MASS LOSS IN A FORESTED BOG: RELATION TO HUMMOCK AND HOLLOW MICRORELIEF

1985 ◽  
Vol 65 (2) ◽  
pp. 375-378 ◽  
Author(s):  
K. W. FARRISH ◽  
D. F. GRIGAL

The importance of microrelief in relation to mass loss was studied in a Minnesota ombrotrophic forested peatland. Litter and paper strips placed in hummocks for 1 yr lost significantly more mass (two and three times, respectively) than similar material placed in hollows. Less favorable environmental conditions for decomposition, especially lower temperature, reduced decomposition in the hollows. Key words: Peatlands, ombrotrophic, decomposition, Histosols

Author(s):  
A. Kizun

Regional characteristics and diversity of Podiliya environmental conditions are considered, and there is shown that they were favorable to the settlement processes and performed multiple functions at all stages of history, one of which is the ability to use environmental conditions diversity as a source of physical and spiritual recovery. Special attention is given to the Podiliya landscapes formation, as one of the attraction factors. Key words: environmental conditions, landscape, tourism, recreation, region, forest-steppe.


Author(s):  
N. Blazhko

Reviewed the current state of wetland landscape systems (PLC) Lviv region. Highlighted areas PLC of good ecological status, with a satisfactory ecological condition and unsatisfactory environmental conditions. Key words: overmoistened landscape systems (OLS)peat, peat, drainage improvement, environmental stabilizing factors, environmental destabilizing factors.


2012 ◽  
Vol 518-523 ◽  
pp. 1913-1917
Author(s):  
Fang Qin Guo ◽  
Wei Chen

The effects of N deposition induced by environmental pollution on litter decomposition rate in Shenyang city are analyzed by the reciprocal transplant experiment. By contrasting environments and intraspecific variations in Cortex Phellodendri Chinensis leaf litter quality on mass loss rates to investigate the effects of N deposition on mass loss rates in urban and suburb. The results showed that N deposition in urban significantly affected litter decomposition rate by affecting litter quality and environmental conditions. There was a faster decomposition rate when the environmental conditions or litter quality was affected by N deposition.


1991 ◽  
Vol 71 (3) ◽  
pp. 947-949 ◽  
Author(s):  
Athanasios P. Papadopoulos ◽  
Chin S. Tan

Three spring and two fall crops of greenhouse tomato (Lycopersicon esculentum L. Mill; various cultivars) grown in "Harrow" peat bags were irrigated 1, 4, 8 or 16 times daily. All plants received the same volume of fertilizer solution which varied with time from 0.2 to 1.0 L plant−1 d−1 according to crop and environmental conditions. The results showed little or no effect of irrigation frequency on early or total yield, number of grade no. 1 fruit, or fruit size. Key words: Lycopersicon esculentum, marketable yield


2019 ◽  
Vol 24 (3) ◽  
Author(s):  
Agnieszka Lipińska-Grobelny ◽  
◽  
Marta Jędrasik ◽  

The aim of the research was to check whether there is a relationship between the perception of the workplace by the employee as attractive and the level of job satisfaction experienced by him/her. These analyzes are part of the search for environmental conditions of job satisfaction. The study group consisted of 100 office employees were asked to complete three questionnaires: Job Description Questionnaire by Neuberger and Allerbeck, Job Affect Scale by Brief, Burke, George, Robinson and Webster, and authors’ tool to measure the physical assessment of attractiveness the workplace. The results obtained confirm that the attractiveness of the workplace together with the perception of individual elements of space arrangement are related to job satisfaction, both in the emotional and cognitive dimensions. Thus, the results can be a premise to be used by the employer in the process of building an employer branding as inside-out as well as outside-in. Key words: workplace attractiveness, job satisfaction


2021 ◽  
Vol 29 (1(145)) ◽  
pp. 26-34
Author(s):  
Patrycja Miros-Kudra ◽  
Karolina Gzyra-Jagieła ◽  
Michał Kudra

Compostable biodegradable plastics are an ecological alternative to traditional products based on petroleum derivatives, whose post-use waste may pollute the natural environment. Modern polymer materials show the functional properties of plastics obtained by conventional methods, but they also may be degraded as a result of biochemical transformations in composting. This allows such materials to be included in the scheme of the currently implemented circular economy, which does not generate post-consumer waste. This paper presents methods for the assessment of the biodegradation process of selected agricultural nonwovens produced from commercial PLA 6252D polylactide, supplied by Nature Works® LLC, USA. The agricultural nonwovens tested, obtained by the spun-bond technique, were characterised by different degrees of crystallinity in the range from 11.1% to 31.4%. Biodegradation tests were carried out as simulated aerobic composting while maintaining constant environmental conditions in accordance with test procedures based on PN-EN/ISO standards using the method of sample mass loss determination. Gel chromatography (GPC/SEC) and FTIR spectroscopy were also applied to assess the degree of biodegradation. The aim of this study was to evaluate the effect of the crystallinity of nonwoven made of PLA 6252 D on its degradation in a compost environment.


Author(s):  
S. Pozniak ◽  
V. Haskevich ◽  
M. Pshevlotsky ◽  
O. Teleguz

The article analyzes the agro-ecological situation and problems of soil use in Lviv region. It is established that the conduct of agriculture is often not the landscape and environmental conditions of the area and agro-ecological conditions of cultivation of agricultural crops. In soils have become widespread degradation processes, such as water and wind erosion, acidification, dehumidification, the depletion of elements of the other power plants. The measures of rational use and protection of soils are proposed. Key words: Lviv region, soil, agro-ecological state of, degradation, soil protection.


2021 ◽  
Vol 03 (01) ◽  
pp. 81-84
Author(s):  
Aytən İlham qızı Zeynalova ◽  

There was an urgency of application and comparative studying in farms surpassing quantitative and the quality indicators of geographically remote grades of a clap which are grown up in cotton-growing economy of republic, imported of domestic and foreign countries. Researches have shown that Gandzha-110 in comparison with foreign grades of a cotton it is possible to explain the superiority of biomorphological features of a grade good adaptation of a local grade to is soil-environmental conditions republics. Key words: a clap, a grade, boxes, a fibre exit, a seed, the vegetation period


2008 ◽  
Vol 25 (4) ◽  
pp. 598-606 ◽  
Author(s):  
R. Branch ◽  
A. T. Jessup ◽  
P. J. Minnett ◽  
E. L. Key

Abstract Extensive comparisons are made of the infrared sea surface skin temperature Tskin measured by the Calibrated Infrared In situ Measurement System (CIRIMS) and the Marine-Atmospheric Emitted Radiance Interferometer (M-AERI). Data were collected from four separate deployments on the NOAA research vessel (R/V) Ronald H. Brown and the U.S. Coast Guard (USCG) Polar Sea over a wide range of latitudes and environmental conditions. The deployment time totaled roughly 6 months over a 4-yr period and resulted in over 7000 comparison values. The mean offset between the two instruments showed that CIRIMS consistently measured a lower temperature than the M-AERI, but by less than 0.10°C. This mean offset was found to be dependent upon sky condition, wind speed, and ship roll, which implies the offset is likely due to uncertainty in the emissivity. The CIRIMS Tskin was recomputed using two alterative emissivity values, one based on emissivity measured by the M-AERI and the other based on a wind-speed-dependent model. In both cases, the recomputation of the CIRIMS Tskin significantly reduced the mean offset. The overall standard deviation between the M-AERI and CIRIMS Tskin was 0.16°C, did not significantly depend on environmental conditions, and was within the expected values of instrument and comparison uncertainties. These comparisons demonstrate the success of CIRIMS in achieving good agreement with the M-AERI over a wide range of conditions. The results also highlight the importance of the sea surface emissivity when measuring the ocean surface skin temperature.


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