HYPERACCUMULATION OF NI BY ALYSSUM MURALE WALDST. & KIT. FROM ULTRAMAFICS IN BOSNIA AND HERZEGOVINA

Heavy metal tolerance of Pontechium maculatum (Boraginaceae) from several ultramafic localities in Serbia

“…Due to the ferro-magnesium nature of ultramafic rocks, high Fe content is expected (Reeves 1992). However, in our samples these concentrations are even higher than those found by numerous authors in ultramafic substrates of the Balkan Peninsula (Pavlova & Karadjova 2013;Jakovljević et al 2015;Đurović et al 2016;Matko-Stamenković et al 2017;Tomović et al 2018). The amounts of manganese and nickel correspond with those found on the same type of substrata (Reeves et al 2009;Bani et al 2010;Tumi et al 2012;Tomović et al 2018), particularly regarding their total concentrations.…”

“…As in the case of many trace metals, the key factor in determining Zn solubility and mobility is pH: they increase with decrease of pH (Meers et al 2006). Elevated Cr concen-trations represent a constitutive ultramafic feature, and the obtained amounts are in the range of values reported by several authors in samples from Serbia and Bosnia & Herzegovina (Tomović et al 2013(Tomović et al , 2018Matko-Stamenković et al 2017). At the same time, these concentrations are lower than those determined by Bani et al (2010), also in countries on the Balkan Peninsula (Albania, Greece and Bulgaria).…”

“…Quite to the contrary, at high Pb concentrations in the soil, E. vulgare accumulates more than 200 mg kg -1 , indicating the existence of a positive correlation between the concentration in the soil and that in plants (Wójcik et al 2014). The concentrations of Cd are generally low in plant samples, and in P. maculatum this content is even lower than the values obtained in serpentinophytes of the Balkan Peninsula (Jakovljević et al 2015;Đurović et al 2016;Matko-Stamenković et al 2017;Tomović et al 2018). Unlike P. maculatum, E. vulgare efficiently takes up Cd from the soil, with the tissue concentration positively dependent on Cd content in the soil and higher content in the roots than in the shoots (Dresler et al 2014).…”

Phytotechnology with Biomass Production

“…In a large number of experiments some ten plant species, with a focus on Alyssum murale (syn. Odontarrhena chalcidica) (e.g., Matko Stamenković et al, 2017;Rosenkranz et al, 2019), have been tested for their phytomining potential on ultramafic or Ni contaminated soils in differ ent parts of the world. A major outcome from these studies is the positive effect of fertilization with nitrogen (N), phosphorus (P), and potassium (K) and of addition of organic matter on biomass of Ni hyperaccumulating plants, and the increase of Ni uptake and accumulation in shoots by adjustment of soil pH (optimum pH 5-7), addition of sulfur (S), or inoculation with (rhizo-)bacteria and mycorrhiza (Kidd et al, 2018;Nkrumah et al, 2016;Rosenkranz et al, 2019).…”

Energy Demand and Carbon Emission Peak Forecasting of Beijing Based on Leap Energy Simulation Method

“…Because Beijing plans to achieve its carbon emission peak in 2030, its energy intensity will be controlled to stay consistent with China's national level. So, we assume that the energy intensity will decline at a rate of 3% until 2030 (Stamenkovic et al, 2017), followed by a 1.5% decline rate from 2031 to 2050. In total, the energy intensity is expected to decrease by 60% in 2050 compared to its value in 2005.…”