Evaluating thermal treeline indicators based on air and soil temperature using an air-to-soil temperature transfer model

Gehrig-Fasel, Jacqueline; Guisan, Antoine; Zimmermann, Niklaus E.

doi:10.1016/j.ecolmodel.2008.01.003

Cited by 48 publications

(42 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While temperatures of foliage tissue may considerably differ from ambient air temperature (e.g., [20][21][22][23]), the mean soil temperature in the rooting zone and the root temperature at similar depths usually match. Hence, the rooting zone temperatures may better correlate than air temperatures with worldwide treeline position (see also [24]). The limit of tree growth in the world's humid mountains, for example, has been found to correlate best with a mean 5.5-7.5 • C soil temperature at a 10 cm depth during the growing season or year-round, as in the tropics [18].…”

Section: Traits and Causation Of Treeline At Coarse (Global/zonal) Scmentioning

confidence: 99%

Treelines—Approaches at Different Scales

Holtmeier

Broll

2017

Sustainability

View full text Add to dashboard Cite

Scales in treeline research depend on the objectives and must match the underlying natural processes. Factors and processes at one scale may not be as important at another scale. In the global view, the number of factors influencing climatic treeline position can be reduced to the effects of heat deficiency. Emphasis, however, should be laid on differentiation of the treeline by their regionally and locally varying physiognomy, diversity, spatial and temporal features, and heterogeneity. An assessment of the relative importance of the factors shaping regional/local treeline physiognomy, spatial patterns, and dynamics should have priority. This can be achieved only by syndisciplinary research. Such studies are indispensable for assessing treeline response to climate change at the regional and landscape scales.

show abstract

Section: Traits and Causation Of Treeline At Coarse (Global/zonal) Scmentioning

confidence: 99%

Treelines—Approaches at Different Scales

Holtmeier

Broll

2017

Sustainability

View full text Add to dashboard Cite

show abstract

“…In total 12 treeline locations across the Pyrenees were considered (Fig 1) and monthly mean air temperatures were obtained for those sites from the mean daily air temperature by applying cubic splines. The temperature transfer model employed to convert daily air into soil or root-zone mean temperatures was created by using time-lagged regression techniques following Gehrig-Fasel et al (2008). The model was fitted with data from the Sobrestivo (SO) site for the period with soil temperatures above 0º C. We used the following equation:…”

Section: Estimation Of Root Zone Temperatures Based On Air Temperaturesmentioning

confidence: 99%

Complex climate constraints of upper treeline formation in the Pyrenees

Andrés

Camarero

Büntgen

2015

Trees

View full text Add to dashboard Cite

Alpine treelines are often induced by a threshold of minimum temperatures above which tree growth is generally not possible anymore. However, this worldwide pattern may not account for more drought-prone mountains, where changes in precipitation can also affect ecosystem functioning and productivity at higher elevations. Here, we aim to determine if tree ring formation in ecotones along the Pyrenees indeed primarily depends on temperature means or also reflects hydroclimatic changes. The mean duration of the growing season at Pyrenean treelines was 177 days lasting from mid May to early November, which corresponds to a mean root-zone temperature of 8.2 ºC.Temperatures during the early and late growing season were most critical for mountain pine growth at highest elevations, and above average spring temperatures also contributed to radial enlargement of tracheids. Sites showing more similar soil temperatures also presented more alike long-term growth trends indicating that local conditions trace regional influences on growth. Nevertheless, more wet conditions in summer enhanced growth at treelines subjected to more Mediterranean influence and therefore having a higher summer water deficit. A broader perspective reveals that soil moisture availability during spring and summer, however, also influenced ring width formation at other treelines located in mid-latitude mountains separating temperate and semi-arid biomes. Our results suggest re-evaluating the idea of purely temperaturelimited treelines, especially in mid-latitude mountains that experience moisture seasonality or where precipitation decreases with increasing elevation.

show abstract

“…

…”

mentioning

confidence: 99%

“…the description of the competition between the different tree species within a forest and the success of trees for natural regeneration [7][8][9][10].…”

mentioning

confidence: 99%

Coupling a Forest Growth Model with a Soil Carbon Simulator

Dolschak¹,

Jandl²,

Ledermann³

2013

Management Strategies to Adapt Alpine Space Forests to Climate Change Risks

View full text Add to dashboard Cite

the description of the competition between the different tree species within a forest and the success of trees for natural regeneration [7][8][9][10].Biogeochemical models such as Biome-BGC are large scale models that model primary productivity [11]. The simulation results mostly apply for large regions and are skillfully broken down for smaller regions. Although the models are generally not conceived for the description of silvicultural treatments, there are efforts underway to introduce options of forest management [12].We chose a productivity model, because we wanted to properly depict management options that are expressed in terms of generally understandable silvicultural interventions. In productivity models the emphasis is typically on the effect of silvicultural interventions, but not necessarily on the provision of ecosystem services such as carbon sequestration.The sequestration of carbon in forest soils is often not integrated in the productivity models. Instead, the carbon dynamics are calculated separately. A notable exception is a Swiss study were the impact of storm damage on the soil carbon pool had been evaluated [13]. The effect of tree species on the forest soil carbon pool has been shown [14][15][16][17]. Therefore, we are convinced that a full assessment of forest management options needs to comprise both the carbon pools in the total biomass and the soil.

show abstract

Evaluating thermal treeline indicators based on air and soil temperature using an air-to-soil temperature transfer model

Cited by 48 publications

References 24 publications

Treelines—Approaches at Different Scales

Treelines—Approaches at Different Scales

Complex climate constraints of upper treeline formation in the Pyrenees

Coupling a Forest Growth Model with a Soil Carbon Simulator

Contact Info

Product

Resources

About