Functional relationships between hydraulic traits and the timing of diurnal depression of photosynthesis

Carbonell‐Silletta, Luisina; Garré, Analía; Cavallaro, Agustín; Efron, Samanta Thais; Arias, Nadia Soledad; Goldstein, Guillermo; Scholz, Fabián Gustavo

doi:10.1111/pce.13512

Cited by 34 publications

(26 citation statements)

References 70 publications

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“…One possible reason is that K leaf and P50 leaf are influenced by both xylem [12,25] and outside-xylem pathways [6,9,26], thus obscuring such a trade-off. Conversely, other studies have found a significant leaf hydraulic trade-off in Mediterranean-type forest [27] and across angiosperm species from different biomes [5]. Therefore, a global meta-analysis incorporating a broad range of plant functional groups and water environments would provide a more complete understanding of such a trade-off [28].…”

Section: Introductionmentioning

confidence: 95%

Leaf hydraulic safety margin and safety–efficiency trade-off across angiosperm woody species

Yan

Cao

et al. 2020

Biol. Lett.

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Leaf hydraulic conductance and the vulnerability to water deficits have profound effects on plant distribution and mortality. In this study, we compiled a leaf hydraulic trait dataset with 311 species-at-site combinations from biomes worldwide. These traits included maximum leaf hydraulic conductance ( K leaf ), water potential at 50% loss of K leaf (P50 leaf ), and minimum leaf water potential ( Ψ min ). Leaf hydraulic safety margin (HSM leaf ) was calculated as the difference between Ψ min and P50 leaf . Our results indicated that 70% of the studied species had a narrow HSM leaf (less than 1 MPa), which was consistent with the global pattern of stem hydraulic safety margin. There was a positive relationship between HSM leaf and aridity index (the ratio of mean annual precipitation to potential evapotranspiration), as species from humid sites tended to have larger HSM leaf . We found a significant relationship between K leaf and P50 leaf across global angiosperm woody species and within each of the different plant groups. This global analysis of leaf hydraulic traits improves our understanding of plant hydraulic response to environmental change.

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Section: Introductionmentioning

confidence: 95%

Leaf hydraulic safety margin and safety–efficiency trade-off across angiosperm woody species

Yan

Cao

et al. 2020

Biol. Lett.

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“…This can explain why the height and DBH of the initial seedlings of the species increase 3-5 times merely in 3 years' plantation (from the year of 2016 to 2019). Higher photosynthetic rates also result in higher leaf anatomy traits (Oguchi et al, 2003;He et al, 2017;Hua et al, 2017), stomatal traits (McAusland et al, 2016Lawson and Vialet-Chabrand, 2019), transpiration rate and leaf hydraulic conductivity (Maherali et al, 2008;Bucci et al, 2019). Indeed, we found that these traits for the eight fast-growing species were three to five times greater than for native species.…”

Section: Table 2 |mentioning

confidence: 49%

Tropical Rainforest Successional Processes can Facilitate Successfully Recovery of Extremely Degraded Tropical Forest Ecosystems Following Intensive Mining Operations

Zhao

Zou

Wang

et al. 2021

Front. Environ. Sci.

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Reforestation is an effective way to alleviate deforestation and its negative impacts on ecosystem services. In tropical rainforest ecosystem, however, frequent typhoons and heavy rainfall can result in landslides and uprooting of many seedlings, making reforestation efforts very difficult, especially within extremely degraded sites where soil conditions cannot support any plant life. Here, we described a reforestation protocol which is based on tropical rainforest successional processes to not only prevent landslides and tree uprooting due to frequent typhoon and heavy rain, but also accelerate tropical forest succession. This protocol first used the slope and soil layer of the undisturbed old-growth tropical rainforest as a reference to reconstruct slope and soil layers. Then multiple tropical tree species with high growth and survival rate were separately monocultured in the reconstructed soil layers. In the year of 2015 and 2016, we tested the effectiveness of this protocol to recover a 0.2 km2 extremely degraded tropical rainforest which consists of bare rock and thus does not support any plant life, in Sanya city, China. Our results showed that, both typhoons and heavy rains did not result in landslide or any tree damages in the area this reforestation protocol was used. Moreover, our separately monocultured eight fast-growing tree species have much higher fast-growing related functional traits than those for tree species in the adjacent undisturbed tropical seasonal forest, which in turn resulted in large soil water and nutrient loss within 3 years. This seemed to simulate a quick transition from primary succession (consist of bare rock and cannot support any plant life) to mid-stage of secondary tropical rainforest succession (many fast-growing pioneer tree species induced high soil water and nutrient loss). Thus, mixing the late-successional tropical tree species with each of the separately monocultured eight fast-growing tree species can accelerate recovery to the undisturbed tropical rainforest as soon as possible. Overall, based on tropical rainforest successional processes, our research provides an effective protocol for quickly and effectively restoring an extremely degraded tropical rainforest ecosystem. We expect that this work will be important for the future recovery of other extremely degraded tropical rainforest ecosystems.

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“…High photosynthetic rates can result in increased stomatal conductance (Lawson & Vialet-Chabrand, 2019; McAusland et al., 2016) and transpiration rates (Bucci et al., 2019; Maherali et al., 2008; Santos et al., 2018). L. leucocephala has evolved leaf traits for maximizing photosynthetic capacity and increasing overall growth, which plausibly facilitates it to outperform the native dominant plant species.…”

Section: Discussionmentioning

confidence: 99%

Seasonally Distinctive Growth and Drought Stress Functional Traits Enable Leucaena Leucocephala to Successfully Invade a Chinese Tropical Forest

Luo¹,

Cui²,

Pandey

et al. 2020

Tropical Conservation Science

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The nitrogen-fixing mimosid Leucaena leucocephala continues to be used for afforestation in degraded tropical forests. Yet, fast-growth and high drought stress tolerance enables L. leucocephala to outperform native species and L. leucocephala has been identified as one of the 100 most invasive species globally. This warrants development of effective control measures, including bio-controls, to prevent the spread of this species particularly across tropical islands. Here, we compare differences in key functional traits between L. leucocephala and eight dominant native species ( Bridelia tomentosa, Radermachera frondosa, Lepisanthes rubiginosa, Rhaphiolepis indica, Pterospermum heterophyllum, Fissistigma oldhamii, Psychotria rubra and Cudrania cochinchinensis) in L. leucocephala invaded tropical forests of Hainan Island, China. Functional traits related to growth (photosynthesis rate, stomatal conductance and transpiration rate) and drought stress tolerance (leaf turgor loss point) were measured in wet and dry seasons to investigate whether these functional traits differed between L. leucocephala and the eight dominant native species. Our results demonstrate that L. leucocephala has significantly increased growth rates (at least two-fold) in both wet and dry seasons. Additionally, L. leucocephala shows significantly higher drought stress tolerance (lower TLP) in the dry season. These results indicate that L. leucocephala would almost certainly outperform the eight dominant native species and might successfully invade Hainan tropical forests. There is an urgent need to identify native species that have similar growth and drought stress tolerance traits to enable the development of effective strategies to control L. leucocephala on Hainan Island.

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Functional relationships between hydraulic traits and the timing of diurnal depression of photosynthesis

Cited by 34 publications

References 70 publications

Leaf hydraulic safety margin and safety–efficiency trade-off across angiosperm woody species

Leaf hydraulic safety margin and safety–efficiency trade-off across angiosperm woody species

Tropical Rainforest Successional Processes can Facilitate Successfully Recovery of Extremely Degraded Tropical Forest Ecosystems Following Intensive Mining Operations

Seasonally Distinctive Growth and Drought Stress Functional Traits Enable Leucaena Leucocephala to Successfully Invade a Chinese Tropical Forest

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