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Agricultural Tile Drainage Detection within the Year Using Ground Penetrating Radar

100%

Karásek P. , Nováková E.

Journal of Ecological Engineering

2020

tom Vol. 21, nr 4

203--211

The aim of this study was to identify the tile drainage systems within the year (from spring to autumn) using the ground penetrating radar (GPR) geophysical method. The measurements were performed in the experimental locality Dehtáře in the Bohemo-Moravian Highland (Czech Republic) in the years 2016 and 2017. The profiles located in the drained area were repeatedly measured together with the drainage discharges, soil moisture and groundwater level. The best visibility of tile drains was observed during snowmelt (in March and April) when the drainage discharges usually reach their maximum. In other months, the visibility of the drains was variable, but mostly worse. For a reliable detection of individual drains, the measurements above the drainage must be performed in several profiles. Under the conditions of the Czech Republic, the best results were obtained by a 500 MHz frequency antenna.

Forest reclamation in the Lusatian Coal Mining District (Germany)

100%

Houbold-Rosar M. , Knoche D.

Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski

2007

tom nr 133 (13)

162-172

This paper offers practical advice for the site adapted afforestation after lignite mining in Lusatia, Germany. The dumped substrates are characterized by low availability of nitrogen and phosphorous and are in most cases free of humus. Pyrite oxidation in Tertiary substrates leads to extreme acidity. However, these properties limiting plant growth can be modified by a site-adapted basal amelioration with limestone and special measures of NPK fertilization. Thereby, even on extremely acid sulphurous mine soils, productive forests can be established. In good agreement with the natural vegetation of the region the afforestation with common oak, sessile oak and small-leaved lime is favoured for better substrates, like carboniferous loamy sand or loam. On sandy and gravely mine soils with low sorption capacity mixed stands with Scots pine, sessile oak and birch are suggested. The afforestation (spacing, planting method, mixing proportion) should be carried out according to experiences from the reforestation of unmined locations.

Effect of soil liming on European beech (Fagus sylvatica L.) and sycamore maple (Acer pseudoplatanus L.) plantations

84%

Balcar V. , Kacalek D. , Kunes I. , Dusek D.

Folia Forestalia Polonica. Series A . Forestry

2011

tom 53

nr 2

Support of European beech (Fagus sylvatica L.) and sycamore maple (Acer pseudoplatanus L.) plantations by amelioration has been tested in air-polluted sites in the mountains since 1993. The research locality is a site with humic podzol soils at an altitude of 960 m a.s.l. Dolomitic limestone (1 kg per tree) was mixed with soil used for planting tree seedlings. According to the results of a 15-year investigation (1993– 2008), liming had a positive effect on beech tree growth, while the positive effect of liming on tree growth was temporary in the case of sycamores. Ca content was higher in the limed beech plantations throughout the observation period. Soil analyses (sampled in 2002) showed that the application of dolomitic limestone influenced soil conditions markedly in terms of increased pH. The pH values measured in H2O increased from 4.9 to 6.2 for beeches and from 4.3 to 6.1 for sycamores.