Urban areas with trees provide several ecosystem services to citizens. There is a growing interest in for the removal of air pollutants such as particulate matter. The objective this paper show study on variation intercepted matter concentration (IPMC) by tree leaves megacity Bogotá (Colombia). relationship between IPMC and PM2.5 concentrations observed quality stations two urban zones differen...

Elongating shoots of rapidly growing clones of Salix viminalis L. (clone 683-4) and Salix dasyclados Wimm. (clone 908) harvested in early August were analyzed for endogenous gibberellins (GA). Distribution of GA-like activity, determined by Tan-ginbozu dwarf rice microdrop bioassay after reverse phase C(18) high performance chromatography, was similar for both species. For S. dasyclados, combin...

Fluxes of water and carbon dioxide from short-rotation Salix viminalis L. were measured at leaf, tree and stand scales using porometer, chamber and micrometeorological techniques, respectively. At all three scales, instantaneous water use efficiency exhibited a similar dependence on vapor pressure deficit (deltae) with values of 21, 13 and 10 g CO(2) per kg H(2)O for deltae of 0.5, 1.0 and 1.5 ...

The Salix genus includes many species with various uses: wood production, biomass, animal feed, source of salicylic acid, land reclamation, biofuel, a.o. In order to establish a collection potential genitors, resistance genes stressors, 39 accessions were collected in 2015 from Banat and Oltenia, Romania. This paper presents an evaluation 20 accessions, belonging 7 species, polluted or degraded...

Our paper presents the hammer mill working process optimization problem destined for milling energetic biomass (MiscanthusGiganteus and Salix Viminalis). For study, functional constructive parameters of were taken into consideration in order to reduce specific energy consumption. The consumption dependency on rotor spinning frequency sieve orifices use, as well material feeding flow, correlatio...