Understory functional trait adaptation to climate change is primarily mediated by soil conditions under long-term afforestation on the Loess Plateau

The Evolution of Functional Traits in Plants: Is the Giant Still Sleeping?

The crown closure of Platycladus orientalis forests has a wide-ranging impact on vegetation and soil, thereby affecting the overall functioning of the ecosystem. There is limited research on the effects of the Platycladus orientalis forest crown closure on changes in community plant functional traits, and their interactions are not yet clear. Therefore, we investigated 50 plots of different types of Platycladus orientalis crown closure, and we measured the functional traits of nine shrub species and 68 herb species in 50 plots under five different densities of Platycladus orientalis forests in the Loess Plateau. The consequence of Pearson’s correlation analysis showed significant positive correlations between LC and LTD, LN and LP, LN and LNP, LN and LV, LN and H, LP and LV, LP and H, and SLA and LV (p < 0.05). LC was significantly negatively correlated with LP, LC with SLA, LC with LV, LN with LTD, LP with LNP, LP with LTD, and LTD with H (p < 0.05). Only the soil phosphorus content (SP) and soil water content (SWC) showed a significant positive correlation with multiple plant functional traits. The crown closure of Platycladus orientalis forests increased significantly, as did the plant functional features. Changes in the Platycladus orientalis forest crown closure significantly increased the LC, LV, LN, LP, and SLA in plant functional traits. An increase in Platycladus orientalis forest crown closure significantly increased the soil organic carbon (SC), soil phosphorus content (SP), soil nitrogen content (SN), soil water content (SWC), field capacity (FC), and soil porosity (PO). Based on a structural equation model, we found that, while changes in the Platycladus orientalis forest crown closure did not directly affect plant functional traits, they could indirectly influence these traits through soil factors, primarily the soil water content (SWC) and soil phosphorus content (SP) (p < 0.05). Additionally, the mechanisms of the Platycladus orientalis forest crown closure’s impact on different functional traits vary. The research results provide scientific elements for the ecological restoration of Platycladus orientalis forests on the Loess Plateau.

Grassland is the dominant vegetation type in the Loess Plateau, and grassland productivity and processes are limited by nitrogen (N) and phosphorus (P). Studies have shown that productivity would change following fertilization in the grassland. The response of productivity to fertilization mainly depends on the dominant species traits. Trait-based methods provide a useful tool for explaining the variations in grassland productivity following fertilization. However, the relative contribution of plant functional traits to grassland productivity under N and P addition in the Loess Plateau is not clear. We measured aboveground biomass (AGB) and leaf N content (LN), leaf P content (LP), leaf N/P ratio (LN/P), specific leaf area (SLA), leaf tissue density (LTD), leaf dry matter content (LDMC), and maximum plant height (Hmax) to study how these plant functional traits regulate the relative biomass of different species and grassland productivity following fertilization. Our results showed, that under different nutrient addition levels, the linkages between plant functional traits and the relative biomass of different species were different. Community AGB was positively related to community−weighted mean LN (CWM_LN), CWM_LN/P, CWM_SLA, and CWM_Hmax, but negatively related to CWM_LTD and CWM_LDMC. Dominant species traits largely determined grassland productivity, in line with the mass ratio hypothesis. These findings further highlight the close linkages between community-level functional traits and grassland productivity. Our study contributes to the mechanisms underlying biodiversity–ecosystem function relationships and has significance for guiding semiarid grassland management.

In citrus, the majority of fine roots are distributed near the soil surface – a region where conditions are frequently dry and temperatures fluctuate considerably. To develop a better understanding of the relationship between changes in soil conditions and a plant’s below‐ground respiratory costs, the effects of temperature and soil drying on citrus root respiration were quantified in controlled greenhouse experiments. Chambers designed for measuring the respiration of individual roots were used. Under moist soil conditions, root respiration in citrus increased exponentially with changes in soil temperature (Q10 = 1·8–2·0), provided that the changes in temperature were short‐term. However, when temperatures were held constant, root respiration did not increase exponentially with increasing temperatures. Instead, the roots acclimated to controlled temperatures above 23 °C, thereby reducing their metabolism in warmer soils. Under drying soil conditions, root respiration decreased gradually beginning at 6% soil water content and reached a minimum at <2% soil water content in sandy soil. A model was constructed from greenhouse data to predict diurnal patterns of fine root respiration based on temperature and soil water content. The model was then validated in the field using data obtained by CO2 trapping on root systems of mature citrus trees. The trees were grown at a site where the soil temperature and water content were manipulated. Respiration predicted by the model was in general agreement with observed rates, which indicates the model may be used to estimate entire root system respiration for citrus.

PDF HTML阅读 XML下载 导出引用 引用提醒 西藏草地植物功能性状与多项生态系统服务关系 DOI: 10.5846/stxb201404160738 作者: 作者单位: 中国科学院地理科学与资源研究所,中国科学院地理科学与资源研究所,西藏自治区高原生物研究所,中国科学院地理科学与资源研究所,中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,西藏大学农牧学院,中国科学院地理科学与资源研究所 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学青年基金(31200364);国家科技支撑计划项目(2011BAD17B05);"西部之光"人才培养计划项目(20100309);西藏生态专项(Z2012C07G03) The relationship between plant functional traits and multiple ecosystem services in a Tibetan grassland ecosystem Author: Affiliation: Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Tibet Plateau Institute of Biology,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences Beijing,,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:针对植被功能性状与生态系统服务功能之间的相互关系,构建了西藏草地株高和可食性两种功能性状的9项指标,并基于土壤和植物采样,分析了9项植物功能性状指标和5项生态系统服务指标间的相关性,探讨了4种机制(Mass ratio, Selection, Niche complementarity及Insurance)在西藏草地的适用性。结果表明,9项功能性状指标中,株高Rao和可食种与所有种株高CWM比分别与土壤有机碳、土壤全氮和土壤含水率3项生态系统服务指标呈显著负相关及显著正相关。说明群落植被对光能竞争的互补性及可食性状植株在群落中的光能资源相对竞争力,与土壤固碳、肥力供给及水源涵养有显著相关关系。而群落可食种、优势种、优势种与次优势种对光能资源竞争力水平,可食植株多样性、可食植株在群落中的优势度及其光能资源竞争力均值,对草地生态系统服务无显著影响。西藏草地植物功能性状对多项生态系统服务的影响机制从光能资源竞争角度更符合Niche complementarity和Insurance理论,而从可食功能性状角度更符合Mass ratio和Selection理论。 Abstract:We studied the relationships among plant functional traits and multiple ecosystem services. Nine indicators of plant functional traits of plant heights and palatability were established, which were Rao index of plant heights, the community weighted mean value (CWM) of plant heights of all species, the CWM of plant heights of dominant species, the CWM of plant heights of dominant and subdominant species, the richness of palatable plants, the richness ratio of palatable species to all species, the ratio of palatable biomass to total biomass, the CWM of plant heights of palatable species, and the CWM of the ratio of heights of palatable plants to all plant species. The ecosystem services we analyzed included forage supply, soil carbon stocks, soil fertilization supply, water regulation, and soil retention. Further, we attempted to test four candidate mechanisms by which plant functional traits influence ecosystem services. These were:1) mass ratio, 2) selection, 3) niche complementarity, and 4) insurance. In 2012, we collected soil and vegetation samples from Xincang village, Lhasa, Tibet. Ecosystem services and plant functional traits were quantified based on these samplings. Pearson correlations were calculated among the nine functional traits, as well as between the functional traits and ecosystem services. The results showed that among the functional traits, the Rao index of plant heights was significant negatively correlated with soil organic carbon, soil total nitrogen, and soil water content. The ratio of the CWM of the heights of palatable plants to all plant species was significant positively correlated with soil organic carbon, soil total nitrogen, and soil water content. However, the CWM of the plant heights of all species, palatable species, dominant species, dominant and subdominant species, as well as the richness of palatable species, the ratio of the palatable specie richness to all species, and the ratio of palatable biomass to all species, were not significantly correlated with any of the ecosystem services. Our results demonstrated that the niche complementarity of the light captures of the plant community has negative impacts on ecosystem soil carbon stock, fertilization provisioning, and water regulating services. However, the relative niche competitiveness of light captures of palatable plants in the community has positive impacts on ecosystem soil carbon stock, fertilization provisioning, and water regulating services. The results imply, from the perspective of resource competitiveness, the concepts of niche complementarity and insurance best characterize the mechanisms by which plant functional traits determine ecosystem services in grassland. However, from the perspective of palatability, the concepts of mass ratio and selection are more reasonable. 参考文献 相似文献 引证文献

Functional traits explaining plant responses to past and future climate changes

Plant communities in the Loess Plateau's artificial afforestation forests play an important role in fragile ecosystem restoration. Therefore, the composition, coverage, biomass, diversity, and similarity of grassland plant communities in different years of artificial afforestation in cultivated land were investigated. The effects of years of artificial afforestation on grassland plant community succession in the Loess Plateau were also investigated. The results showed that as the number of years of artificial afforestation increased, grassland plant communities grew from scratch, constantly optimizing community components, improving community coverage, and increasing aboveground biomass. The community diversity index and similarity coefficient gradually approached those of a 10-year abandoned community that had recovered naturally. After 6 years of artificial afforestation, the dominant species of the grassland plant community changed from Agropyron cristatum to Kobresia myosuroides, and the main associated species changed from Compositae and Gramineae to Compositae, Gramineae, Rosaceae, and Leguminosae. The α-diversity index accelerated restoration, the richness index and diversity index increased, and the dominant index decreased. The evenness index had no significant difference from CK. The β-diversity index decreased as the number of years of afforestation increased. The similarity coefficient between CK and grassland plant communities in various lands changed from medium dissimilarity to medium similarity at 6 years of afforestation. According to the analysis of various indicators of the grassland plant community, the grassland plant community had a positive succession within 10 years of artificial afforestation on the cultivated land of the Loess Plateau, and the threshold of the years from slow to fast was 6 years.

Plants adopt a variety of life history strategies to succeed in the Earth's diverse environments. Using functional traits which are defined as “morphological, biochemical, physiological, or phonological” characteristics measurable at the individual level, plants are classified according to their species’ adaptative strategies, more than their taxonomy, from fast growing plant species to slower‐growing conservative species. These different strategies probably influence the input and output of carbon (C)‐resources, from the assimilation of carbon by photosynthesis to its release in the rhizosphere soil via root exudation. However, while root exudation was known to mediate plant‐microbe interactions in the rhizosphere, it was not used as functional trait until recently. Here, we assess whether root exudate levels are useful plant functional traits in the classification of plant nutrient‐use strategies and classical trait syndromes? For this purpose, we conducted an experiment with six grass species representing along a gradient of plant resource‐use strategies, from conservative species, characterized by low biomass nitrogen (N) concentrations and a long lifespans, to exploitative species, characterized by high rates of photosynthesis and rapid rates of N acquisition. Leaf and root traits were measured for each grass and root exudate rate for each planted soil sample. Classical trait syndromes in plant ecology were found for leaf and root traits, with negative relationships observed between specific leaf area and leaf dry matter content or between specific root length and root dry matter content. However, a new root trait syndrome was also found with root exudation levels correlating with plant resource‐use strategy patterns, specifically, between root exudation rate and root dry matter content. We therefore propose root exudation rate can be used as a key functional trait in plant ecology studies and plant strategy classification.

Simple SummaryIt is an important objective of ecological restoration to select suitable plant species in order to construct plant communities and achieve certain soil and water conservation capacities. Using species functional traits to construct a response-and-effect framework is a promising method for determining how species in changing environments will influence ecosystem functions. Here, we investigated plant functional traits, soil properties, and ecohydrological functions for the most common vegetation restoration types in mid-Yunnan, China, and used seven plant functional traits to identify seven plant functional effect types in relation to soil and water conservation capacity, and two plant functional response types to soil physicochemical properties. The results indicated that specific leaf area was the key trait not only for functional effect types, but also for functional response types. In addition, eight overlapping species between plant functional response types and functional effect types were selected as the key restoration species. These results provide a methodological guide for species selection for recovery, as well as a species inventory for the restoration of degraded ecosystems in this region.Great efforts have been made to improve the soil and water conservation capacity by restoring plant communities in different climatic and land-use types. However, how to select suitable species from local species pools that not only adapt to different site environments, but also achieve certain soil and water conservation capacities is a great challenge in vegetation restoration for practitioners and scientists. So far, little attention has been paid to plant functional response and effect traits related to environment resource and ecosystem functions. In this study, together with soil properties and ecohydrological functions, we measured the seven plant functional traits for the most common species in different restoration communities in a subtropical mountain ecosystem. Multivariate optimization analyses were performed to identify the functional effect types and functional response types based on specific plant traits. We found that the community-weighted means of traits differed significantly among the four community types, and the plant functional traits were strongly linked with soil physicochemical properties and ecohydrological functions. Based on three optimal effect traits (specific leaf area, leaf size, and specific root length) and two response traits (specific leaf area and leaf nitrogen concentration), seven functional effect types in relation to the soil and water conservation capacity (interception of canopy and stemflow, maximum water-holding capacity of litter, maximum water-holding capacity of soil, soil surface runoff, and soil erosion) and two plant functional response types to soil physicochemical properties were identified. The redundancy analysis showed that the sum of all canonical eigenvalues only accounted for 21.6% of the variation in functional response types, which suggests that community effects on soil and water conservation cannot explain the overall structure of community responses related to soil resources. The eight overlapping species between the plant functional response types and functional effect types were ultimately selected as the key species for vegetation restoration. Based on the above results, we offer an ecological basis for choosing the appropriate species based on functional traits, which may be very helpful for practitioners involved in ecological restoration and management.

As an important means of curbing soil degradation, afforestation has a profound impact on regional soil properties and quality. However, it is still unclear regarding how to conduct a systematic assessment of soil properties and soil quality and the impact of vegetation characteristics and plant functional traits in leguminous plantations with different afforestation years in drylands. Therefore, we investigated the vegetation characteristics and determined the functional traits of leaves and roots and the soil physicochemical properties of Caragana korshinskii plantations with 13, 35, and 55 years. The results showed that tree height; crown diameter (CD); root dry matter content; root water content; soil clay, silt, and sand contents; bulk density (BD); soil water content; soil organic carbon (SOC); total nitrogen (TN); available nitrogen; total phosphorus (TP); available phosphorus (AP); and soil quality index (SQI) changed significantly with an increase in afforestation years. Although the specific leaf area did not show a significant variation, it had a significant negative effect on soil properties and SQI, except for soil sand and BD. Soil sand and BD decreased with the afforestation succession, but the succession pattern of soil clay, silt, SOC, TN, TP, and AP was 13 years < 35 years < 55 years, and SQI increased from 0.20 (13 years) to 0.77 (55 years). This indicated that long-term legume afforestation led to the transformation of soil texture from silty loam to silt and significantly improved the soil properties and quality in the study area.

Leaf phenology rather than mycorrhizal type regulates soil nematode abundance, but collectively affects nematode diversity in seven common subtropical tree species

PDF HTML阅读 XML下载 导出引用 引用提醒 天山森林植物功能性状与碳库沿海拔梯度的变化 DOI: 10.5846/stxb201707111254 作者: 作者单位: 新疆大学资源与环境科学学院绿洲生态教育部重点实验室,新疆大学资源与环境科学学院绿洲生态教育部重点实验室;新疆林科院森林生态研究所,新疆林科院森林生态研究所,新疆林科院森林生态研究所 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目（U1503187）；“十二五”农村领域国家科技计划课题（2015BAD07B03-03）；新疆维吾尔自治区教育厅研究生科研创新项目（XJGRI2017021）；2017年新疆林业科技项目 The variations in plant functional traits and forest carbon content with altitudinal gradients in the Tianshan Mountains Author: Affiliation: Key Laboratory of Oasis Ecology,College of Resource and Environment Science,Xinjiang University,Key Laboratory of Oasis Ecology,College of Resource and Environment Science,Xinjiang University;Institute of Forest Ecology,Xinjiang Academy of Forestry,Institute of Forest Ecology,Xinjiang Academy of Forestry,Institute of Forest Ecology,Xinjiang Academy of Forestry Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:植物功能性状是能够将植物个体特征、群落结构和生态系统功能结合起来的良好载体，但关于在环境梯度上如何通过植物功能性状的连续变化来构建群落、以及植物功能性状如何反映生态系统功能等问题尚有较多疑问。为探讨天山森林植物功能性状与其碳库在海拔梯度上的联系，分析了14个群落尺度上的植物功能性状指标和各组分碳密度沿海拔的变化规律及二者之间的关系。结果表明：（1）受海拔梯度上环境因子的影响，群落尺度上植物功能性状和碳密度的垂直分布并不一致：随海拔升高，叶片碳氮比（C/N）逐渐上升，叶片碳含量（Cleaf）、比根长（SRL）和植株高度（H）升高后降低，叶绿素含量（Chl）、细根磷含量（Proot）、叶片氮磷比（N/P）逐渐下降，细根碳含量（Croot）先升高后趋于平缓，细根氮含量（Nroot）先下降后又有所回升，叶片氮含量（Nleaf）、木质素含量（LLC）、叶干物质含量（LDMC）、细根干物质含量（RDMC）在各海拔段间无显著差异；（2）比根长（SRL）和植株高度（H）通过影响资源的获取和利用，C与P通过对养分的限制和在器官中的分配，从而影响植被光合作用，与天山森林碳密度显著相关；高木质素含量（LLC）导致植物残体分解速率变慢而与土壤碳密度（SCD）和群落总碳密度（TCD）呈显著负相关关系。随海拔升高，植被碳密度（VCD）先升后降，土壤碳密度（SCD）和总碳密度（TCD）逐渐升高。植物功能性状与环境因子和森林的结构功能相互作用、相互影响，三者之间的关系还需在大尺度上进一步验证。 Abstract:Plant functional traits are important characteristics for understanding the relationship between individual, community, and ecosystem functions. In the present study, we established 43 sample sets to examine 12 types of plant functional traits and corresponding carbon density information at the community scale. The objective of this work was to determine the internal relationship between the adaptive variation in functional traits and the carbon density of forest communities along an elevation gradient. The results show that at a higher altitude, the carbon to nitrogen ratio (C/N) in leaves increased linearly, whereas carbon content (Cleaf), specific root length (SRL), and height (H) initially increased and then decreased. Chlorophyll content (Chl) and fine root phosphorus content (Proot) decreased with elevation and fine root carbon content (Croot) initially increased and then flattened out with altitude. Fine root nitrogen content (Nroot) initially decreased and then increased, whereas leaf nitrogen content (Nleaf), lignin content (LLC), and fine root dry matter content (RDMC) showed no significant difference with altitude. SRL, H, the content of C, P in leaf and root showed significant correlations with vegetation carbon density (VCD) and soil carbon density (SCD) in the Tianshan forest, as they have influential effects on the photosynthesis of vegetation, in which SRL and H could affect plants resource acquisition and utilization, whereas C and P would limit nutrient availability. There was a negative correlation between LLC and SCD in the Tianshan forest, as LLC would limit the decomposition rate of plant residue. VCD initially increased and then decreased, whereas SCD and total carbon density (TCD) increased gradually with altitude. Plant functional traits interact with environmental factors and forest structure functions at multi-ecological levels, and the relationship between the three components needs to be validated on a large scale. 参考文献 相似文献 引证文献

Plant functional traits regulate soil bacterial diversity across temperate deserts.

Plant diversity and functional traits form the core foundation of grassland ecosystem stability. However, rapid climate change poses a severe threat to biodiversity, making it imperative to clarify how these two factors mediate community responses to environmental changes across spatiotemporal scales. By integrating field surveys with laboratory analyses, we have investigated the spatiotemporal patterns of plant diversity and key functional traits within desert grasslands of the Ili River Basin. We found that: (1) Plant diversity in May and July was significantly higher than in September, with distinct seasonal dynamics observed across different plant community types; (2) During the main growing season, plant functional traits exhibited a marked increasing trend along the elevation gradient; (3) Both plant functional traits and diversity displayed a patchy mosaic distribution pattern, accompanied by significant spatial heterogeneity. High diversity values were predominantly located around Nilek and Huocheng counties, while low-value areas were distributed in Xinyuan and Gongliu counties. High-value areas for plant functional traits were concentrated in Nilek county, with low-value areas found in Xinyuan, Gongliu, and Huocheng counties. (4) Redundancy Analysis (RDA) and Structural Equation Modeling (SEM) indicate that soil moisture content and soil nitrogen are the primary drivers of diversity variation, while soil carbon-to-nitrogen ratio and precipitation regulate functional trait variation. These findings demonstrate how plants adapt to environmental heterogeneity through coordinated changes in diversity and functional traits, offering a scientific basis for conserving and managing desert steppe ecosystems.

PDF HTML阅读 XML下载 导出引用 引用提醒 海岛植物不同演替阶段植物功能性状与环境因子的变化规律 DOI: 10.5846/stxb201807051468 作者: 作者单位: 福建农林大学,福建农林大学,福建农林大学,云南大学,福建农林大学 作者简介: 通讯作者: 中图分类号: 基金项目: 福建省自然科学基金面上项目（2018J01699）；国家自然科学基金项目（31800401）；福建省教育厅科技项目（JAT170198） Summary of changes in plant functional traits and environmental factors in different successional stages of island plants Author: Affiliation: Fujian Agriculture and Forestry University,Fujian Agriculture and Forestry University,Fujian Agriculture and Forestry University,,Fujian Agriculture and Forestry University Fund Project: 省、部研究计划基金, 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:植物功能性状与环境之间的关系是功能性状研究的重点，环境因子驱使植物功能性状发生变化，进而推动群落发生演替。以平潭岛4个不同演替阶段的森林植被（灌草丛、针叶林、针阔混交林、常绿阔叶林）为研究对象，结合不同群落演替阶段的物种特征和群落结构，分析海岛不同演替阶段茎、叶功能性状的变化规律，以及功能性状与环境因子的关系。结果表明：（1）随着演替的进行，土壤养分和水分逐渐增加，土壤pH逐渐下降。比叶面积（SLA）、叶片氮含量（LNC）、叶片磷含量（LPC）、茎氮含量（SNC）、茎磷含量（SPC）下降后上升，叶厚度（LT）、叶片碳含量（LCC）、茎碳含量（SCC）与之相反，叶干物质含量（LDMC）、茎组织密度（STD）逐渐上升。（2）冗余分析表明，演替早期植物主要分布在土壤pH、容重高的贫瘠环境，拥有较高SLA、SNC、SPC、LPC的性状组合；演替后期植物主要分布在土壤养分和水分高的肥沃环境，拥有较高的STD、LDMC、LCC、LNC的性状组合。其中，土壤有机质和全氮含量是影响海岛植物演替过程中功能性状变化的关键环境因子。研究海岛植物功能性状与环境之间的关系随演替的变化规律，探讨各演替阶段功能性状和环境特征，以及功能性状如何响应环境变化。旨在为今后选择合适的树种进行海岛植被修复和重建提供依据。 Abstract:The relationship between plant functional traits and environment is the focus of functional traits research. Environmental factors drive the changes in plant functional traits, which in turn promote community succession. Based on the forest vegetation of four different succession stages (shrub-grassland, coniferous forest, mixed wood, and broadleaf forest) in Pingtan Island, this study combined the species characteristics and community structure of different community successional stages. We analyzed the changes in stem and leaf functional traits in different succession stages of island plants. Moreover, we explored the relationship between plant functional traits and environmental factors. The results showed the following. (1) With progress in succession, soil nutrient and water content gradually increased and the soil pH gradually decreased. The specific leaf area (SLA), leaf nitrogen content (LNC), leaf phosphorus content (LPC), stem nitrogen content (SNC), and stem phosphorus content (SPC) decreased initially, and then increased, Meanwhile, the leaf thickness (LT), leaf carbon content (LCC), and stem carbon content (SCC) increased initially, and then decreased. The leaf dry matter content (LDMC) and stem tissue density (STD) gradually increased. (2) The redundancy analysis showed that the early succession plants were mainly distributed in barren environments with high soil pH and high bulk density, and they presented higher SLA, SNC, SPC, and LPC. Plants in the late succession stages were mainly distributed in fertile environments with high soil nutrient and water content, and they presented higher STD, LDMC, LCC, and LNC. Therefore, soil organic matter and total nitrogen are the important environmental factors that affect the functional traits of island plants succession. We studied the relationship between plant functional traits and environment along with the changes in succession, understood the functional traits and environmental characteristics of each succession stage, and revealed how plant functional traits adapted to the environmental changes. The study provides the basis for the selection of suitable tree species for island vegetation restoration and reconstruction in the future. 参考文献 相似文献 引证文献