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| Titel |
Control of the spread of inorganic elements by shelterbelt in agricultural landscape |
| VerfasserIn |
L. Szajdak, I. Życzyńska-Bałoniak |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250020891
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| Zusammenfassung |
| A better understanding of the impact of shelterbelt on the decrease the quantities of
chemical compounds in ground water should increase our ability to predict the
improvement of the quality of ground water. The objective of this study was to
evaluate the effect of shelterbelt on the decrease of calcium, magnesium and inorganic
carbon in ground water passing through the shelterbelt from adjoining cultivated
fields.
The investigations were carried out in Turew in Chlapowski’s Agroecological Park
situated 40 km South-West of Poznań (West Polish Lowland). This area is located on loamy
soils, which contains 70% cultivated fields, 12% meadows and pastures and approximately
14% afforestations including well developed network of shelterbelts (mid-field rows of trees
afforestation). The established network of shelterbelts in Turew is the unique in
Europe.
Ground water under cultivated field and shelterbelt from the artificial wells ones a month
during 7 years from 2000 to 2006 was sampled and investigated. Ground water under
shelterbelt flows away from adjoining cultivated field and passing through the shelterbelt. The
first distance of this shelterbelt 104 m long is located on mineral soils (division-autogenic
soils, order-brown forest soils, type-hapludalfs, subtype-glossudalfs) next from 104 to 125 m
on mineral organic soils (division-hydrogenic soils, order-post-bog, soils, type-mucky soils,
subtype-muckous).
Calcium, magnesium and mineral carbon quantities have been investigated in the ground
water of shelterbelts. The differences among the concentrations of calcium, magnesium and
mineral carbon were attributed solely of width of the shelterbelt. Shelterbelt revealed the
improvement in the quality of ground water. The biogeochemical barrier in the form of
shelterbelt efficiently decreases the concentration of chemical substances calcium to 26%,
magnesium to 25% and also mineral carbon 70,5%. Concerns over the environmental impacts
of the elements of agricultural landscapes have focused attention on the study of calcium,
magnesium, mineral carbon in ground water. These investigations have shown high contents
of chemical compounds migrates ground water from cultivated fields. Ground water under
cultivated field revealed high concentrations of calcium, which yearly mean contents are
equaled from 81,9 to 179,2 mg/l. It was proved that biogeochemical barrier such as
shelterbelt efficiency decrease the quantity of chemical compounds in ground water. The
highest decrease of determined forms in the first distance of shelterbelt (62 m) and
ranged for calcium from 26 to 34%, magnesium to 26% and mineral carbon to
71% was observed. On the basis of all aspects it seems that the first distance 62
m of shelterbelt is the most efficient for the function as biogeochemical barrier. |
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