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Soil & plant processes

Results highlights

The key to understanding when and how sudden ecosystem shifts occur lies in knowledge of the detailed processes operating between plants, soil and water.

In order to disentangle the various components of the ecohydrological feedbacks that relate plant pattern, resource availability and productivity in drylands, as well as the independent role of critical factors that control these feedbacks, CASCADE performed manipulative experiments combined with field observations.

Please cite as: Bautista, S. et al. 2015. Report on the potential for sudden shifts. CASCADE Project Deliverable 4.1. 26 pp. Available at: www.cascadis-project.eu/documents

Report on manipulative field experiments to assess the occurrence of non-linear, threshold dynamics and tipping points towards a degraded state in response to decreasing plant cover and to gain insights about the mechanisms underlying such dynamics.

Please cite as: Bautista, S. et al. (2016) The role of increasing environmental pressure in triggering sudden shifts in ecosystem structure and function. CASCADE Project Deliverable 4.2, 35 pp. Available at: www.cascadis-project.eu/documents

Models developed in CASCADE focused on two axes of improvement of current dryland models relevant to studying dryland resilience. Firstly on the way external pressures are incorporated in dryland models (in particular on  grazing, fire and drought) and secondly on the way vegetation is modelled (incorporating species, functional groups and species-species interactions).

Please cite as: S. Kéfi, A. Vasques, F. Schneider, M. Rietkerk, A.G. Mayor, M. Verwijmeren, R. Diaz-Sierra and M. Baudena. 2016. Response of Mediterranean drylands to increasing pressures. CASCADE Project Deliverable 6.1, 54 pp. Available at: www.cascadis-project.eu/documents

Observational and manipulative field experiments to investigate changes in the plant-soil system in response to external stress. Here the focus is on stress caused by grazing intensity and stress caused by severe drought.

Please cite as:  Garcia Mayor, A. et al. (2017) Identification of critical changes preceding catastrophic shifts: ecosystems affeced by increasing grazing intensity and severe drought. CASCADE Project Deliverable 3.1b. 59 pp. Available at: www.cascadis-project.eu/documents

Observational and manipulative field experiments to investigate changes in the plant-soil system in response to external stress. Here the focus is on stress caused by increasing wild fire recurrence.

Please cite as Garcia Mayor, A. et al. (2015) Identification of critical changes preceding catastrophic shifts: ecosystems affeced by increasing wildfire recurrence. CASCADE Project Deliverable 3.1a. 24 pp. Available at: www.cascadis-project.eu/documents

Report on the use of manipulative field experiments and modelling to examine the role of patch, size, diversity, spatial pattern and ecohydrological feedbacks in dryland restoration and degradation reversal.

Please cite as Bautista, S. et al. (2017) Dryland restoration dynamics and thresholds as a function of plant pattern and diversity. CASCADE Project Deliverable 4.3. 31 pp Available at: www.cascadis-project.eu/documents

 
 
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