The article deals with influence of nano particles on genetic code of protists.
COBISS.SI-ID: 2573903
Toxic metals contaminated garden soil rich with organic mater and fines was remediated in a pilotscale. EDTA washing efficiently reduced soil Pb, Zn and Cd soil content and bioavailability for humans through soil ingestion. Remediated soil preserved the function of plant and microbial substrate but did not entirely prevent the accumulation of Cd in the test plants. Effective means of soil rinsing was proposed to remove all mobilized species of toxic metals.
COBISS.SI-ID: 7368313
- The paper deals with soil respiration in the research plot in Podgorski kras (SW Slovenia). Soil respiration was measured during a period of two and a half years on two sites: on the karst pasture and on the succession site where we measured separately in wooded areas, and separately in the grassy patches between wooded areas. We evaluated the dependence of soil respiration on soil temperature and soil moisture using nonlinear model and compared the models between different types of vegetation cover. The results showed minor differences between the types of vegetation cover but that soil respiration is more depended on soil temperature than on soil humidity.
COBISS.SI-ID: 7550841
The kinetics of a stomatal response to sudden increases or decreases of CO2 concentrations (400 to 700 μmol mol–1 CO2 or vice versa) was studied in 13 plant species growing in the field. A comparison of half-time needed to achieve new steady-state gs, indicates similar responses of stomata in grasses when compared to herbs. The stomata of C4 plants responded in approximately five minutes, while the highest closure rate was detected in Echinochloa crus-galli and Digitaria sanguinalis. Opening rates were similar to closing rates and the response as a whole was rather symmetric. In C3 plants, the full response of stomata was much slower. Analysis revealed differences in absolute rates of gs change between C3 and C4 plants.
COBISS.SI-ID: 7440505
The overexploitation and impairment of freshwater resources require agricultural land management strategies that support the preservation of green and blue water flow and various ecosystem services. Historical landscape analysis and the influential driving factors of landscape development provide an essential basis for tackling current environmental questions in land and water management. Hence, this article investigates the influence of historical land use pattern on the hydrological processes and provision of blue and green water flow and storage for man and ecosystems under current climate conditions. Moreover, we discuss in how far these findings could be used to predict or optimise future land management options or as a reference for future land and water management. We used digitalized historical land use maps from 1787, 1827, 1940 and 1984 and a digital land use map of present situation from 2009 for our study areas, which are two small scale Slovenian catchments (Reka and Dragonja). The results showed for both catchments that the influence of land use change on total and green water quantity would be statistically insignificant but would have considerable effects on the seasonal flows.
COBISS.SI-ID: 7364473