Evaluation of the land reclamation project at the As Pontes Mine (NW Spain) in relation to the suitability of the soil for plant growth
✍ Scribed by C. Monterroso; F. Macías; A. Gil Bueno; C. Val Caballero
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 333 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1085-3278
No coin nor oath required. For personal study only.
✦ Synopsis
The reclamation and monitoring methodologies implemented at the mining waste dump at the As Pontes Lignite Mine in Galicia (NW Spain) are brie¯y described. In addition the factors aecting achievement of reclamation objectives and an evaluation of the factors limiting plant growth on the constructed soils are outlined. The most serious limitations were found in the oldest mine soils constructed from sulphide-bearing spoils; high acidity, toxicity, nutrient de®ciency, seasonal waterlogging due to their impermeability, and compaction. The youngest soils were constructed using sulphidefree spoils as topsoil substitutes and had fewer limitations for plant development. The results show that proper handling of spoils, and paying special attention to selective placement of sulphide bearing materials, are the most important factors in providing a suitable medium for plant growth.