches) varied had C:N

Language: Английский

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Plant Functional Traits Modulate Effects of Drought on C:N:P Stoichiometry of Plant, Litter, and Soil Microbe in an Arid Grassland

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Language: Английский

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Effects of increased phosphorus fertilizer on C, N, and P stoichiometry in different organs of bluegrass (Poa L.) at different growth stages

Frontiers in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 11

Published: April 17, 2023

Introduction The application of phosphorus (P) fertilizer can promote photosynthesis in forage grasses and accelerate their establishment. Methods To improve the utilization efficiency P for bluegrass (Poa L.) alpine regions, effects on growth, carbon (C), nitrogen (N) distribution different organs them are tested at six fertilization levels (3, 6, 9, 12, 15, 18 g·m −2 ). Results (1) nutrient content each organ varies during growth stages, with lowest occurring wilt stage. (2) response ratio to varies. When rate was 15 , contents N roots were highest, C/N C/P ratios lowest. 12 stems 9 leaves 6 panicle Discussion These results provide a better understanding effect partitioning pattern perennial plant regions. information from this study support more reasonable establishment early grassland. For example, artificial grassland, low-concentration (6~9 ) spikes grass; ecological management, high-concentration (15 enhance benefits

Language: Английский

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Contrasting effects of plant above- and below-ground functional traits on ecosystem services in artificial forestlands and natural grasslands across vegetation zones

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

Published: Dec. 5, 2024

Language: Английский

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Plant Community Characteristics and Responses of C, N, and P to Different Water Gradients in Northern Tibetan Plateau

Journal of soil science and plant nutrition, Journal Year: 2023, Volume and Issue: 24(1), P. 483 - 496

Published: Dec. 6, 2023

Language: Английский

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