Žėlinių ir želdinių būklė buvusiame Rizgonių karjere

Abstract

Subsoil resources is an important element in meeting the needs of society , but this has a negative impact on the environment since the open cast mining extraction of useful subsoil resources ( hard minerals ) in industrial and small quarries sensitive areas. These damaged areas must be recultivated. Abandoned mineral quarries of considerable concern for environmentalists. During the construction of the mineral topsoil is normally digested mixed with minerals mined in there, lose all previous features and, of course, fertility. Quarrying should be attributed to rapid ecosystem change, which occurs under external factors (other examples of such a sudden change to clearcut logging, fire or landslide ) . When installing the quarries once change or completely destroyed entire ecosystems community. You can use abandoned quarries for: afforestation, develop agricultural land, the cultivation of useful plants, equipped recreation areas, or simply leave the quarries natural ecosystems to recover and settled biodiversity. In this way, the former quarry afforestation is particularly relevant and significant ecological and economic views. Investigations were carried in Rizgonių quarry, in which was plantation of scot pine and birch. The aim - to investigate that others trees species have grown in query. In conclusions, we also have noticed that in Rizgonių quarry best grows self-alder which accounts for 18% of all tree species and self-birch trees, which accounts for 17% of all trees in the quarry. All parcels species of trees change, planted pine changing with self-alder and with birch, especially those parcels that close to the mature forest.