Analysing Wood Density and Biomass: A Case Study of Forest Plantations From Moldova Noua Waste Heaps, Romania

Abstract

The present paper emphasizes the possibility of using wood from the plantations installed on waste heaps by analysing the density of wood mass and establishing the biomass of species planted on the waste heaps from Moldova Noua. In order to determine wood biomass for the analysed species, wood samples were gathered from a specific sample area. As such, their volume and mass were established both before and after drying them in a stove at a temperature of 105 degrees Celsius for 24 hours. The plantations biomass was calculated by using wood density according to the work method previously described as well as the wood mass volume per hectare. The last element was determined after biometric measurements realized in 12 sample surfaces of 100 square meters each, arranged in four variants with three recursions. In the specific case of Moldova Noua waste heaps, the values obtained for wood density attest the high-quality wood of these plantations from the point of view of their density, in comparison with the wood from similar species grown under favourable vegetation conditions. Furthermore, analysing the productivity of plantations installed on the waste heaps from Moldova Noua, attest the framing of these plantations in an inferior production class from a productive point of view. The papers conclusions discuss the obtained results in the context of data from specialty literature concerning the productivity and wood density of forest plantations from the waste heaps located in Moldova Noua.

Analysis of Chemical Properties of Forest Soils in Dobrogea Plateau

“…Regarding base saturation degree, the values for the phaeozem in the Dobrogea Plateau (figure 4) confirm that it is an eubazic soil and its values are closer to those of phaeozems in other plains [9][10][11] (table 2).…”

“…Analyzing the values of the other types of soils (Table 2) it was found that the values of the first horizon Ao of the eutric cambisol, preluvisol and luvisol are higher than the values of the same soils in other parts of the country [9][10][11]. Total cationic exchange capacity (T) If the total cationic exchange capacity is analyzed then the three soil types with the values between 15 and 25 miliequivalents per 100 grams of soil, respectively eutric cambisol, luvisol and preluvisol have a high total cationic exchange capacity and chermozem and phaeozem have a very high values of total cationic exchange capacity with values exceeding 25 miliequivalents per 100 grams of soil (table 3 and figure 5).…”

Chemical Properties Transformations of Copper Waste Heaps from Moldova Noua as a Result of their Afforestation

“…Flotation waste heaps (also known as decantation ponds), a result of storing material derived from the flotation process represent anthropic field surfaces in which vegetation development is hard due to sterile instability. This instability is accentuated in the case of Moldova Nouă by winds characteristic to this area [11]. Dust pollution in Moldova Nouă is a result of these surfaces and of the strong wind, and has negative effects even on the other side of the Danube.…”