Veiko Uri, Hardi Tullus, Krista Lõhmus. (2003). Nutrient allocation, accumulation and above-ground biomass in grey alder and hybrid alder plantations. Silva Fennica vol. 37 no. 3 article id 490. https://doi.org/10.14214/sf.490

Keywords: biomass; Alnus incana; Alnus incana x Alnus glutinosa; grey alder; hybrid alder; nutrient allocation; nutrient accumulation

Abstract | View details | Full text in PDF | Author Info

The aim of the present work was to investigate the nutrient (N,P,K) allocation and accumulation in grey alder (Alnus incana (L.) Moench) and hybrid alder (Alnus incana (L.) Moench x Alnus glutinosa (L.) Gaertn.) plantations growing on former agricultural land and to estimate the above-ground biomass production during 4 years after establishment. In August of the 4th year, when leaf mass was at its maximum, the amount of nitrogen accumulated in above-ground biomass of grey alder stand was 142.0 kg ha–1, the amount of phosphorus 16.3 kg ha–1 and the amount of potassium 49.5 kg ha–1. The amount of nitrogen accumulated in a hybrid alder stand totalled 76.8 kg ha–1, that of phosphorus 6.2 kg ha–1 and that of potassium 28.2 kg ha–1. The smaller amounts of N,P and K bound in the hybrid alder plantation are related to the smaller biomass of the stand. Still, the amounts of N,P and K consumed for the production of one ton of biomass were similar in the case of up to 4-year-old grey alder and hybrid alder stands. In the 4th year, the amount of nutrients consumed in one ton of biomass produced were: 16.0 kg N, 1.6 kg P and 5.4 kg K for grey alder and 14.6 kg N, 1.1 kg P and 5.2 kg K for hybrid alder. In the 4th year the total above-ground biomass (dry mass) of grey alder (15750 plants ha–1) amounted to 12.3 t ha–1, current annual increment being 6.7 t ha–1. In hybrid alder stands (6700 plants ha–1), the respective figures were 6.1 t ha–1 and 4.5 t ha–1. Comparison of the production capacity on the basis of mean stem mass in the 4th year revealed that the stem mass of grey alder exceeded that of hybrid alder (0.64 kg and 0.58 kg, respectively). Grey alder outpaced hybrid alder in height growth; in the 4th year after establishment, the mean height of the grey alder stand was 4.6 ± 0.9 m and that of the hybrid alder plantation 3.5 ± 0.9 m.

Uri, Institute of Silviculture, Estonian Agricultural University, Kreutzwaldi 5, 51014 Tartu, Estonia E-mail: vuri@eau.ee
Tullus, Institute of Silviculture, Estonian Agricultural University, Kreutzwaldi 5, 51014 Tartu, Estonia E-mail: ht@nn.ee
Lõhmus, Institute of Geography, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia E-mail: kl@nn.ee

Click this link to register to Silva Fennica.

If you are a registered user, log in to save your selected articles for later access.

Contents alert

Your selected articles
Send to email

Pykäläinen J., (2000) Defining forest owner’s forest-management goals .. Silva Fennica vol. 34 no. 1 article id 644 (remove) | Edit comment

Johansson T., (1999) Biomass production of Norway spruce (Picea abies.. Silva Fennica vol. 33 no. 4 article id 649 (remove) | Edit comment

Larjavaara M., Muller-Landau H. C. (2011) Cross-section mass: an improved basis for woody .. Silva Fennica vol. 45 no. 2 article id 119 (remove) | Edit comment

Siipilehto J., (2011) Local prediction of stand structure using linear.. Silva Fennica vol. 45 no. 4 article id 99 (remove) | Edit comment

Kuusipalo J., Berg M.-A. et al. (1989) A cross-sectional population survey on the consu.. Silva Fennica vol. 23 no. 1 article id 5372 (remove) | Edit comment

Poso S., Paananen R. et al. (1987) Forest inventory by compartments using satellite.. Silva Fennica vol. 21 no. 1 article id 5307 (remove) | Edit comment

Cajander A. K., (1923) What do the forest types stand for? Acta Forestalia Fennica vol. 25 no. 4 article id 7079 (remove) | Edit comment

Nieppola J., (1993) Site classification in Pinus sylvestris L. fores.. Silva Fennica vol. 27 no. 1 article id 5494 (remove) | Edit comment

Johansson T., (1996) Site index curves for European aspen (Populus tr.. Silva Fennica vol. 30 no. 4 article id 5568 (remove) | Edit comment

Cajander A. K., (1930) Characters and meaning of forest types Silva Fennica vol. no. 15 article id 4456 (remove) | Edit comment

Hiltunen V., Kurttila M. et al. (2012) Strengthening top-level guidance in geographical.. Silva Fennica vol. 46 no. 4 article id 909 (remove) | Edit comment

Follow @SilvaFennica