RT info:eu-repo/semantics/conferencePaper
T1 Study of the vegetation cover of an environment contaminated by heavy metal sulphides: strategies and specific distribution
A1 Campos, Juan A.
A1 Villena, Jaime
A1 Peco, Jesús
A1 García Noguero, Eva M.
A1 Castro Noblejas, Hugo
A1 Moreno, Marta
A1 Higueras, Pablo
A2 Geografia Humana
K1 Geografía
K1 Sulphide metals pollution
K1 Plant colonization strategies
K1 Pioner plants
K1 Nurse plants
K1 5403 Geografía Humana
AB [EN] After the extraction of sulfide minerals such as galena, sphalerite and pyrite for decades, the abandoned minesites are a sort of mosaic of different substrates related with the different activities carried out on mineral management and processing. After the exploitation time, a slow but steady natural colonization starts by a select group of species, resilient enough to the very harsh conditions. The presence of high levels of heavy metals, acidic pH and a poor water retention are the key limiting factors. The list of the species and their specific role in the colonization strategies have been studied with the aim of determining the physiological or ecological mechanisms involved in overcoming the environmental restrictions. Phragmites australis can be considered as a pioner species, colonizing first the substrate and creating the necessary conditions for other species to stablish themselves in the area. This species creates a shallow network of rhizomes that allows the accumulation of resources (organic matter, finer mineral particles, etc.) that will ease the germination and growth of other species, specially Retama sphaerocarpa. We have observed some interspecific strategies that lead to the improvement of edaphic conditions, increasing the organic matter content, favoring compaction, water retention and some enzymatic activities linked to microbial activity. This study draws predictions on the hypothetical ability to gerenate resources by plants and how different soil types alter plant strategies to achieve a sustainable plant cover, despite trenchant environmental constraints.The general objective of this study is to gather knowledge to understand the relationship between soil properties and species distribution in harsh environment.
PB Agencia eslovaca del medio ambiente
SN 978-80-8213-084-6
LK https://hdl.handle.net/10612/21464
UL https://hdl.handle.net/10612/21464
NO Juan A. Campos, Villena, J., Eva M. García-Noguero, Castro, H., Moreno, M., & Higueras, P. (2022). Study of the vegetation cover of an environment contaminated by heavy metal sulphides: strategies and specific distribution. International Conference Contaminated Sites 2022, 118-122.
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 6, 2024