Abstract
Water deficit and salt accumulation in soil are serious problems in crop fields in semi-arid regions, and these problems are likely to depend on active transpiration and selective ion absorption by crop roots. In this study, a large sized soil column system was newly developed, and a preliminary experiment with the system was conducted to examine the system performance for analyses of dynamics of water and ion transport and salt accumulation in soil with special reference to effects of the active and selective absorption of roots of different crops (i.e., corn plants, sunflower plants and no plants). The column system was equipped with on-line systems for the control of groundwater level and the TDR measurement, which enabled time course evaluations of upward flux of the groundwater, volumetric water content of soils at the different depths and electrical conductivity of the extract from the saturated soil. Furthermore, distribution and accumulation of ions in soil layers, plant organs and xylem sap were analyzed using an ion chromatograph. In this column experiment, diurnal and long term daily changes in water movement and ions accumulation in soil affected by characteristics of root absorption were evaluated. This can suggest that this column system is applicable for quantitative analyses of effects of root absorption of different crops on water deficit and salinization in soils, aiming at proposing a scientific method of the crop rotation for the environmentally conscious agriculture in semi-arid regions.
| Original language | English |
|---|---|
| Pages (from-to) | 543-547 |
| Number of pages | 5 |
| Journal | Journal of the Faculty of Agriculture, Kyushu University |
| Volume | 53 |
| Issue number | 2 |
| Publication status | Published - Oct 1 2008 |
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All Science Journal Classification (ASJC) codes
- Biotechnology
- Agronomy and Crop Science
Cite this
Preliminary column experiment on dynamics of water and ion transport in soil affected by root absorption. / Urayama, Kazuki; Sakata, Yoshinobu; Sonoda, Yasutaka; Ebihara, Kenji; Sago, Yuki; Yoshikoshi, Hisashi; Araki, Takuya; Yasutake, Daisuke; Cho, Hiroyuki; Kobayashi, Tetsuo; Masaharu, Kitano.
In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 53, No. 2, 01.10.2008, p. 543-547.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preliminary column experiment on dynamics of water and ion transport in soil affected by root absorption
AU - Urayama, Kazuki
AU - Sakata, Yoshinobu
AU - Sonoda, Yasutaka
AU - Ebihara, Kenji
AU - Sago, Yuki
AU - Yoshikoshi, Hisashi
AU - Araki, Takuya
AU - Yasutake, Daisuke
AU - Cho, Hiroyuki
AU - Kobayashi, Tetsuo
AU - Masaharu, Kitano
PY - 2008/10/1
Y1 - 2008/10/1
N2 - Water deficit and salt accumulation in soil are serious problems in crop fields in semi-arid regions, and these problems are likely to depend on active transpiration and selective ion absorption by crop roots. In this study, a large sized soil column system was newly developed, and a preliminary experiment with the system was conducted to examine the system performance for analyses of dynamics of water and ion transport and salt accumulation in soil with special reference to effects of the active and selective absorption of roots of different crops (i.e., corn plants, sunflower plants and no plants). The column system was equipped with on-line systems for the control of groundwater level and the TDR measurement, which enabled time course evaluations of upward flux of the groundwater, volumetric water content of soils at the different depths and electrical conductivity of the extract from the saturated soil. Furthermore, distribution and accumulation of ions in soil layers, plant organs and xylem sap were analyzed using an ion chromatograph. In this column experiment, diurnal and long term daily changes in water movement and ions accumulation in soil affected by characteristics of root absorption were evaluated. This can suggest that this column system is applicable for quantitative analyses of effects of root absorption of different crops on water deficit and salinization in soils, aiming at proposing a scientific method of the crop rotation for the environmentally conscious agriculture in semi-arid regions.
AB - Water deficit and salt accumulation in soil are serious problems in crop fields in semi-arid regions, and these problems are likely to depend on active transpiration and selective ion absorption by crop roots. In this study, a large sized soil column system was newly developed, and a preliminary experiment with the system was conducted to examine the system performance for analyses of dynamics of water and ion transport and salt accumulation in soil with special reference to effects of the active and selective absorption of roots of different crops (i.e., corn plants, sunflower plants and no plants). The column system was equipped with on-line systems for the control of groundwater level and the TDR measurement, which enabled time course evaluations of upward flux of the groundwater, volumetric water content of soils at the different depths and electrical conductivity of the extract from the saturated soil. Furthermore, distribution and accumulation of ions in soil layers, plant organs and xylem sap were analyzed using an ion chromatograph. In this column experiment, diurnal and long term daily changes in water movement and ions accumulation in soil affected by characteristics of root absorption were evaluated. This can suggest that this column system is applicable for quantitative analyses of effects of root absorption of different crops on water deficit and salinization in soils, aiming at proposing a scientific method of the crop rotation for the environmentally conscious agriculture in semi-arid regions.
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M3 - Article
AN - SCOPUS:57349164999
VL - 53
SP - 543
EP - 547
JO - Journal of the Faculty of Agriculture, Kyushu University
JF - Journal of the Faculty of Agriculture, Kyushu University
SN - 0023-6152
IS - 2
ER -