搜索结果: 1-15 共查到“林木遗传育种学 Forest”相关记录16条 . 查询时间(0.125 秒)
Impact of logging intensity on stem density, basal area and biodiversity indices five years after logging in a Caspian hardwood forest
harvesting intensity forest biodiversity northern Iran
2017/6/26
The aim of the present study was to analyse the impacts of different logging intensities after five years from logging including non-logged, low (3.4 felled stems per hectare), medium (5.2 felled stem...
Generalized height-diameter models for Fagus orientalis Lipsky in Hyrcanian forest,Iran
Oriental beech dominant height forest models evaluation validation
2016/10/14
In this study, 39 generalized height-diameter prediction models were developed for Oriental beech (Fagus orientalis Lipsky) in the Hyrcanian forest in Iran. Data were collected from 75 permanent sampl...
Pathogenicity of Fusarium spp. associated with diseases of Aleppo-pine seedlings in Algerian forest nurseries
Pinus halepensis Fusarium redolens
2015/5/5
In northwestern Algeria, the production of Aleppo pine (Pinus halepensis Mill.) seedlings in four nurseries is hindered by the damping-off disease. Results obtained indicated that Fusarium spp. are co...
Production impacts of forest tree breeding on an example of Norway spruce
economic efficiency forest tree breeding growth Norway spruce production
2015/3/19
The present paper evaluates the height, diameter and stem volume of parental tree progenies. These Norway spruce progenies are compared with the control estimated from tables. The control was overperf...
Growth of wild cherry (Prunus avium L.) in a mixture with other species in a demonstration forest
stand forming species stand crown layer tree classes
2015/3/16
Wild cherry is one of the noble hardwood species that increase the biodiversity of our forests and at the same time it could increase the income for forest owners. The preconditions for achieving thes...
Possibilities of using rooted cuttings of European beech (Fagus sylvatica L.) for stabilisation of forest ecosystems
beech rooted cuttings plantings
2015/3/5
Vegetative propagation of forest tree species is of great importance not only for breeding programmes but also for the conservation of valuable populations of tree species. Important is also a possibi...
Structural diversity change and regeneration processes of the Norway spruce natural forest in Babia hora NNR in relation to altitude
Norway spruce virgin forest
2015/3/3
The research was focused on exploring the dynamics and forms of regeneration processes and structural
diversity of the Norway spruce virgin forest in Babia hora NNR in relation to altitude. In each ...
Utilisation of mathematical models and growth simulators for creating forest management plans and planning the tending felling
mathematical modelling of development of mensurational variables spruce growth simulators SILVA 2.2 tending felling
2015/2/2
The paper describes modelling of forest development and its utilisation for forest management planning, specifically modelling of growth mensurational variables of the two main commercial species – sp...
Partitioning rainfall into throughfall, stemflow, and interception loss in an oriental beech (Fagus orientalis Lipsky) forest during the growing season
Beech growing season interception loss throughfall
2010/2/24
Partitioning gross rainfall (GR) into throughfall (TF), stemflow (SF), and interception loss (I), which has a very significant effect on water balance and the nutrient cycle in forest ecosystems, was ...
The Species Composition of Soil Seed Banks in the Ooyamazawa Riparian Forest,in the Chichibu Mountains,Central Japan
Betula grossa Euptelea polyandra Fraxinus platypoda stand germination test zoochorous seed
2009/8/24
We examined the species composition of soil seed banks (to 5 cm depth), using germination tests, for the Ooyamazawa riparian forest in the Chichibu Mountains. The canopy of this forest is dominated by...
Mosaic Structure of Riparian Forest Vegetation in the Valley Bottom of the Yubiso River,Japan,with Reference to Stand Formation of Threatened Species,Salix hukaoana
conservation disturbance regime floodplain Salix hukaoana topographic unit
2009/8/24
This study examined the environmental conditions that were required to maintain a threatened species, Salix hukaoana. Twenty-five plots were set up in the riparian zone along the Yubiso River, and for...
Current Status and Future of Biotechnology in Forest Tree Breeding Research in Japan
forest tree breeding biotechnology DNA analysis tissue culture transformation
2009/8/21
Biotechnology in forest tree breeding research in Japan is summarized including some important research held in abroad. In DNA analysis it is very important to select adequate kind of marker for each ...
Inventory of non-timber forest product plant and fungal species in the Robson Valley
non-timber forest products Robson Valley inventory biogeoclimatic ecosystem classification
2009/2/5
Increasing interest in non-timber forest products (NTFPs) has led to their greater recognition in sustainable
forest management planning. This is evident in local resource management plans for the Ro...
Seed rain traps for forest lands：Considerations for trap construction and study design
exotic plant species invasionL seed dispersal seed rain trap sample design
2009/1/9
Seed rain studies provide valuable information for forest researchers monitoring exotic species invasions. Plant species move through forests primarily as seeds, and this dispersal is critical to futu...
Spruce Weevil and Western Spruce Budworm Forest Health Stand Establishment Decision Aids
Choristoneura occidentalis forest health harvesting Pissodes strobi productivity silviculture
2009/1/9
Western spruce budworm (Choristoneura occidentalis) is a defoliator of Douglas-fir throughout the tree’s range in British Columbia. Although recent defoliation levels within the Coast Forest Region (c...
