Indicators of nitrate leaching loss under different land use of clayey and sandy soils in southeastern Oklahoma

Silva, R.G.; Holub, Scott M.; Jorgensen, Eric E.; Ashanuzzaman, A.N.M.

doi:10.1016/j.agee.2004.12.018

Cited by 35 publications

(24 citation statements)

References 30 publications

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“…One approach to answer this question is to compare deciduous and coniferous forest stands under comparable local site conditions. Climate , soil type (Silva et al 2005;Boumans et al 2004), land use history (Matson et al 2002), pollutant emission level (Matson et al 2002), successional phase (Aber et al 1989;Å gren and Bosatta 1988;Cairns and Lajtha 2005), distance to forest edge (Weathers et al 2001), and experimental set-up (Bleeker et al 2003) are all known to have a significant impact on the element fluxes observed. The aim of this paper is to find out how coniferous and deciduous broadleaved forests differ in terms of element throughfall (+stemflow) deposition and seepage flux to groundwater.…”

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confidence: 98%

The effect of forest type on throughfall deposition and seepage flux: a review

et al. 2007

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Converting deciduous forests to coniferous plantations and vice versa causes environmental changes, but till now insight into the overall effect is lacking. This review, based on 38 case studies, aims to find out how coniferous and deciduous forests differ in terms of throughfall (+stemflow) deposition and seepage flux to groundwater. From the comparison of coniferous and deciduous stands at comparable sites, it can be inferred that deciduous forests receive less N and S via throughfall (+stemflow) deposition on the forest floor. In regions with relatively low open field deposition of atmospheric N (<10 kg N ha(-1) year(-1)), lower NH(4)(+) mean throughfall (+stemflow) deposition was, however, reported under conifers compared to deciduous forest, while in regions with high atmospheric N pollution (>10 kg N ha(-1) year(-1)), the opposite could be concluded. The higher the open field deposition of NH(4)(+), the bigger the difference between the coniferous and deciduous throughfall (+stemflow) deposition. Furthermore, it can be concluded that canopy exchange of K(+), Ca(2+) and Mg(2+) is on average higher in deciduous stands. The significantly higher stand deposition flux of N and S in coniferous forests is reflected in a higher soil seepage flux of NO(3)(-), SO(4)(2-), K(+), Ca(2+), Mg(2+) and Al(III). Considering a subset of papers for which all necessary data were available, a close relationship between throughfall (+stemflow) deposition and seepage was found for N, irrespective of the forest type, while this was not the case for S. This review shows that the higher input flux of N and S in coniferous forests clearly involves a higher seepage of NO(3)(-) and SO(4)(2-) and accompanying cations K(+), Ca(2+), Mg(2+) and Al(III) into the groundwater, making this forest type more vulnerable to acidification and eutrophication compared to the deciduous forest type.

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confidence: 98%

The effect of forest type on throughfall deposition and seepage flux: a review

et al. 2007

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“…Nitrate leaching from irrigated land depends on soil and climate characteristics, crop patterns, and irrigation and N fertilization management. Several studies have related these variables with nitrate leaching losses in IRF (Casalí et al, 2008;Randall and Mulla 2001;Silva et al, 2005) that may vary by one order of magnitude, from below 20 kg NO 3 -N/ha·year to above 200 kg NO 3 -N/ha·year (Aragüés and Tanji, 2003).…”

Section: Introductionmentioning

confidence: 99%

Irrigation management, nitrogen fertilization and nitrogen losses in the return flows of La Violada irrigation district (Spain)

Barros

Isidoro

Aragüés

2012

Agriculture, Ecosystems & Environment

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Nitrogen (N) pollution induced by irrigated agriculture is a significant environmental problem.The main N inputs and outputs were measured or estimated in the semi-arid La Violada irrigation district (Spain). Data on two periods (1995-98 and 2006-08) were compared and related to observed changes during the decade in cropping patterns and N fertilization and irrigation management. N fertilization exceeded crop N uptake due to over-fertilization of corn in the IRF will be minimized by increasing the irrigation efficiency and decreasing the corn area and its N fertilization rates, particularly when supplemental organic N is applied at pre-sowing.

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“…This relatively high leaching rate of NO 3 in the sand only columns could be associated with the fact that sandy soils are coarse in texture and as such, water percolates through them more rapidly (T. P. Gaines & S. T. Gaines, 1994;Silva et al, 2005;Cameron et al, 2013). Cameron et al (2013) and Silva et al (2005) attributed this to the low water holding capacity of the coarse-textured sandy soils. As stated earlier in the previous sections, sandy soils have low cation exchange capacity and this could also account for the high leaching rate in the sand only columns.…”

Section: Effects Of Biochar On No 3 Leachingmentioning

confidence: 99%

An Investigation Into the Short-Term Effects of Biochar on Nitrate Leaching From Artificial Columns of Sand

Sombo¹

2018

JAS

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Leaching of NO 3 has been shown to be a major problem in coarse-textured sandy soils. It has been suggested that biochar application to sandy soils could reduce leaching of NO 3 . However, how biochar could be used to provide short-term NO 3 leaching reduction in sandy soils has received little research attention. Therefore, the aim of this study was to determine if and how biochar could be used to reduce NO 3 leaching from artificial columns of sand (sandy soil). To achieve this, a simple assay was developed in a controlled temperature room to assess the short-term impacts of biochar on NO 3 leaching from a column containing sand. The capacity to pick-up variations in NO 3 leaching pattern from the sand columns based on the concentrations of the NO 3 solutions used to perfuse the sand columns, as well as, the rate at which these solutions were perfused through the sand columns using this approach was initially established. A pulse chase experiment showed that the NO 3 was very mobile, and once the supply was removed, the column of sand rapidly lost the NO 3 . The exception appears to the inclusion of biochar where this process is slowed down, but eventually the sand column lost all the NO 3 . When oak biochar produced through high temperature pyrolysis (500-600 o C) by a commercial producer (Humko, d.o.o., Bled Sheenjek, Slovenija) was applied to the sand columns at a rate of 10% (w/w), the pattern of NO 3 leaching was modified. Biochar appeared to delay NO 3 leaching from the sand. The extent of this delay, and how it may influence NO 3 availability in the soil for plant uptake requires further research.

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Indicators of nitrate leaching loss under different land use of clayey and sandy soils in southeastern Oklahoma

Cited by 35 publications

References 30 publications

The effect of forest type on throughfall deposition and seepage flux: a review

The effect of forest type on throughfall deposition and seepage flux: a review

Irrigation management, nitrogen fertilization and nitrogen losses in the return flows of La Violada irrigation district (Spain)

An Investigation Into the Short-Term Effects of Biochar on Nitrate Leaching From Artificial Columns of Sand

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