搜索结果: 1-15 共查到“农学 stand structure”相关记录16条 . 查询时间(0.069 秒)
Effects of Stand Structure and Topography on Forest Vegetation Carbon Density in Jiangxi Province
stand characteristics terrain factor driving force regression analysis
2023/12/11
Stand structure and topography are important factors affecting forest vegetation carbon density (FVCD). Revealing the interaction mechanisms between stand structure and topography on FVCD is of great ...
Assessing Tree Coverage and the Direct and Mediation Effect of Tree Diversity on Carbon Storage through Stand Structure in Homegardens of Southwestern Bangladesh
traditional homegardens agroforestry system biodiversity and carbon optical remote sensing
2023/12/8
Dealing with two major challenges, climate change mitigation and biodiversity loss, under the same management program, is more noteworthy than addressing these two separately. Homegardens, a sustainab...
Importance of stand structure and neighborhood in European beech regeneration
Fagus sylvatica Seedlings Saplings Closed canopy Ontogeny Competition Understory
2024/3/8
The European beech (Fagus sylvatica L.) is a competitive and shade-tolerant species, with its natural regeneration in closed-canopy stands affected by a number of variables. The study aimed to identif...
The effect of different tending on stand structure and quantitative production of European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia
quantitative production free crown thinning
2015/5/18
The paper deals with assessment of a long-term experiment (45 and/or 53 years of investigation) in the
90-years-old European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia. T...
Stand structure indices as tools to support forest management: an application in Trentino forests (Italy)
stand complexity species diversity diametric differentiation index mingling index contagion index composite stand index
2015/4/24
Stand structure and species diversity are two useful parameters to provide a synthetic measure of forest biodiversity. The stand structure is spatial distribution, mutual position, diameter and height...
Long-term silvicultural experiment with transformation of the mixed stand structure
production regeneration species composition stand transformation
2015/3/27
The paper summarizes the main characteristics of a mixed stand during 80-year transformation to the mixed stand with permanent selective structure. The initial main stand was mostly composed of conife...
The effect of different tending on stand structure and quantitative production of European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia
quantitative production free crown thinning
2015/5/6
The paper deals with assessment of a long-term experiment (45 and/or 53 years of investigation) in the 90-years-old European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia. The...
Changes in tree species composition, stand structure, qualitative and quantitative production of mixed spruce, fir and beech stand on Stará Píla research plot
thinnings stand structure crop trees
2015/3/3
The paper is a contribution to the research on problems of thinnings in mixed (spruce-fir-beech) stands
situated in the 5th forest altitudinal zone (beech with fir) in the central part of...
Influence of forest stand structure on the occurrence of bird community in Skalná Alpa National Nature Reserve in the Veľká Fatra Mts. (West Carpathians)
primeval forest texture diameter structure dead wood bird community
2015/2/2
The study deals with the influence of the structure, texture and dynamics of a spruce-beech primeval forest on the bird community in Skalná Alpa National Nature Reserve in the Veľká Fatra Mts. (W...
Relationship between Stand Structure of a Secondary Forest on the Keihanna Hills and Soil Hardness
cluster analysis Osaka group Pinus densiflora Quercus serrata soil hardness
2009/8/27
The stand structure of a secondary forest established on the Osaka group and related factors were analyzed. Twenty-seven quadrats were set in the forest, and every tree in those quadrats was measured....
The Relationship between Slope Position and Stand Structure of an Old Chamaecyparis obtusa Plantation in Northern Kyoto Prefecture,Japan
L-function old-aged forest plantation slope thinning
2009/8/24
We analyzed the size and spatial distribution of trees in relation to slope position in a 90-year-old Chamaecyparis obtusa plantation, which has never been thinned. The study plot was on a steep slope...
Relationship between Stand Structure and Damage Rate in Japanese Larch Forests Damaged by Glaze
diameter distribution discriminant analysis glaze damage slenderness ratio stand density control diagram
2009/8/24
Data on the Japanese larch (Larix kaempferi Carr) forest damaged by glaze in Hidaka Hokkaido in February 2004 was analyzed to work toward developing a system that minimizes glaze damage. The distribut...
Influence of a Fagus crenata Plantation with Different Weeding Periods on the Consequent Stand Structure in Cold Region with Snowiall
colonized broadleaved species Fagus crenata plantation weeding
2009/8/24
In cold regions with snowfall in Japan, unsuccessful Cryptomeria japonica plantations are often intended to convert into more natural forest in recent years. To improve such a practice, we examined ef...
Dynamics of Multi-stem Clump Structure of Canopy Trees Affects the Change in Stand Structure of Secondary Lucidophyllous Forests
multi-stem clump structure stratification stand structure succession light environment
2009/8/24
We investigated stand and multi-stem clump structure of nine stands of secondary lucidophyllous (warm-temperate natural evergreen) forests with different ages to clarify the effects of the dynamics of...
Changes in Stand Structure after the Mass Mortality of Oak Trees in Keihoku Area,Kyoto City,Japan
broad-leaved secondary forest mass mortality of oak trees Qurcus crispula regeneration succession
2009/8/21
The effect of mass mortality of oak trees, caused by the fungus Raffaelea quercivora, on the stand structure of a broadleaved secondary forest was investigated in a stand located in northern Kyoto Cit...