TY  - JOUR
A1  - Vogel, Johannes
T1  - Drivers of phenological changes in southern Europe
JF  - International Journal of Biometeorology
N2  - The life cycle of plants is largely determined by climate, which renders phenological responses to climate change a highly suitable bioindicator of climate change. Yet, it remains unclear, which are the key drivers of phenological patterns at certain life stages. Furthermore, the varying responses of species belonging to different plant functional types are not fully understood. In this study, the role of temperature and precipitation as environmental drivers of phenological changes in southern Europe is assessed. The trends of the phenophases leaf unfolding, flowering, fruiting, and senescence are quantified, and the corresponding main environmental drivers are identified. A clear trend towards an earlier onset of leaf unfolding, flowering, and fruiting is detected, while there is no clear pattern for senescence. In general, the advancement of leaf unfolding, flowering and fruiting is smaller for deciduous broadleaf trees in comparison to deciduous shrubs and crops. Many broadleaf trees are photoperiod-sensitive; therefore, their comparatively small phenological advancements are likely the effect of photoperiod counterbalancing the impact of increasing temperatures. While temperature is identified as the main driver of phenological changes, precipitation also plays a crucial role in determining the onset of leaf unfolding and flowering. Phenological phases advance under dry conditions, which can be linked to the lack of transpirational cooling leading to rising temperatures, which subsequently accelerate plant growth.
KW  - Phenology
KW  - Southern Europe
KW  - Plant functional types
KW  - Linear mixed effect model
KW  - Climate change
Y1  - 2022
U6  - https://doi.org/10.1007/s00484-022-02331-0
SN  - 0020-7128
SN  - 1432-1254
VL  - 66
IS  - 9
SP  - 1903
EP  - 1914
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Buter, Anuschka
A1  - Heckmann, Tobias
A1  - Filisetti, Lorenzo
A1  - Savi, Sara
A1  - Mao, Luca
A1  - Gems, Bernhard
A1  - Comiti, Francesco
T1  - Effects of catchment characteristics and hydro-meteorological scenarios on sediment connectivity in glacierised catchments
JF  - Geomorphology : an international journal on pure and applied geomorphology
N2  - In the past decade, sediment connectivity has become a widely recognized characteristic of a geomorphic system. However, the quantification of functional connectivity (i.e. connectivity which arises due to the actual occurrence of sediment transport processes) and its variation over space and time is still a challenge. In this context, this study assesses the effects of expected future phenomena in the context of climate change (i.e. glacier retreat, permafrost degradation or meteorological extreme events) on sediment transport dynamics in a glacierised Alpine basin. The study area is the Sulden river basin (drainage area 130 km(2)) in the Italian Alps, which is composed of two geomorphologically diverse sub-basins. Based on graph theory, we evaluated the spatio-temporal variations in functional connectivity in these two sub-basins. The graph-object, obtained by manually mapping sediment transport processes between landforms, was adapted to 6 different hydro-meteorological scenarios, which derive from combining base, heatwave and rainstorm conditions with snowmelt and glacier-melt periods. For each scenario and each sub-basin, the sediment transport network and related catchment characteristics were analysed. To compare the effects of the scenarios on functional connectivity, we introduced a connectivity degree, calculated based on the area of the landforms involved in sediment cascades. Results indicate that the area of the basin connected to its outlet in terms of sediment transport might feature a six-fold increase in case of rainstorm conditions compared to "average " meteorological conditions assumed for the base scenario. Furthermore, markedly different effects of climate change on sediment connectivity are expected between the two sub-catchments due to their contrasting morphological and lithological characteristics, in terms of relative importance of rainfall triggered colluvial processes vs temperature-driven proglacial fluvial dynamics.
KW  - Functional connectivity
KW  - Graph theory
KW  - Climate change
KW  - Geomorphic systems
Y1  - 2022
U6  - https://doi.org/10.1016/j.geomorph.2022.108128
SN  - 0169-555X
SN  - 1872-695X
VL  - 402
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Öztürk, Ugur
A1  - Bozzolan, Elisa
A1  - Holcombe, Elizabeth A.
A1  - Shukla, Roopam
A1  - Pianosi, Francesca
A1  - Wagener, Thorsten
T1  - How climate change and unplanned urban sprawl bring more landslides
JF  - Nature : the international weekly journal of science
N2  - More settlements will suffer as heavy rains and unregulated construction destabilize slopes in the tropics, models show.
KW  - Geophysics
KW  - Engineering
KW  - Climate change
KW  - Policy
Y1  - 2022
U6  - https://doi.org/10.1038/d41586-022-02141-9
SN  - 0028-0836
SN  - 1476-4687
VL  - 608
IS  - 7922
SP  - 262
EP  - 265
PB  - Nature portfolio
CY  - Berlin
ER  -