Hydraulic properties and embolism in small-diameter roots of five temperate broad-leaved tree species with contrasting drought tolerance

Köcher, Paul; Horna, Viviana; Beckmeyer, Ingo; Leuschner, Christoph

doi:10.1007/s13595-012-0189-0

Cited by 34 publications

(31 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As demonstrated by Phillips et al (), Köcher et al (), Čermák et al (), and Urban et al (), same‐day RWU is the major contributor to daily transpiration of both coniferous and deciduous trees during the growing season in temperate and Mediterranean climates, whereas the tree‐storage contribution during periods of low transpiration can be much larger (Hao et al, ). We anticipate that the simplification obtained by assuming ZS (and therefore EMMA methodologies for estimating RWU depths) would be most valid during periods of high transpiration and at locations with high soil water contents, whereas errors would grow at upslope locations and during periods of reduced soil water availability.…”

Section: Discussionmentioning

confidence: 92%

“…Further, EMMA requires the assumption that the measured isotopic compositions of xylem waters (δ XYLEM ) are representative of the RWU isotopic composition (δ RWU ), suggesting that water storage and mixing within trees is negligible. However, experimental studies of residence times within trees challenge this assumption (Čermák, Kučera, Bauerle, Phillips, & Hinckley, 2007;Köcher, Horna, Beckmeyer, & Leuschner, 2012;Meinzer et al, 2006;Urban, Čermák, & Ceulemans, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Capacitive discharge (forced transpiration from tree-stored water) provides a biological resilience against embolism (Scholz, Phillips, Bucci, Meinzer, & Goldstein, 2011). Tree-stored water has been shown to contribute up to 20% of daily transpiration during the peak growing season within Douglas fir (Pseudotsuga menziesii) in a Mediterranean climate (Čermák et al, 2007;Phillips et al, 2003), the genera Fagus, Tilia, Carpinus, Fraxinus, and Acer within a temperate climate (Köcher et al, 2012), and Scots pine (Pinus sylvestris) in a temperate maritime climate (Urban et al, 2015). Within time periods of reduced plant growth and atmospheric water demand, transpiration from Douglas fir can be sourced solely from tree-stored water for up to 1 week (Čermák et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Using isotopes to incorporate tree water storage and mixing dynamics into a distributed ecohydrologic modelling framework

et al. 2020

View full text Add to dashboard Cite

Root water uptake (RWU) by vegetation influences the partitioning of water between transpiration, evaporation, percolation, and surface runoff. Measurements of stable isotopes in water have facilitated estimates of the depth distribution of RWU for various tree species through methodologies based on end member mixing analysis (EMMA). EMMA often assumes that the isotopic composition of tree‐stored xylem water (δXYLEM) is representative of the isotopic composition of RWU (δRWU). We tested this assumption within the framework of EcH2O‐iso, a process‐based distributed tracer‐aided ecohydrologic model, applied to a small temperate catchment with a vegetation cover of coniferous eastern hemlock (Tsuga canadensis) and deciduous American beech (Fagus grandifolia). We simulated three scenarios for tree water storage and mixing: (a) zero storage (ZS), (b) storage with a well‐mixed reservoir (WM), and (c) storage with piston flow (PF). Simulating tree storage (WM and PF) improved the fit to δXYLEM observations over ZS in the summer and fall seasons and substantially altered calibrated RWU depths and stomatal conductance. Our results suggest that there are likely to be advantages to considering tree storage and internal mixing when attempting to interpret δXYLEM in the estimation of RWU depths and critical zone water residence times, particularly during periods of low transpiration. Improved representations of tree water dynamics could yield more accurate ecohydrologic and earth system model representations of the critical zone.

show abstract

Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Using isotopes to incorporate tree water storage and mixing dynamics into a distributed ecohydrologic modelling framework

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The net result was a much lower specific conductance: 4.48 ± 0.77 kg MPa −1 s −1 m −2 in ash compared to 13.03 ± 1.40 in F. sylvatica (Köcher et al . ). The roots of ash can supply enough water to the profligate stems not by speed of movement but instead appear to rely on a high density of fine roots to increase access to soil water; in central German stands, Hölscher et al .…”

Section: Structure and Physiologymentioning

confidence: 97%

Biological Flora of the British Isles:Fraxinus excelsior

Thomas

2016

Journal of Ecology

View full text Add to dashboard Cite

Summary1. This account presents information on all aspects of the biology of Fraxinus excelsior L. (Ash) that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history, and conservation. 2. Fraxinus excelsior is a large forest tree, native throughout the main islands of Britain and much of mainland Europe. Seedlings are shade tolerant, but adults are not so it tends to be an intermediate successional species, invading gaps in mixed stands rather than forming extensive pure stands. Ash grows on a wide range of soils but is commonest on nutrient-rich soils with a high base status and pH > 4.2, and is at its best on dry calcareous screes and fertile alluvial soils. 3. Fraxinus excelsior is trioecious or subdioecious with male, hermaphrodite and female flowers and trees. Seed production is prolific with periodic higher producing mast years. Seeds are primarily wind-dispersed, but they can float and be moved considerable distances along waterways. Germination is delayed by dormancy until usually the second spring after being shed. 4. Ash is tolerant of drought, but intolerant of spring frosts and so is predicted to fare well under current climate change scenarios, and indeed has recently been expanding in range in Europe. However, ash health and survival is currently seriously compromised by ash dieback caused by the fungus Hymenoscyphus fraxineus (Chalara fraxinea) that has the potential to kill all but a very few resistant trees. Moreover, the emerald ash borer beetle Agrilus planipennis, a serious pest of ash species in N. America, has reached Europe (though not yet the British Isles) and poses an equally if not more serious long-term threat to ash.

show abstract

“…cordata is a drought-tolerant tree species. It is weakly, or not at all, affected by short periods of drought [14,18,20,21]. Nevertheless, in the Mediterranean region, where annual rainfalls are less than 500 mm and evaporation is high, T. cordata is still often restricted to north-facing slopes, ravines, and zones with a good water supply [11].…”

Section: Water Supplymentioning

confidence: 99%

A Review of the Characteristics of Small-Leaved Lime (Tilia cordata Mill.) and Their Implications for Silviculture in a Changing Climate

Jaegere

Hein

Claessens

2016

Forests

View full text Add to dashboard Cite

Tilia cordata Mill. is a minor European broadleaved species with a wide but scattered distribution. Given its scarcity and low value in the wood market, it has received little attention from researchers and forest managers. This review summarizes the main aspects of T. cordata ecology and growth. Its main limiting factor is its need for warm summer temperatures to ensure successful seed production. It has a height growth pattern relatively similar to that of Acer pseudoplatanus L., with a slight delay in the early stages. Yield tables report great productivity, especially in eastern Europe. T. cordata used to be a major species in Europe, in contrast to its present distribution, but it is very likely to receive renewed interest in the future. Indeed, with the potential change of competition between species in some regions and the need for important diversification in others, T. cordata may play an important role in forest adaptation to climate change, especially owing to its wide ecological tolerance and its numerous ecosystem services. It is necessary to increase our knowledge about its regeneration and its responses to environmental and silvicultural factors, to establish clear management recommendations.

show abstract

Hydraulic properties and embolism in small-diameter roots of five temperate broad-leaved tree species with contrasting drought tolerance

Cited by 34 publications

References 39 publications

Using isotopes to incorporate tree water storage and mixing dynamics into a distributed ecohydrologic modelling framework

Using isotopes to incorporate tree water storage and mixing dynamics into a distributed ecohydrologic modelling framework

Biological Flora of the British Isles:Fraxinus excelsior

A Review of the Characteristics of Small-Leaved Lime (Tilia cordata Mill.) and Their Implications for Silviculture in a Changing Climate

Contact Info

Product

Resources

About