Stoichiometric Characteristics of Abies georgei var. smithii Plants in Southeast Tibet DOI Open Access

Yueyao Li,

Fangwei Fu, Jiangrong Li

et al.

Sustainability, Journal Year: 2023, Volume and Issue: 15(11), P. 8458 - 8458

Published: May 23, 2023

In order to elucidate the adaptation mechanisms of stoichiometric characteristics Abies georgei var. smithii in southeastern Tibet different habitats, spatial and temporal dynamics nutrient contents ratios among leaf, branch, stem, root organs were analyzed on Sejila Mountain at elevations (3500 m, 3900 4300 m). The results show that (1) C K fir did not change significantly with increasing elevation same season, while N P showed an overall trend elevation, being highest leaves. distribution was leaves > branches roots stem; content each organ stem. (2) At seasons, a similar convergence terms storage utilization strategies, more nutrients optimally allocated between assimilated stored alpine which represents “trade-off” strategy. (3) Compared findings global-scale studies, this study area has low N, P, contents, its growth is limited by both P. Due physiological balance constraints, N-limited elements plants relatively stable, line “limiting element stability hypothesis”. (4) Principal component analysis influence environmental factors had scale effect, demonstrated increased accumulation when subjected stress, promoted domestication plant, enabling it good capacity strategies even high elevation; thus, become pioneer tree species elevations. This research work shows resilient smithiir led differences uptake use efficiency patterns altitudinal gradients, adapting habitat changes adjusting strategy habitats.

Language: Английский

Review on characteristics and main hypotheses of plant ecological stoichiometry DOI Open Access
Di Tian, Zhengbing Yan, Jingyun Fang

et al.

Chinese Journal of Plant Ecology, Journal Year: 2021, Volume and Issue: 45(7), P. 682 - 713

Published: Jan. 1, 2021

Plant ecological stoichiometry, as a branch of focuses on the study elemental content, ratios and relationships within across plant organs, underlying biotic abiotic drivers.In 19th century, chemists detected contents in organs via laboratory experiments, sprouting exploration stoichiometric characteristics.Nowadays, ecologists have explored characteristics their responses to global changes with functional traits, using both field investigation manipulative experiments.These sustained efforts largely enriched knowledge understanding stoichiometry.In this paper, we briefly introduced history reviewed research progresses stoichiometry since century.Firstly, proposed developmental three main periods: sprouting, hypothesis foundation, theoretical construction periods, some representative works for each period.Secondly, overviewed life forms environmental gradients.The geometric mean values leaf nitrogen (N) phosphorus (P) N:P mass terrestrial plants are 18.74 mg•g -1 , 1.21 15.55 (i.e.similar Redfield ratio 16:1), respectively.Leaf N P at either species or community level generally show decreasing trend increasing temperature precipitation, large variations among forms, higher herbaceous than woody plants, deciduous broad-leaved evergreen coniferous plants.Compared leaves, fine roots other remain poorly documented.Thirdly, effects nutrient addition characteristics.In general, increases soil availability, then content thus leading an increase productivity extents.P might alleviate imbalance induced by excessive inputs, content.However, long-term fertilization could perturb intrinsic resulting deteriorated tissues subsequent decline productivity.Fourthly, hypotheses stoichiometry.These include function-associated hypotheses, environment-associated evolution-associated which delineate growth functions, factors evolutionary history, respectively.Finally, made outlook future area highlighted ten potential important themes.

Language: Английский

Citations

59
Phosphorus additions imbalance terrestrial ecosystem C:N:P stoichiometry DOI
Yuan Sun, Cuiting Wang, Xinli Chen

et al.

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(24), P. 7353 - 7365

Published: Sept. 3, 2022

Abstract Carbon (C):nitrogen (N):phosphorus (P) stoichiometry in plants, soils, and microbial biomass influences productivity nutrient cycling terrestrial ecosystems. Anthropogenic inputs of P to ecosystems are increasing; however, our understanding the impacts addition on ecosystem C:N:P ratios remains elusive. By conducting a meta‐analysis with 1413 paired observations from 121 publications, we showed that significantly decreased plant, soil, N:P C:P ratios, but had negligible effects C:N ratios. The reductions became more evident as application rates experimental duration increased. did not vary types or climates. Moreover, responses soil were associated pH fungi:bacteria Additionally, additions increased net primary productivity, biomass, respiration, N mineralization, nitrification, ammonium nitrate contents. Decreases plant both negatively correlated positively contents; contents, contents all declining Our findings highlight could imbalance potentially impact functions.

Language: Английский

Citations

54
Effect of vegetation restoration on soil erosion control and soil carbon and nitrogen dynamics: A meta-analysis DOI
Ruizhe Yang, Shilong Yang, Lanlan Chen

et al.

Soil and Tillage Research, Journal Year: 2023, Volume and Issue: 230, P. 105705 - 105705

Published: March 28, 2023

Language: Английский

Citations

20
Ecological Stoichiometric Characteristics in Organs of Ammopiptanthus mongolicus in Different Habitats DOI Creative Commons
Dong Xue, Jinbo Zhang, Zhiming Xin

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(2), P. 414 - 414

Published: Jan. 16, 2023

The essence of plant ecological stoichiometry is to study the relationships between species and their environment, including nutrient absorption, utilization cycling processes as well limitation plants. Plants can regulate elements adapt environmental changes. To understand adaptation mechanism, it important take plants a whole quantify correlation chemometrics different organs. Ammopiptanthus mongolicus within second-class group rare−endangered in China only evergreen broad-leaved shrub desert areas. We analyzed stoichiometric characteristics leaves, stems, roots, flowers seeds A. five habitats, namely fixed sandy land, semi-fixed stony−sandy alluvial gravel slope saline−alkali land. found that (1) contents N, P K were order seed > flower leaf root stem. enrichment reproductive organs promoted transition from vegetative growth growth. Additionally, (2) C, ratios varied among habitat types. storage capacity N was higher soil (fixed land), whereas content gravelly (stony−sandy land slope), C:N, C:P N:P significantly than those soil. had use efficiency slope. Furthermore, (3) C:N each organ relatively stable K:P ratio greatly. leaves all greater 16 indicating mainly limited by P. Moreover, (4) except for element, element its affected interaction habitat. Habitat impact on C content, influence C:P, C:K N:P.

Language: Английский

Citations

15
Carbon, Nitrogen and Phosphorus Stoichiometry and Its Influencing Factors in Karst Primary Forest DOI Open Access
Chen Zhang, Fuping Zeng,

Zhaoxia Zeng

et al.

Forests, Journal Year: 2022, Volume and Issue: 13(12), P. 1990 - 1990

Published: Nov. 25, 2022

The stoichiometric characteristics of C, N, and P in plants result from long-term adaptation to environmental conditions. In this study, we analyzed leaf, branch, soil stoichiometry a karst primary forest plant community China. results showed that N content leaves was higher than branches, while C the latter leaves. Moreover, coefficient variation branches greater but there no significant difference said coefficients soil. values C:N C:P ratios were both branch > leaf soil, whereas value N:P ratio There also positive correlation between nitrogen (LN), phosphorus (LP), (BN), (BP) concentrations carbon (LC), (BC), other element concentrations. We found strongly influenced by species diversity, mainly diversity; factors influencing altitude, pH, total P. Finally, these are relevant as they helpful understand mechanisms eco-geochemical processes can provide scientific basis for vegetation restoration reconstruction degraded ecosystems.

Language: Английский

Citations

19
C, N, P, K stoichiometric characteristics of the “leaf-root-litter-soil” system in dryland plantations DOI Creative Commons
Yage Li, Xiaoxue Dong, Wenxiu Yao

et al.

Ecological Indicators, Journal Year: 2022, Volume and Issue: 143, P. 109371 - 109371

Published: Aug. 28, 2022

Plantation's nutrient cycling can regulate and affect the material of ecosystems, which is key to maintain sustainable development plantation ecosystem. However, current understanding characteristics "leave-root-litter-soil" continuum dryland ecosystems limited. Therefore, in Longzhong Loess Plateau China, we selected nine typical plantations carry related research, including two evergreen (Platycladus orientalis (13-years 50-years) Pinus tabuliformis) four deciduous (Caragana korshinskii (13-years, 35-years 55-years), Armeniaca sibirica, Populus hopeiensis Tamarix chinensis) tree species, measured C, N, P K contents green leaves, fine roots, leaf litter surface soil (0–20 cm). Results showed species afforestation years strongly changed ratios components, also significantly affected reabsorption efficiencies. The average components available nitrogen (AN), phosphorus (AP) potassium (AK) were higher than those plantations, resulting lower C:N:P:K stoichiometry plantations. Especially 55-years C. plantation, its AN, AP AK A. P. hopeiensis, tabuliformis Moreover, P, increased with increase years. Thus, was more suitable for ecological restoration drylands. Due limitation efficiency N efficiency, negatively correlated components. And leaves had homeostasis AP, may be utilization strategies alleviate limitation. Correlation analysis revealed that C appeared leave-fine root leave-leaf litter, litter-soil-fine root, litter- litter-fine root. These results will provide guidance management

Language: Английский

Citations

17
Potential Hypotheses Predicting the Patterns of Major Nutrients in Leaves on a Global Scale DOI Open Access
Yajun Xie, Zhihong Tan,

Xuesheng Xu

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(1), P. 80 - 80

Published: Jan. 6, 2025

Climatic force might sharpen the latitudinal gradients of foliar nutrients directly (the Temperature–Plant Physiological hypothesis) or indirectly (either through soil nutrient, Soil Substrate Age hypothesis, plant functional type (e.g., herbs and trees) composition, Species Composition hypothesis). However, validities, effectiveness, key drivers these hypotheses have not been further examined globally. Here, we tested by synthesizing data from 2344 observations leaf N, P, K in terrestrial plants. The results indicated that leaves enriched towards polar region. validity each hypothesis was confirmed, with exception failing to predict as climatic influence on N occurs a mechanism opposite what suggests. Additionally, among all hypotheses, most effective model for whereas P K. Soil, climate, collectively accounted over half variations nutrients. Specifically, nutrient strongest determinant K, N. Taking into account changes types will improve modeling biogeochemical cycles under climate change. We expect verification global investigations stoichiometry using uniform methods.

Language: Английский

Citations

0
Distinct seasonality of nutrients in twigs and leaves of temperate trees DOI Creative Commons

Yuehan Tian,

Enzai Du, Yang Tang

et al.

Tree Physiology, Journal Year: 2025, Volume and Issue: 45(3)

Published: Jan. 30, 2025

Abstract Seasonal variation of nutrient concentrations in different organs is an essential strategy for temperate trees to maintain growth and function. The seasonal variations variability (i.e., seasonality) leaf have been well documented, while the trends magnitudes such other tree (e.g., twigs) their associations with nutrients remain poorly understood. We measured 10 (nitrogen, N; phosphorus, P; potassium, K; calcium, Ca; magnesium, Mg; iron, Fe; manganese, Mn; copper, Cu; zinc, Zn; boron, B) twigs leaves four species Pinus tabuliformis, Ginkgo biloba, Cotinus coggygria, Sophora japonica) explore seasonality. Our results showed that macronutrient (N, P, K, Ca, Mg) were significantly higher micronutrient (Fe, Mn, Cu, Zn) twigs. Concentrations P K both a negative covariation between leaves, Fe, Zn, B opposite relationship. Compared mobile nutrients, nonmobile exhibited greater seasonality but there no differences was stronger than they positively correlated. Additionally, physiological requirements weaker seasonality, confirming hypothesis stability high-demand relationships not statistically significant This study demonstrates distinct woody plants. These findings highlight show uncover coordination as conservation strategy.

Language: Английский

Citations

0
Nutrient and Stoichiometric Characteristics of Various Organs in Three Typical Desert Plants from Extreme Desert Ecosystems DOI
Yi Du, Yulin Zhang, Zhihao Zhang

et al.

Rhizosphere, Journal Year: 2025, Volume and Issue: unknown, P. 101025 - 101025

Published: Feb. 1, 2025

Language: Английский

Citations

0
Leaf Nutrient Resorption of Vascular Epiphytes Is Regulated by Stoichiometry and Nutrient Limitation Control Strategies DOI Open Access
Yan Liu, Wei Sun,

Tao Jia

et al.

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

ABSTRACT Nitrogen (N) and phosphorus (P) resorption are assumed to be crucial for epiphyte growth in nutrient‐poor canopies, yet remain poorly understood due unique habitats limited access. We examined the N, P 15 N natural abundance mature senesced leaves of 10 vascular species southwest subtropical China, integrating data from a previous study tropical lowland forest. found that epiphytes experienced N‐limitation, likely because high availability, making relatively scarce. The mean efficiencies per leaf unit were 63.1% 67.7%, with 14.7% 12% higher than those on mass, 3.9% 3.8% area. combination strategy analysis, generalized linear models variance decomposition revealed combinedly regulated by stoichiometry nutrient limitation control strategies, while employed either combined strategies or alone. Notably, functional group type strongly influenced resorption. Leaf δ reflected species‐specific variation, driven traits. Epiphytes terrestrial plants exhibit similar patterns, which help alleviate deficiencies support biodiversity forest canopies.

Language: Английский

Citations

0