Evaluating the productivity of four main tree species in Germany under climate change with static reduced models

Gutsch, Martin; Lasch-Born, Petra; Suckow, Felicitas; Reyer, Christopher P. O.

doi:10.1007/s13595-015-0532-3

Cited by 12 publications

(11 citation statements)

References 40 publications

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“…Such phenomenon has been already observed in South Tyrol [16]. Interestingly, some forest stands reported also NDII7 increase, which could be supported by findings of [74].…”

Section: Meteorological Drought Conditions and Forest Temporal Responsesupporting

confidence: 83%

“…Short-lived GPP and CF increases observed in 2003 are in line with [27] and could be explained not only by the earlier SBD and longer SL, but also intensified vegetation growth at higher altitudes, which is normally constrained by the temperature gradient [73,75]. Extended dryness led however to divergence in CF values within both impact classes, which can be related to site-specific differences and environmental conditions such as soil structure, and forest species distribution [28,33,74,76]. Although areas showing depleted NDII7 (class 3) were mostly detected in the Vinschgau Valley, which is the driest region of South Tyrol, expected higher drought adjustment of trees shown by [77] was not observed.…”

Section: Alpine Forestmentioning

confidence: 68%

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Drought Impact on Phenology and Green Biomass Production of Alpine Mountain Forest—Case Study of South Tyrol 2001–2012 Inspected with MODIS Time Series

Lewińska

Ivits

Schardt

et al. 2018

Forests

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Ecological balance and biodiversity of the alpine forest is endangered by global and local climatic extremes. It spurs a need for comprehensive forest monitoring, including in depth analyses of drought impact on the alpine woodland ecosystems. Addressing an arising knowledge gap, we identified and analyzed 2002-2012 aridity related responses within the alpine mountain forest of South Tyrol. The study exploited a S-mode PCA (Principal Component Analysis) based synergy between meteorological conditions rendered by the scPDSI (self-calibrated Palmer Drought Severity Index) and forest status approximated through MODIS (Moderate Resolution Imaging Spectroradiometer) derived NDVI (Normalized Difference Vegetation Index) and NDII7 (Normalized Difference Infrared Index based on MODIS band 7) time series. Besides characterizing predominant forest temporal response to drought, we identified corresponding spatial footprints of drought impact, as well as examined aridity-related changes in forest phenology and biomass production. The latter was further evaluated in relation to forest type, elevation, aspect and slope. Recognized meteorological conditions highlighted: prolonged 2003-2007 mild to extreme drought, and overall regional drying tendencies. Arising remotely sensed forest responses accounted on localized decline in foliage water content and/or photosynthetic activity, but also indicated regions where forest condition improved despite the meteorological stress. Perceived variability in the forest response to drought conditions was governed by geographic location, species structure, elevation and exposition, and featured complexity of the alpine forest ecosystem. Among the inspected biophysical factors elevation had the strongest influence on forest phenology and green biomass production under meteorological stress conditions. Stands growing above 1400 m a.s.l. demonstrated initial increase in annual biomass growth at the beginning of the dry spell in 2003. Conversely, woodlands at lower altitudes comprising considerable share of hardwood species were more prone to biomass decline in 2003, but experienced an overall upturn in biomass production during the following years of the dry spell. Aspect showed moderate effect on drought-related phenology and green biomass production responses. Diverse forest ecosystem responses identified in this study were in line with known local and regional analyses, but also shed some new light on drought induced alternation of forest status.

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“…Such phenomenon has been already observed in South Tyrol [16]. Interestingly, some forest stands reported also NDII7 increase, which could be supported by findings of [74].…”

Section: Meteorological Drought Conditions and Forest Temporal Responsesupporting

confidence: 83%

Section: Alpine Forestmentioning

confidence: 68%

Drought Impact on Phenology and Green Biomass Production of Alpine Mountain Forest—Case Study of South Tyrol 2001–2012 Inspected with MODIS Time Series

Lewińska

Ivits

Schardt

et al. 2018

Forests

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“…Even though uncertainties in model parametrization for all species and the uncertainties in model structure contribute to partly insufficient results (Medlyn et al, 2005b) we argue that it is encouraging to see how well 4C performs overall across these very different sites. In agreement with other recent studies with 4C (Borys et al, 2016;Gutsch et al, 2015a;Gutsch et al, 2016), this study underlines the applicability of 4C to its main research areas: (1) studies on climate impacts on managed forest ecosystems, (2) trade-off studies on forest-based ecosystem services, (3) studies on forest management strategies and risk analysis, (4) carbon accounting of forest-based bioenergy, and (5) studies on understanding the underlying functioning of forest ecosystems.…”

Section: Applicability and Reliability Of 4csupporting

confidence: 89%

Description and evaluation of the process-based forest model 4C at four European forest sites

Lasch-Born¹,

Suckow²,

Reyer³

et al. 2019

Preprint

Self Cite

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Abstract. The process-based model 4C (FORESEE) has been developed over the past twenty years. The objective of this paper is to give a comprehensive description of the main features of 4C and to present an evaluation of the model at four different forest sites across Europe. The evaluation was focused on growth parameters, carbon, water and heat fluxes. The main data source for the evaluation was the PROFOUND database. We applied different statistical metrics of evaluation and compared the inter-annual and inter-monthly variability of observed and simulated carbon and water fluxes. The ability to reproduce forest growth differs from site to site and is best for the pine stand site Peitz. The model's performance in simulating carbon and water fluxes was very satisfactory on daily and monthly time scales in contrast to the annual time scale. This underlines the conclusion that processes that are either not represented in dependence on on medium- to long-term dynamic influences such as allocation, or those that are not represented at all but may have a large impact at specific sites – such as the dynamics of non-structural carbohydrates (NSC) and ground vegetation growth – need to be elaborated for general forest growth investigations under climate change. On the other hand, 4C has shown a great potential for improvement since it emphasizes the representation of boundary conditions such as soil temperature at different depths. Therefore, more spatial differentiation of processes such as organ-specific respiration should easily be accomplished. Nonetheless, by using the PROFOUND database we were able to demonstrate the applicability and reliability of 4C.

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“…Future studies could combine both the economic consequences of species diversification and changes in rotation age (see for example Messerer et al (2017) for a methodological example). Recent studies also suggest an increase in growth performance of spruce under climate change (Gutsch et al 2016;Thiele et al 2017), while larger scale species distribution models have anticipated a long-term shift from coniferous to broad-leaved species (Dyderski et al 2017). We disregarded growth responses to climate variables.…”

Section: Discussionmentioning

confidence: 99%

Climate change and mixed forests: how do altered survival probabilities impact economically desirable species proportions of Norway spruce and European beech?

Paul

Brandl

Friedrich

et al. 2019

Annals of Forest Science

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Evaluating the productivity of four main tree species in Germany under climate change with static reduced models

Abstract: & Key messageWe present simple models of forest net primary production (NPP) in Germany that show increasing productivity, especially in mountainous areas, under warming unless water becomes a limiting factor.

Cited by 12 publications

References 40 publications

Drought Impact on Phenology and Green Biomass Production of Alpine Mountain Forest—Case Study of South Tyrol 2001–2012 Inspected with MODIS Time Series

Drought Impact on Phenology and Green Biomass Production of Alpine Mountain Forest—Case Study of South Tyrol 2001–2012 Inspected with MODIS Time Series

Description and evaluation of the process-based forest model 4C at four European forest sites

Climate change and mixed forests: how do altered survival probabilities impact economically desirable species proportions of Norway spruce and European beech?

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