Journal of Food, Agriculture and Environment

Vol 10, Issue 3&4,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255

The changes of the filtration of precipitation in soil in southeastern Lithuania under the influence of climate conditions 


Liudmila Tripolskaja, Ingrida Verbyliene, Saulius Marcinkonis, Almantas Razukas, Eugenija Baksiene, Danuta Romanovskaja

Recieved Date: 2012-07-20, Accepted Date: 2012-10-06


Influence of climate conditions on change of a filtration of atmospheric precipitation in southwest Lithuania is analyzed. Filtration observations are carried out in lysimeters in Voke Branch of the Lithuanian Research Centre for Agriculture and Forestry in 1987-2007. Fixed, round, lysimeters (n = 11; each covering 1.75 m2) were packed (0.6 m depth) with a sandy loam soil. The period of 1987-2007 in southeastern Lithuania was characterized by increasing atmospheric precipitation. Increased precipitation amount and air temperature in winter (+1.3°C) and spring (+0.9°C) affected the regime of precipitation filtration in sandy loam soil. Compared with the averages of 1987-2007, during the period of 2003-2007 the average annual precipitation filtration increased by 59.1 m-2 (18.2%). During the last period (2003-2007) the intensity of filtration during separate seasons of a year has changed. According to the average of 2003-2007, the tendency of increase in filtration during the spring period by 28.8% was established. More significant increase was recorded in March and May. During the summer period, filtration in comparison with the average data of 1987-2007 has increased by 50.2% and more strongly - in August. The change trend is described by function y = 0.7259x2 - 14.354x + 86.803 R2 = 0.2336. The regression analysis revealed the trend of atmospheric precipitation filtration change during autumn and winter periods; it shows filtration increase. During the period of 2003-2007, as compared with 1987-2007, the average precipitation filtration decreased by 8.3% in the autumn and by 10.4% in winter. 


Precipitation, filtration, climate conditions, sandy soils, lysimeters, seasons of the year

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Environment
Pages: 1359-1363

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