The relationships between biomass allocation and plant functional trait

Yin, Qiulong; Tian, Tingting; Han, Xiaohui; Xu, Jinshi; Chai, Yimin; Mo, Jiao; Lei, Maolin; Wang, Lei

doi:10.1016/j.ecolind.2019.02.047

Cited by 41 publications

(38 citation statements)

References 44 publications

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“…This shift under RSM may be due to the increases in T soil as well as AN and the decrease in EC e (Tables 3 and 5). In contrast, the species in CK still allocated more biomass to coarse roots and stems (perennial organs) at the expense of leaves and fine roots (ephemeral organs) in 2017, which conflicts with OPT that more biomass should be invested into fine roots if soil nutrient availability is limited (Yin et al, 2019). This finding suggests that A. fruticosa in CK gradually adopted a conservative strategy in biomass allocation during the periods of frequent re‐accumulation of salts.…”

Section: Discussionmentioning

confidence: 99%

“…Soil properties play important roles in affecting plant adaptive growth (Yang et al, 2017). Different mulches can improve, to various degrees, the salty, hydrothermal, and nutritional environments of saline soils (Dong et al, 2018; Kader et al, 2017), thus differentially affecting the ecological adaptation strategies adopted by A. fruticosa (Yang et al, 2017; Yin et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…In general, plants will allocate more metabolic energy to the production of roots when the uptake of soil nutrients and water is difficult (Yin et al, 2019). In this study, the biomass allocation strategies of A. fruticosa differed in the differentially improved soil environments as affected by different mulches (Figure 3).…”

Section: Discussionmentioning

confidence: 99%

“…Plants employ a range of adaptation strategies in response to changes in soil environment at both whole‐plant and fine‐root levels. According to optimal partitioning theory (OPT), plants will preferentially allocate biomass to organs that capture the most limiting resources (Yin et al, 2019). In addition, fine root (<2 mm), as the major organ of absorbing water, oxygen, and nutrients can use two distinct adaptive strategies including extensive or intensive exploitation strategy (Addo‐Danso et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Soil environment and growth adaptation strategies of Amorpha fruticosa as affected by mulching in a moderately saline wasteland

et al. 2020

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Understanding the growth adaptive strategies of Amorpha fruticosa in response to the changes of saline soil environment under different mulch types (plastic mulch [PM]; sand mulch [SM]; rice straw mulch [RSM]; and control with non-mulching [CK]) is very important, as this determines afforestation success in a moderately saline soil. The species' soil microenvironments, fine root traits, and biomass allocation patterns were investigated in 2016 and 2017. Compared to CK, electrical conductivity of saturated paste extracts (EC e) reduced significantly under the mulching treatments especially under PM. Both PM and SM effectively increased soil temperature (T soil) and available nitrogen (AN), but reduced soil organic carbon (SOC) in 2016; while RSM increased soil nutrients, but reduced T soil. The A. fruticosa under RSM (following PM and SM) invested more biomass, to shoots relative to roots, to coarse roots relative to fine roots, and to stems and leaves at the expense of coarse roots and fine roots from 2016 to 2017, as its saline soil environment especially the low T soil improved. In both years, the fine roots of A. fruticosa under PM employed exploitation potential or 'extensive strategy' (fine root mass density; fine root length density) more successfully at the 0-40 cm, while the fine roots under CK used higher exploitation efficiency or 'intensive strategy' (specific root length; and specific root area). The indicators of intensive strategy at the 40-60 cm were higher under PM than SM and RSM. Therefore, PM will better help A. fruticosa adapt to the harsh soil environment during afforestation in a moderately saline wasteland.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil environment and growth adaptation strategies of Amorpha fruticosa as affected by mulching in a moderately saline wasteland

et al. 2020

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“…For example, drought or drought in the growing season causes a decrease in plant height and an increase in SLA and LDMC [24]. The plant functional traits as potential covariates may lead to the allocation of biomass under drought according to the optimal partitioning theory [25,26]. However, the link between the allocation of biomass and plant functional traits remains poorly known [26].…”

Section: Introductionmentioning

confidence: 99%

Drought of early time in growing season decreases community aboveground biomass, but increases belowground biomass in a desert steppe

Zuo

Yue

et al. 2021

Preprint

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Background: Increasing drought induced by global climate changes is altering the structure and function of grassland ecosystems. However, there is a lack of understanding of how drought affects the allocation and trade-off of above- and belowground biomass in desert steppe. We conducted a four-year (2015-2018) drought experiment to examine the responses of community above-and belowground biomass (AGB and BGB) to manipulated drought and natural drought in the early period of growing season (from March to June) in a desert steppe. We compared the associations of drought with species diversity (species richness and density), community-weighted means (CWM) of five traits, and soil factors (soil Water, soil carbon content, and soil nitrogen content) for grass communities. Meanwhile, we used the structural equation modeling (SEM) to elucidate whether drought affects AGB and BGB by altering species diversity, functional traits and soil factors.Results: We found that drought reduced the species richness, and species modified the CWM of traits to cope with drought. Manipulated drought had the effect on soil water content, but not on soil carbon and nitrogen content. We also found that the experimental and natural drought decreased AGB, while natural drought increased BGB. AGB was correlated with species richness, density, plant height and soil water, while BGB was correlated with CWM of plant height, CWM of specific leaf area, CWM of leaf dry matter content, CWM of leaf nitrogen content, soil water, soil carbon and nitrogen content. The SEM results indicated that the experimental and natural drought indirectly decreased AGB by reducing species richness and plant height, while natural drought and soil nitrogen content directly affected BGB. Conclusions: These results suggest that species richness and functional traits can modulate the effects of drought on AGB, however natural drought and soil nitrogen determine BGB. Our findings demonstrate that the long-term observation and experiment are necessary to understand the underlying mechanism of the allocation and trade-off of community above-and belowground biomass.

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Variations in root architecture traits and their association with organ mass fraction of common annual ephemeral species in the desert of northern Xinjiang

Wang,

Liu,

Zhang

et al. 2024

Ecology and Evolution

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The variation of plant traits is closely related to the trade‐offs between resource acquisition and conservation, as well as the accumulation of biomass. However, there has been a lack of comprehensive insights into the variation patterns, phylogenetic conservatism, and covariation with biomass allocation of root system architecture in desert areas. We examined the root systems of 47 annual ephemeral species and evaluated their biomass allocation and six key root system architecture traits. Our results indicated that the variation in root traits mainly originated from interspecific variation (48.78%–99.76%), but intraspecific variation should not be ignored as to why the contribution rate of root tissue density (RTD) reached 51.22%. The six root traits were mainly loaded on the first and second axes of the principal component analysis (PCA), these traits mainly vary along two dimensions. The highest interspecific variation is in RTD (51.63%) and the lowest in topological index (TI; 5.92%). The intraspecific variation value and range of specific root length (SRL), specific root area (SRA), and RTD were significantly higher than TI (p < .05), and they are not limited by phylogenetic relationships (0< K < 1, p > .05). The SRA is positively correlated with SRL (r = .72, p < .001) and negatively correlated with RTD (r = −.57, p < .05). The LMF is positively correlated with SRL, and SRA demonstrated the coordination between water consumption and acquisition. The positive correlation between RMF and MRD indicated the coordination of root carbon investment with exploring soil vertical space. The multi‐dimensional variation of root traits, divergence of RTDs, and convergence of TI are important ecological strategies for annual short‐lived plants to adapt to heterogeneous desert habitats. Meanwhile, these plants achieve optimal access to scarce resources through the high plasticity of resource acquisition (e.g., SRL and SRA) and conservation traits (e.g., RTD), as well as the trade‐offs between them and organ mass fraction.

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The relationships between biomass allocation and plant functional trait

Cited by 41 publications

References 44 publications

Soil environment and growth adaptation strategies of Amorpha fruticosa as affected by mulching in a moderately saline wasteland

Soil environment and growth adaptation strategies of Amorpha fruticosa as affected by mulching in a moderately saline wasteland

Drought of early time in growing season decreases community aboveground biomass, but increases belowground biomass in a desert steppe

Variations in root architecture traits and their association with organ mass fraction of common annual ephemeral species in the desert of northern Xinjiang

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