Technique of the hydroseeding in the revegetation of miner rubbish heap

Abstract

In the absence of vegetative cover mining spoils can be subject to leaching, and to erosion by wind and water; as well as being unsightly. Rivers and streams can became clogged or polluted and adjacent areas can be contaminated. Although such wastes can be stabilized by physical means, the alternative is to cover the waste with vegetation. Revegetalion of any reclamation site will occur naturally given time, bu1 usually a more rapid development of vegetation is desirable. So, various approaches to encourage this have been tried. Plant-species selection and establishment techniques are two very important aspects to bear in mind in revegetation approaches. This paper emphasizes the role of successional studies as way to select the promising species as to test the eficacy of hydroseeding as vegetation establishment technique. Results from Mine Fe (Salamanca) reveal the mutifactorial character of natural revegetation, and to allow us to identify, the plant species associated with different revegetation stages. This information can be helpful and applied in the future management of this area. Hydroseeding has, al (he beginning, a positive effect to most of the analyzed parameters. This positive effect disappears quite soon. So, hydroseeding do not affect the natural-revegetation dynamics in Mine Fe, but the process is faster with it.