THE ECOLOGICAL RECONSTRUCTION OF THROUGH AFFORESTATION OF MONASTERY VALLEY DUMP WITH THE OF 226 HA, RESULTED BY THE SURFACE MINING

Abstract

The Monastery Valey Dump has an area of 226 ha, the afforestation of this landfill was done in the autumn of 2009 using the afforestation composition 100 Sc (Salcâm –Robinia pseudacacia), the planting scheme: 2 x 1 (2 m between rows and 1 m between rows in a row ). Before carrying out the afforestation works were carried out preparation of the land: the cutting of the grassy vegetation, on approximately 108 ha, the plowing of the land in the sections with low slope, the two-way discussion in the sections covered with plowing. installed the test markets of circular shape of 200 sqm, 226 test markets, in order to determine the catch percentage in the spring of 2010. The catch rate in the spring of 2010 was 77.63%, according to the inventory made in the test markets. Due to the drought during the summer, there were losses among the seedlings of about 10% of the planted area. During 2010, 2011 , 2012 and 2013 were carried out maintenance work of the plantations, consisting of two seedlings and a decomposition each year of vegetation. At the annual control, in the autumn of 2013, the success rate of the plantation was 56.4%. It should be mentioned that on the valley of the Monastery Valley, in micro-depressions, where the water is stagnant, the acacia tree became dry, and in its place were introduced into biogrups, species tolerant to the humidity demand: - ash - Fraxinus excelsior L., poplar white - Populus alba L., black poplar, cork - Populus nigra L. Although some plantations on these dumps studied are of the same age, the dimensions of these trees vary depending on the conditions of competition between individuals, depending on the biotic factors and abiotics.