搜索结果: 1-6 共查到“林学 Abies sachalinensis”相关记录6条 . 查询时间(0.062 秒)
Growth of Abies sachalinensis Along an Urban Gradient Affected by Environmental Pollution in Sapporo, Japan
air pollution climate change implications oxides urbanity tree growth
2024/3/4
Urban tree growth is often affected by reduced water availability, higher temperatures, small and compacted planting pits, as well as high nutrient and pollution inputs. Despite these hindering growth...
Effect of Thinning on the Natural Regeneration of Broad-leaved Trees in Abies sachalinensis Plantations
Abies sachalinensis plantation broad-leaved tree light condition natural regeneration thinning
2009/8/27
To examine the conversion of conifer plantations to mixed forests comprising coniferous and broad-leaved trees, we investigated responses of understory vegetation to variable-intensity thinning in 39-...
Changes in Biomass of Understory with Silvicultural Operations in Abies sachalinensis
Abies sachalinensis biomass relative light intensity silvicultural operation understory
2009/8/25
The understory biomass (height<3 m; tree, vine and herbaceous species) in 21 plantation stands of Abies sachalinensis was investigated to understand how that biomass changes with forest age and with e...
Relationships between the Distribution and Site Conditions of Abies sachalinensis Seedlings, Saplings and Juveniles in Selection Cutting Stands of Natural Forests in Central Hokkaido,Japan
Abies sachalinensis, distribution characteristics, natural regeneration, selection cutting stand, site conditions
2009/8/24
We examined how site conditions in selection cutting stands of natural forests relate to the regenerate distribution of Abies sachalinensis, which is a main species of mixed conifer-broadleaved forest...
Genetic Variation and Genotype-environment Interaction in Annual Ring Structure in Progeny Test of Plus Trees of Sakhalin Fir (Abies sachalinensis)
annual ring structure genotype-environment interaction heritability x-ray densitometry
2009/8/24
For improving the wood properties of Sakhalin fir (Abies sachalinensis) variation in annual ring structure and genetic variation in different environments were examined by X-ray densitometry. The spec...
Invasion and Growth Processes of Natural Broadleaved Trees and Influences of Thinning on the Processes in an Abies sachalinensis Plantation
Abies sachalinensis plantation broadleaved tree growth regeneration thinning
2009/8/24
To determine the invasion and growth processes of natural broadleaved trees in a conifer plantation, and to examine the influence of forest operations on these processes, we investigated the species c...