The impact of different tillage treatments on hydraulic conductivity of loamy soil
Water infiltration into the soil profile, surface runoff and soil erosion in arable lands depend on the conditions of the top layer. The tillage treatment of the top layer plays a key role in changes of the hydro-physical properties, mainly saturated hydraulic conductivity Ks of the surface layer. T...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Mendel University Press
2012-01-01
|
| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| Subjects: | |
| Online Access: | https://acta.mendelu.cz/60/5/0109/ |
| _version_ | 1818807592038694912 |
|---|---|
| author | Ivana Kameníčková L. Larišová A. Stoklásková |
| author_facet | Ivana Kameníčková L. Larišová A. Stoklásková |
| author_sort | Ivana Kameníčková |
| collection | DOAJ |
| description | Water infiltration into the soil profile, surface runoff and soil erosion in arable lands depend on the conditions of the top layer. The tillage treatment of the top layer plays a key role in changes of the hydro-physical properties, mainly saturated hydraulic conductivity Ks of the surface layer. The aim of this study was to asses the impact of different tillage treatments on hydraulic conductivity in the locality Bohaté Málkovice. Field experimental works in this area were performed in 2009 and were repeted in 2011 on Haplic Chernozem, medium heavy loamy soil. The experimental area was divided into two parts; top layer of these plots was cultivated by applying conventional and reduced tillage treatment. Both these plots were sown with spring barley (Hordeum vulgare). For the field measurement of water infiltration into the soil was used double-ring infiltrometer (2009, 2011) and Minidisk infiltrometer (2011). Near the point were the infiltration was measured, the soil samples were always collected for laboratory determination of basic physical properties of soil (bulk density, porosity, initial and saturated water content, aeration of the soil) and saturated hydraulic conductivity Ks. For laboratory determination of Ks was used permeameter with constant gradient.For evaluation of saturated hydraulic conductivity Ks using the double-ring infiltration method was used Philip’s three-parameter equation and for evaluation of unsaturated hydraulic conductivity K(h) using Minidisk infiltrometer was used Zang’s method. After two years of using repeatedly applied different tillage treatments was significantly influenced saturated hydraulic conductivity Ks. The Ks value increased approximately six times for reduced tillage and more than three times for conventional tillage. Laboratory determined average values of Ks were compared with the average estimates of Ks from infiltration tests. The results were burdened by a number of errors (compaction, preferential flow). These mean values were higher for conventional and reduced tillage. Unsaturated hydraulic conductivity K(−2cm) for reduced tillage was higher, for conventional tillage decreased approximately three times. |
| first_indexed | 2024-12-18T19:28:06Z |
| format | Article |
| id | doaj.art-94b26c1093a9400ba082e425492217a4 |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-12-18T19:28:06Z |
| publishDate | 2012-01-01 |
| publisher | Mendel University Press |
| record_format | Article |
| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-94b26c1093a9400ba082e425492217a42022-12-21T20:55:49ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102012-01-0160510911410.11118/actaun201260050109The impact of different tillage treatments on hydraulic conductivity of loamy soilIvana Kameníčková0L. LarišováA. StokláskováÚstav vodního hospodářství krajiny, Fakulta stavební, Vysoké učení technické v Brně, Veveří 95, 662 37 Brno, Česká republikaWater infiltration into the soil profile, surface runoff and soil erosion in arable lands depend on the conditions of the top layer. The tillage treatment of the top layer plays a key role in changes of the hydro-physical properties, mainly saturated hydraulic conductivity Ks of the surface layer. The aim of this study was to asses the impact of different tillage treatments on hydraulic conductivity in the locality Bohaté Málkovice. Field experimental works in this area were performed in 2009 and were repeted in 2011 on Haplic Chernozem, medium heavy loamy soil. The experimental area was divided into two parts; top layer of these plots was cultivated by applying conventional and reduced tillage treatment. Both these plots were sown with spring barley (Hordeum vulgare). For the field measurement of water infiltration into the soil was used double-ring infiltrometer (2009, 2011) and Minidisk infiltrometer (2011). Near the point were the infiltration was measured, the soil samples were always collected for laboratory determination of basic physical properties of soil (bulk density, porosity, initial and saturated water content, aeration of the soil) and saturated hydraulic conductivity Ks. For laboratory determination of Ks was used permeameter with constant gradient.For evaluation of saturated hydraulic conductivity Ks using the double-ring infiltration method was used Philip’s three-parameter equation and for evaluation of unsaturated hydraulic conductivity K(h) using Minidisk infiltrometer was used Zang’s method. After two years of using repeatedly applied different tillage treatments was significantly influenced saturated hydraulic conductivity Ks. The Ks value increased approximately six times for reduced tillage and more than three times for conventional tillage. Laboratory determined average values of Ks were compared with the average estimates of Ks from infiltration tests. The results were burdened by a number of errors (compaction, preferential flow). These mean values were higher for conventional and reduced tillage. Unsaturated hydraulic conductivity K(−2cm) for reduced tillage was higher, for conventional tillage decreased approximately three times.https://acta.mendelu.cz/60/5/0109/tillage treatmenthydraulic conductivity <i>K</i><sub>s</sub>unsaturated hydraulic conductivity <i>K</i>(<i>h</i>)double-ring infiltration methodMinidisk infiltrometer |
| spellingShingle | Ivana Kameníčková L. Larišová A. Stoklásková The impact of different tillage treatments on hydraulic conductivity of loamy soil Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis tillage treatment hydraulic conductivity <i>K</i><sub>s</sub> unsaturated hydraulic conductivity <i>K</i>(<i>h</i>) double-ring infiltration method Minidisk infiltrometer |
| title | The impact of different tillage treatments on hydraulic conductivity of loamy soil |
| title_full | The impact of different tillage treatments on hydraulic conductivity of loamy soil |
| title_fullStr | The impact of different tillage treatments on hydraulic conductivity of loamy soil |
| title_full_unstemmed | The impact of different tillage treatments on hydraulic conductivity of loamy soil |
| title_short | The impact of different tillage treatments on hydraulic conductivity of loamy soil |
| title_sort | impact of different tillage treatments on hydraulic conductivity of loamy soil |
| topic | tillage treatment hydraulic conductivity <i>K</i><sub>s</sub> unsaturated hydraulic conductivity <i>K</i>(<i>h</i>) double-ring infiltration method Minidisk infiltrometer |
| url | https://acta.mendelu.cz/60/5/0109/ |
| work_keys_str_mv | AT ivanakamenickova theimpactofdifferenttillagetreatmentsonhydraulicconductivityofloamysoil AT llarisova theimpactofdifferenttillagetreatmentsonhydraulicconductivityofloamysoil AT astoklaskova theimpactofdifferenttillagetreatmentsonhydraulicconductivityofloamysoil AT ivanakamenickova impactofdifferenttillagetreatmentsonhydraulicconductivityofloamysoil AT llarisova impactofdifferenttillagetreatmentsonhydraulicconductivityofloamysoil AT astoklaskova impactofdifferenttillagetreatmentsonhydraulicconductivityofloamysoil |