Effects of forest age on surface drainage water and soil solution aluminium chemistry in stagnopodzols in Wales

1994 ◽  
Vol 77 (1-2) ◽  
pp. 115-139
Author(s):  
S. Hughes ◽  
D. A. Norris ◽  
P. A. Stevens ◽  
B. Reynolds ◽  
T. G. Williams ◽  
...  
Keyword(s):  
Soil Solution ◽  
Drainage Water ◽  
Forest Age ◽  
Surface Drainage ◽  
Aluminium Chemistry

Nutrient Concentrations in Soil Solution in an Alfisol under Grapefruit Production

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 498d-498
Author(s):  
Z.L. He ◽  
A.K. Alva ◽  
D.V. Calvert ◽  
D.J. Banks ◽  
Y.C. Li
Keyword(s):  
Soil Solution ◽  
Fine Sand ◽  
Drainage Water ◽  
Tree Canopy ◽  
Nutrient Concentrations ◽  
Sour Orange ◽  
Parallel Study ◽  
Ph Measurements ◽  
The Mean ◽  
N Rates

A field experiment was conducted in a Riviera fine sand (Alfisol) with 25-year-old `White Marsh' grapefruit trees on Sour orange rootstock to monitor the downward transport of nutrients from fertilization practices. Fertilizer was applied as either dry granular broadcast (three applications/year) or fertigation (15 applications/year) at N rates of 56, 112, 168, and 336 kg/ha per year using a N:P:K blend (1.0:0.17:1.0). Soil solution was sampled bi-weekly from suction lysimeters, installed under the tree canopy, about 120 cm from the tree trunk, at two depths representing above (120 cm) and below (180 cm) the hard pan. The concentrations of K, Ca, and Mg were greater at the 180- than at 120-cm depth, whereas, the converse was true with respect to the concentration of P in soil solution. Over a 2-year period, the mean concentrations of P and K varied from 0.031-0.976 and 150-250 mg·L–1, respectively. Increased rate of fertilization also appeared to increase the concentrations of Ca and Mg in the soil solution. This could be due to effects of slight acidification of the soil with increased rates of ammonium form of N. A parallel study on pH measurements has shown evidence of soil acidification, under the tree canopy, with increased rates of ammonium fertilization. In a bedded grove, the soil solution above the hard pan is likely to seep into the water furrow, which is discharged into the drainage water.

Losses of Diuron, Linuron, Fenac, and Trifluralin in Surface Drainage Water

1975 ◽  
Vol 4 (3) ◽  
pp. 399-402 ◽  
Author(s):  
G. H. Willis ◽  
R. L. Rogers ◽  
L. M. Southwick
Keyword(s):  
Drainage Water ◽  
Surface Drainage

An in situ mini lysimeter with a removable ion exchange resin trap for measuring nutrient losses by leaching from grazed pastures

Soil Research ◽  
1994 ◽  
Vol 32 (6) ◽  
pp. 1389 ◽  
Author(s):  
K Sakadevan ◽  
MJ Hedley ◽  
AD Mackay
Keyword(s):  
Ion Exchange ◽  
Soil Solution ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Drainage Water ◽  
Alternative Methods ◽  
Nutrient Losses ◽  
Undisturbed Soil ◽  
Grazed Pastures

This study describes the construction, installation and evaluation of an in situ mini-lysimeter with a removable ion exchange resin trap for measuring nutrient losses by leaching from grazed pastures. The resin trap efficiently removed solutes from simulated drainage water at a flow rate of 14 mm h-1. Over 88% of each of the solutes was removed from synthetic nutrient solution containing 1.65 mM nitrate-N, 1.65 mM ammonium-N, 0.25 mM sulfate-S (SO2-4-S) and 0.6 mM potassium. In a further test of the system, sulfate leached in simulated rainstorm events from two undisturbed soil cores, taken from legume based pastures of contrasting superphosphate (SSP) fertilizer history following 495 mm of simulated rainfall, was all recovered using the resin trap. Seven times more SO2-4 (21.2 kg S ha-1) was leached and recovered from the resin trap of the core collected from the high fertility (HF, 375 kg SSP ha-1 year-1) site than from the low fertility (LF, 125 kg SSP ha-1 year-1) site (3.1 kg S ha-1). As part of the field evaluation of the technique, lysimeters with resin traps were placed in the field at four sites (8 lysimeters/site) contrasting in fertilizer history, landslope, and dung and urine return. Two additional lysimeters with drainage collection reservoirs (vessels) and eight soil solution samplers were placed on each site to collect drainage water and soil solution. The amount of SO2-4 present in drainage water was more closely related (1:1, R2 = 0.861) to the amount of SO2-4 collected by the resin traps over a period of 9 months than estimates made using soil solution samplers (1:1, R2 = 0.829). The advantages of the resin trap technique over alternative methods for estimating SO4-S leaching losses from field soils are discussed, as are applications of the technique for studying nutrient losses and cycling in grazed pastures.

Duration-controlled grazing of dairy cows. 2: nitrogen losses in sub-surface drainage water and surface runoff

2018 ◽  
Vol 62 (1) ◽  
pp. 48-68 ◽  
Author(s):  
Christine L. Christensen ◽  
Mike J. Hedley ◽  
James A. Hanly ◽  
David J. Horne
Keyword(s):  
Dairy Cows ◽  
Surface Runoff ◽  
Drainage Water ◽  
Nitrogen Losses ◽  
Surface Drainage

Modelling of aluminium chemistry in soil solution of untreated and dolomite treated podzolic soil

Geoderma ◽  
2005 ◽  
Vol 127 (3-4) ◽  
pp. 280-292 ◽  
Author(s):  
Sara J.M. Holmström ◽  
Patrick A.W. van Hees ◽  
Ulla S. Lundström
Keyword(s):  
Soil Solution ◽  
Podzolic Soil ◽  
Aluminium Chemistry

Ponding Surface Drainage Water for Sediment and Phosphorus Removal

1981 ◽  
Vol 24 (6) ◽  
pp. 1478-1481 ◽  
Author(s):  
M. J. Brown ◽  
J. A. Bondurant ◽  
C. E. Brockway
Keyword(s):  
Phosphorus Removal ◽  
Drainage Water ◽  
Surface Drainage

Analysis of inorganic anions in drainage water and soil solution by single-column ion chromatography

1998 ◽  
Vol 823 (1-2) ◽  
pp. 285-290 ◽  
Author(s):  
M.Elena Fernández-Boy ◽  
Francisco Cabrera ◽  
Félix Moreno
Keyword(s):  
Soil Solution ◽  
Ion Chromatography ◽  
Drainage Water ◽  
Inorganic Anions ◽  
Single Column

Losses of nitrate from gaps of different sizes in a managed beech (Fagus sylvatica) forest

2005 ◽  
Vol 35 (2) ◽  
pp. 308-319 ◽  
Author(s):  
E Ritter ◽  
M Starr ◽  
L Vesterdal
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Solution ◽  
Fagus Sylvatica ◽  
Soil Moisture Content ◽  
Field Capacity ◽  
Drainage Water ◽  
Balance Model ◽  
Gap Size ◽  
Water Fluxes

In the ongoing discussion about sustainable forestry, gap regeneration is suggested to reduce nitrate (NO3–) losses from forest ecosystems. The effect of gap formation and gap size on soil moisture and NO3– leaching was studied in two managed beech (Fagus sylvatica L.) stands in Denmark for about 2 years after formation of four gaps (approx. 20 and 30 m in diameter). Soil moisture content, soil solution NO3-N concentrations, and nitrogen (N) concentrations in throughfall and precipitation were measured along transects from the gaps into the surrounding forests. Losses of NO3-N were estimated using the water balance model WATBAL. Soil moisture content in gaps remained close to field capacity throughout the year, while it decreased to 50%–70% of field capacity under the closed canopy during the growing season. Drainage water fluxes, soil solution NO3-N concentrations, and NO3-N losses were increased in the gaps as compared to under the canopy. For the whole study period, losses of NO3-N were 3- to 13-fold higher in the gaps than in the surrounding forests. However, a significant effect of gap size was not found within the range of the investigated gap diameters and canopy heights. Presumably, not only the aboveground canopy gaps, but also the belowground root gaps affected soil moisture and thus drainage water fluxes and NO3- losses.

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