搜索结果: 1-15 共查到“森林土壤学 stands”相关记录16条 . 查询时间(0.063 秒)
Effects of vegetation succession on soil microbial stoichiometry in Phyllstachys edulis stands following abandonment
vegetation succession soil microbial stoichiometry Phyllstachys
2024/5/10
Moso bamboo (Phyllostachys edulis) is China's most important economic bamboo species. With a continuous decline in the value of its shoots and timber and an increase in affiliated labor and production...
Quality of organic and upper mineral horizons of mature mountain beech stands with respect to herb layer species
forest floor top soil layers soil chemical characteristics Calamagrostis villosa Vaccinium myrtillus Avenella flexuosa
2016/5/11
The study analyses the chemical properties of the soil in open-canopy beech stands in relation to the predominant species of ground vegetation. A hypothesis is examined whether the predominant ground ...
Forest floor and soils in limed stands of substitute species in Klášterec nad Ohří forest district in the Krušné hory Mts.
forest floor Kruš né hory Mts. liming soil stands of substitute species
2015/3/27
Forest ecosystems of the Krušné hory Mts. affected by long-term air pollution were finally disintegrated. The tree species composition has been changed in ecosystems disturbed in this way. Liming...
Species composition in low mountain beech (Fagus sylvatica L.) stands in the Bieszczady National Park under the global warming
beech stands species composition climate changes
2015/3/16
The author analyzes the changes in the tree species composition of Dentario glandulosae-Fagetum Klika 1927 em. Mat. 1964 in the mountain stands of Bieszczady National Park in 1993?003. The analysis ta...
Humus conditions and stand characteristics of artificially established young stands in the process of the transformation of spruce monocultures
soil forest floor reserves and forms pH
2015/3/16
The main reason for the transformation of spruce monocultures at sites of mixed broadleaved forests is to create more natural relationships between the species structure of a stand and soil processes....
Production and humus form development in forest stands established on agricultural lands ?Kostelec nad 萫rn齧i lesy region
afforestation agricultural lands tree species
2015/3/16
The afforestation of agricultural lands was carried out under different site and ecological conditions, including lower and medium elevated localities. The present study documents the rapidity of accu...
Humus conditions of stands with different proportion of Douglas fir in the H鵵ky Training Forest District and K鴗iny Training Forest Enterprise
species composition soil forest floor reserves
2015/3/16
The paper presented evaluates reserves and chemical composition of forest floor of three stands of Douglas fir, spruce and spruce with beech at acid sites (3K) in the H鵵ky Training Forest District (TF...
Comparison of deposition fluxes on the open area and in mountain spruce stands of different density
throughfall Norway spruce Moravian-Silesian Beskids Mts
2015/3/16
To better understand the chemical transformation of rainfall after the passage through the canopies it is necessary to study throughfall deposition fluxes within forest stands. The comparison of bulk ...
Comparison of mycobiota of diverse aged spruce stands on former agricultural soil
ectotrophic stability of forest species spectrum of macromycetes mycorrhizae
2015/3/16
The mycological conditions on study plots established in forests growing on former agricultural farm lands were studied. In young spruce stand (8?0 years) reduced and unstable spectrum of macromycetes...
Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands
humification nutrition cation exchange capacity (CEC)
2015/3/6
The soil is an irreplaceable component of forest ecosystems. Soil-forming processes directly influence element cycling (EC). Plant-soil interaction is a specific part of EC. Plant-soil interactions we...
Geometridae (Insecta: Lepidoptera) in stands of substitute species with the dominant position of birch
larvae Betula pendula Kruš né hory Mts.
2015/3/3
The species spectrum of Geometridae, their seasonal and population dynamics and importance for the
stability of birch stands in the air-polluted area of the Krušné hory Mts. was derived from a ...
Structure, growth and increment of the stands in the course of stand transformation in the Klokočná Forest Range
uneven-aged forest stands forest stand transformation
2015/3/3
This paper deals with transformation of pure even-aged forest stands to uneven-aged irregular stands on
an example of the Klokočná Forest Range. The fully operational management system accordin...
Isotope ratios and concentration of N in needles, roots and soils of Norway spruce (Picea abies [L.] Karst.) stands as influenced by atmospheric deposition of N
N-deposition 15N nitrogen spruce soil
2015/2/6
This study aims to investigate the changes in isotope ratios in foliage and soils of two Norway spruce (Picea abies [L.] Karst.) forests greatly differing in their atmospheric N deposition and climati...
Retardation of Nitrogen Leaching by the NO3– Adsorption in the Subsoil in a Watershed of Old Japanese Cedar and Cypress Stands
anion adsorption column experiment forest cutting subsoils volcanic ash soils
2009/8/25
Volcanic ash soils contain appreciable quantities of anion adsorption capacity (AEC) due to the variable charge, and they adsorb anions by non-specific adsorption. To study the effect of this characte...
Aspen regeneration, forage production, and soil compaction on harvested and grazed boreal aspen stands
forest grazing Peace River region forest soil
2009/2/11
The objective of our study was to determine the effects of timber harvesting and cattle grazing on aspen regeneration, forage production, and soil compaction on aspen cutblocks in the Peace River regi...