Under the current situation of climate change, the carbon storage in terrestrial ecosystems, particularly in forest soils, becomes very relevant for the mitigation of the increasing CO2 in the atmosphere and the reduction of global warming.
A conference about “The soil and organic matter in ecosystem services provision” has been delivered. After the general introduction of the concept “ecosystem services”, the importance of the regulation service associated to the soil carbon storage for the mitigation of climate change was explained. Examples of the projects RECARE and RESTECO were used to illustrate the importance of soil and its ecosystem services.
The conference was part of the Course “Soil organic matter: methods for analysis, and incidence on the environment and climate change”, coordinated by José María de la Rosa Arranz, held in the IRNAS, CSIC, Seville (Spain), during 16-19 Octobre 2017.
A pdf copy of the conference presentation can be downloaded from Digital CSIC.
The symbiosis between plants and mycorrhizal fungi is a fundamental factor for the phytoremediation of contaminated soils in the Guadiamar Valley.
From the 15th to the 18th of May 2017, Professor Mark Tibbett (University of Reading, UK) visited the IRNAS-CSIC to participate in a collaborative work on the effects of contamination by trace elements on soil biodiversity.
Professor Tibbett gave a conference in the IRNAS´ Seminar Cycle, entitled “The mysterious world of mycorrhizas: Unrecognized attributes of the commonest plant-fungal symbiosis”. The role of mycorrhizas and the plant-fungi-soil interface was remarked, as well as their importance in plant nutrition and stress tolerance. “Bare roots does not exist in nature” he stated, remarking the universality of plant-fungal associations.
The field visit included a general overview of the Aznalcóllar mine complex and the old tailings dams which collapsed, provoking the spill.
In the experimental plot for the long-term study of the effects of amendment addition on soil remediation, the interactions between soil properties (mainly pH), mycorrhizas and colonizing plants were discussed in contaminated and remediated soils.
Lastly, in La Herrería (Sanlúcar la Mayor) field, the relations of different tree species such as stone pine (Pinus pinea), white poplar (Populus alba) and wild olive (Olea europaea) with the soil organic matter underneath, the phytostabilization of trace elements, and the communities of mycorrhizal fungi were discussed.
The RESTECO researcher María T. Domínguez has given the conference “Soil contamination and provision of ecosystem services in the Guadiamar River Basin”, within the Open Classroom program of the University of Córdoba, Spain, on May 9th 2017.
In the conference, the main concepts relative to the role of soil provisioning ecosystem services were introduced. The Guadiamar River Valley was presented as a case study, where many works focused on the impact of soil contamination on the provision of ecosystem services have been carried out.