Functional traits drive the difference in soil respiration between Gilbertiodendron dewevrei monodominant forests patches and Scorodophloeus zenkeri mixed forests patches in the Central Congo basin.

Cassart, Benoît; Basia, Albert Angbonga; Jonard, Mathieu; Ponette, Quentin

doi:10.1007/s11104-020-04808-6

Cited by 4 publications

(3 citation statements)

References 73 publications

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“…These results indicate that the vegetation characteristics controlled the R A by signi cantly regulating the Vco 2 and LAI in the function of temperature in the P. taiwanensis forest across the altitudinal gradient. It was consistent with previous studies that seasonal changes in vegetation activity play a dominant role in the sensitivity of soil respiration component and highlights the critical ecological linkages between plant physiological processes and soil C cycling processes(Wang et al, 2010;Cassart et al, 2021).…”

supporting

confidence: 92%

“…However, it is largely unknown the dominant species community's characteristics, soil properties, and their interactive effects on soil autotrophic respiration. Dominant tree species identity has great impact on soil autotrophic respiration, due to the plant functional traits that drive C assimilation, transfer and emission collaborate with root activity, litter production and climate conditions (De Deyn et al 2008;Cassart et al, 2021). Accurate knowledge of the predictions of soil autotrophic respiration changes require the monodominant species of characteristics to quantify these relationships.…”

Section: Introductionmentioning

confidence: 99%

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The Vegetation Characteristics of Pinus Taiwanensis Drive the Changes in Different Components of Soil Respiration in Wuyi Mountain, Southeast China

Sun,

Li,

Penuelas

et al. 2024

Preprint

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confidence: 92%

Section: Introductionmentioning

confidence: 99%

The Vegetation Characteristics of Pinus Taiwanensis Drive the Changes in Different Components of Soil Respiration in Wuyi Mountain, Southeast China

Sun,

Li,

Penuelas

et al. 2024

Preprint

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“…However, it is difficult for researchers to obtain information on underground plant traits involving a certain spatial range. Because there is a strong correlation between changes in aboveground and underground traits [38], it is feasible to select easily measured aboveground functional traits to predict spatial variations in Rs [71]. The results showed that the key factors affecting Rs variability differed at different spatial scales.…”

Section: Discussionmentioning

confidence: 99%

Spatial Scale Effects of Soil Respiration in Arid Desert Tugai Forest: Responses to Plant Functional Traits and Soil Abiotic Factors

Wang

et al. 2022

Forests

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Understanding the spatial variation law of soil respiration (Rs) and its influencing factors is very important when simulating and predicting the terrestrial carbon cycle process. However, there are still limitations in understanding how different sampling scales affect the spatial heterogeneity of Rs and whether the spatial scale effect will change with habitat types. Our objectives were to explore the effects of different sampling scales on the spatial variability of Rs and the relative importance of soil abiotic characteristics and plant traits in influencing the spatial variability of Rs. The Rs, soil properties, and plant traits were measured through field investigation and indoor analysis in the Tugai forest desert plant community in the Ebinur Lake Basin in northwest China. The Rs showed significant water gradient changes, with a coefficient of variation of 35.4%–58%. Plot types had significant effects on Rs, while the change of sampling scale did not lead to significant differences in Rs. At the plot scale, Rs spatial variation at the 5 m × 5 m sampling scale mainly depended on plant traits (leaf length, leaf thickness, leaf dry matter content, and leaf phosphorus content, p < 0.05), while Rs spatial variation at the 10 m × 10 m scale mainly depended on soil properties (soil total phosphorus, ammonium nitrogen, soil water content, and pH, p < 0.05). At the local scale, soil nutrients (soil available phosphorus and ammonium nitrogen) and plant traits (maximum plant height, leaf length, and phosphorus content) at the 5 m × 5 m scale jointly explained 49% of the spatial change of Rs. In contrast, soil microclimate (soil water content), soil nutrients (soil pH, available phosphorus, and nitrate nitrogen), and plant traits (leaf thickness) jointly explained 51% of the spatial variation of Rs at the 10 m × 10 m scale. These results demonstrate the potential to predict the spatial variability of Rs based on the combination of easily measured aboveground functional traits and soil properties, which provides new ideas and perspectives for further understanding the mechanism of Rs change in Tugai forests.

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The vegetation characteristics of Pinus taiwanensis drive the changes in different components of soil respiration in Wuyi Mountain, Southeast China

Sun,

Li,

Penuelas

et al. 2023

Preprint

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Background and Aims Many driving variables have been used to model different soil respiration components. However, large uncertainty exists in the annual fluxes of soil respiration related to vegetation characteristics and soil properties. Methods Here, five Pinus taiwanensis forests along different elevations in the Wuyi Mountain were used to explore how the annual fluxes of total soil respiration (RS), autotrophic respiration (RA), and heterotrophic respiration (RH) were regulated by vegetation characteristics, including vegetation carbon sequestration (Vco2), 0-20 cm root biomass (WR), litter production (PL), leaf area index (LAI), and also soil properties, including soil temperature (ST), soil moisture (SM), fungal PLFAs and bacterial PLFAs. Results The results indicate that (1) the RH was positively correlated with ST, PL, WR, and LAI, and negatively correlated with SM; and the RA was positively related to the Vco2 and LAI, and inversely correlated with fungal and bacterial PLFAs. (2) RH is mainly determined by WR, while RA can be comprehensively predicted through the Vco2, and LAI; besides, the redundancy analysis indicated that WR, Vco2, and LAI together explained 83.06% of RS, RH, and RA changes in different elevations. Conclusion Overall, our results suggested that vegetation characteristics attributes such as WR, Vco2, and LAI rather than soil properties and microbial community composition, were more important for explaining the annual fluxes of soil respiration components variance in five P. taiwanensis forests. Thus, soil respiration depends more on the plant capacity to fix organic carbon as an initial source of organic matter sustaining overall soil respiration.

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Functional traits drive the difference in soil respiration between Gilbertiodendron dewevrei monodominant forests patches and Scorodophloeus zenkeri mixed forests patches in the Central Congo basin.

Cited by 4 publications

References 73 publications

The Vegetation Characteristics of Pinus Taiwanensis Drive the Changes in Different Components of Soil Respiration in Wuyi Mountain, Southeast China

The Vegetation Characteristics of Pinus Taiwanensis Drive the Changes in Different Components of Soil Respiration in Wuyi Mountain, Southeast China

Spatial Scale Effects of Soil Respiration in Arid Desert Tugai Forest: Responses to Plant Functional Traits and Soil Abiotic Factors

The vegetation characteristics of Pinus taiwanensis drive the changes in different components of soil respiration in Wuyi Mountain, Southeast China

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