Comparing the influence of thinning treatments with low to high residual basal area on red maple transpiration in a temperate mixed forest

André-Alphonse, Thibaud; Mekontchou, Claudele Ghotsa; Rochon, Pascal; Doyon, Frédérik; Maheu, Audrey

doi:10.1016/j.foreco.2023.120857

Cited by 2 publications

(3 citation statements)

References 47 publications

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“…In addition, regardless of pruning heights, T1 showed higher average daily transpiration compared to T2 (Figure 5d). This suggests that transpiration decreases with increasing thinning intensity, which is consistent with the findings of Forrester et al [11], Guohui Wang et al [74], Tsamir et al [75], and Thibaud Andr'e-Alphonse et al [39]. Two main factors contribute to these results.…”

Section: Response Patterns Of Individual Tree and Stand-level Transpi...supporting

confidence: 89%

“…Additionally, negative correlations between transpiration and thinning intensity have been observed in arid regions [41,[77][78][79], but our study area experienced abundant rainfall. André-Alphonse et al found variations in moisture conditions across different regions [39], leading to different relationships between transpiration and thinning intensity outcomes.…”

Section: Response Patterns Of Individual Tree and Stand-level Transpi...mentioning

confidence: 99%

“…It is crucial to note that the response of stands to water conditions differs significantly from that of individual trees [38]. After thinning, a reduction in tree amount reduces stand-level transpiration [21,39]. However, some studies have shown that stand transpiration after thinning was significantly differ from that before thinning [40].…”

Section: Introductionmentioning

confidence: 99%

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Thinning vs. Pruning: Impacts on Sap Flow Density and Water Use Efficiency in Young Populus tomentosa Plantations in Northern China

Liu,

et al. 2024

Forests

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Water is a vital resource for tree growth, and changes in plantation and canopy structure can affect stand transpiration (Ec), consequently influencing water use efficiency (WUE). Populus tomentosa is a fast-growing and productive timber species in China. In recent years, thinning combined with pruning has become a widely used silvicultural practice for timber management. However, its effect on water utilization has been less well studied. To address this gap, we designed experiments with two thinning intensities and three pruning treatments. Thermal dissipation probes were employed to monitor tree sap flow density (Js), and estimated Ec and canopy conductance (gc). We established a relationship between the canopy transpiration per unit leaf area (EL) and gc and climatic factors. Finally, we compared basal area increment (BAI) and WUE among treatments under different rainfall conditions. The results indicated that: (1) The pattern of transpiration changes was consistent at both the individual tree and stand level. (2) The combined effect of T1 (thinning intensity of 833 trees per hectare) and pruning reduced Ec, decreasing the sensitivity of tree transpiration to the climate, with no discernible impact on EL and gc. Conversely, T2 (thinning intensity of 416 trees per hectare) and pruning increased EL and gc but had no effect on Ec, enhancing the sensitivity of tree transpiration to the climate. The sensitivity of gc to VPD suggested a flexible stomatal regulation of transpiration under different combined thinning and pruning treatments. (3) Under T1, only P2 (4 m pruning from ground) promoted WUE, while pruning effects significantly reduced WUE under T2. Overall, the WUE of T2P0 (thinning intensity of 416 trees per hectare combined with no pruning) was significantly higher than that of the other treatments, and that of T1P0 (thinning intensity of 833 trees per hectare combined with no pruning) was significantly lower than that of the other treatments. Additionally, significant differences in Ec and BAI were observed among treatments under different rainfall conditions, with the promotion effect of Ec on BAI being more pronounced in the dry season.

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Section: Response Patterns Of Individual Tree and Stand-level Transpi...supporting

confidence: 89%

Section: Response Patterns Of Individual Tree and Stand-level Transpi...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thinning vs. Pruning: Impacts on Sap Flow Density and Water Use Efficiency in Young Populus tomentosa Plantations in Northern China

Liu,

et al. 2024

Forests

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Active management: a definition and considerations for implementation in forests of temperate Australia

Bennett,

Fairman,

Ford

et al. 2024

Australian Forestry

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Comparing the influence of thinning treatments with low to high residual basal area on red maple transpiration in a temperate mixed forest

Cited by 2 publications

References 47 publications

Thinning vs. Pruning: Impacts on Sap Flow Density and Water Use Efficiency in Young Populus tomentosa Plantations in Northern China

Thinning vs. Pruning: Impacts on Sap Flow Density and Water Use Efficiency in Young Populus tomentosa Plantations in Northern China

Active management: a definition and considerations for implementation in forests of temperate Australia

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