Nitrogen mineralization in sandy salt marsh soils of the Netherlands

Rozema, J.; Nelissen, H. J. M.; Kroft, Marilyn; Ernst, W. H. O.

doi:10.1002/jpln.19771400612

Cited by 12 publications

(2 citation statements)

References 17 publications

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“…Aziz and Nedwell (1979 [1] ) and Henriksen and Jensen (1979 [13] ) used laboratory experiments in order to estimate N mineralization rates in salt marsh soils. In situ studies on N mineralization in European salt marshes are rare (Rozema et al, 1977 [22] ; Scherfose, 1987 [24] ; Vivier, 1997 [32] ; van Wijnen et al, 1999 [30] ). So far, no studies on N mineralization dynamics have been carried out in clayey to silty man-made salt marshes on the Wadden Sea mainland coast.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Sheep Grazing on Net Nitrogen Mineralization Rate in Two Temperate Salt Marshes

et al. 2001

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Nitrogen mineralization rate was studied in grazing trials with three different stocking rates (0, 3, 10 sheep ha‐1) in two man‐made salt marshes, viz. a Puccinellia maritima‐dominated low salt marsh and a high salt marsh dominated by Festuca rubra. Mineralization rates were derived from the amounts of mineral N which accumulated in situ during six‐week incubation periods in tubes containing undisturbed soil cores from the upper 10 cm soil layer. The annual rates of net N mineralization were significantly higher in the better drained, high salt marsh (71 ‐ 81 kg ha‐1 yr‐1) than in the low salt marsh (39 ‐ 49 kg ha‐1 yr‐1). High amounts of belowground litter accumulated in the low salt marsh due to frequent water logging. Both N mineralization and nitrification rate were negatively correlated with soil water content. In the Puccinellia maritima salt marsh, grazing had neither an effect on N mineralization rates during any of the incubation periods nor on annual mineralization rates. In the Festuca rubra salt marsh, N mineralization rates increased earlier during spring at the intensively grazed site than at the moderately grazed and the ungrazed site. N mineralization and nitrification rates were significantly higher at the ungrazed site than at the intensively grazed site during the period of peak net N mineralization from the end of April until mid‐June. Although sheep grazing affected the seasonal pattern of N mineralization in the high marsh, grazing did not affect the annual rate of net N mineralization.

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Section: Introductionmentioning

confidence: 99%

The Impact of Sheep Grazing on Net Nitrogen Mineralization Rate in Two Temperate Salt Marshes

et al. 2001

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“…1). In practice, the rate Nmineralization is often assessed in salt marsh sites by incubating tubes or bottles in the salt marsh soil after removal or cutting of roots and aerial plant parts (to prevent uptake of and At the end of an incubation period the soil content of and is then measured (e.g., Rozema et al 1977, van Wijnen et al 1998b Rates of mineralization and assimilation for USA salt marshes are in the range 100- and exceed values published for European salt marshes measured in different vegetation zones (Table 6). In addition, there is significant variation in the mineralization rate between the various vegetation zones.…”

Section: Nitrogen Mineralization and Assimilationmentioning

confidence: 99%