Effects of different nutrient compensation treatments following forest fuel extraction on biomass of young Norway spruce (Picea abies (L.) Karst.)

被引：1

作者：

Brandtberg, P. -o. ^{[1
]}

Olsson, Bengt A. ^{[1
]}

Wang, Pei ^{[1
]}

Lundkvist, Helene ^{[1
]}

机构：

[1] Swedish Univ Agr Sci, Dept Ecol, POB 7044, SE-75007 Uppsala, Sweden

来源：

CANADIAN JOURNAL OF FOREST RESEARCH | 2023年 / 53卷 / 03期

关键词：

bioenergy; harvesting residues; Picea abies (L; ) Karst; vitality fertiliser; wood ash; SOIL CHEMICAL-PROPERTIES; WOOD ASH APPLICATION; CONIFEROUS STANDS; ROOT DISTRIBUTION; PINUS-SYLVESTRIS; MINERAL SOILS; VEGETATION MANAGEMENT; LOGGING RESIDUES; GROWTH; FERTILIZATION;

D O I：

10.1139/cjfr-2022-0088

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Whole tree harvesting of forests may require compensation for losses of nutrients and alkalinity. The effects of three different practical ameliorative methods on spruce allometry, total biomass, and nutrient uptake were studied in an experiment in a 3-year-old Norway spruce (Picea abies (L.) Karst.) stand in south-west Sweden. The treatments were one application of the fine fraction of logging residues, one application of granulated wood ash, two applications of an N-free vitality fertiliser, and untreated control. Analysis of covariance showed that spruce needle and stem allometry depended on treatment. Spruce fine root allometry was very variable, showing no discernible effect of treatment. Fine root distribution was shallower in treatments with higher graminoid biomass (vitality and wood ash). Vitality treatment increased average concentrations of Ca, Mg, and Zn in spruce total biomass. Ash treatment only increased the Zn concentration. The average N concentration was similar between treatments. Spruce total biomass per unit area was inversely correlated with graminoid biomass. Measurements of N uptake in spruce and graminoid biomass indicated that there was competition for N between spruce and graminoids. Thus, the effect of nutrient compensation on competition needs to be considered when predicting the effect on the growth of the target species.

引用

页码：188 / 202

页数：15

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