搜索结果: 1-7 共查到“农学 Chamaecyparis obtusa”相关记录7条 . 查询时间(0.046 秒)
Comparison of Changes in Organic Matter Dynamics due to Stand Age between Artificial Japanese Cedar (Cryptomeria japonica D. Don) Forests and Japanese Cypress (Chamaecyparis obtusa Sieb. et Zucc.) Forests
artificial Japanese cedar forest artificial Japanese cypress forest carbon mineralization rates of the litter organic matter dynamics stand age
2009/8/28
The purpose of this study was to clarify the effects of tree species on organic matter dynamics according to stand age in Kanto region of Japan. We investigated forest floor cover percentages, amounts...
Dynamics of Undergrowth and Its Application to Vegetation Control of Planted Chamaecyparis obtusa Endl.Forests with Special Reference to Mitigation of Surface Soil Loss
Chamaecyparis obtusa plantation dynamics of undergrowth soil erosion control stand density control vegetation control
2009/8/28
Viewed from the erosion control in Hinoki cypress plantations, the dynamics of undergrowth was studied in order to apply the stand density control to vegetation control. Seventeen study plots were set...
Prediction of Existence Probability of Abies firma Seedlings in Cypress (Chamaecyparis obtusa) Plantations in Kirishima
Abies-Tsuga natural forest cypress plantation forest logistic regression analysis seed source seedlings
2009/8/27
To select suitable sites for restoring plantations to natural Abies firma and Tsuga sieboldii forests in the Kirishima mountain region, the likelihood of the existence of Abies seedlings was predicted...
Defoliating Damage by Typhoons in Hinoki (Chamaecyparis obtusa) Plantations
defoliating damage Hinoki stand leaf area leaf biomass typhoon damage
2009/8/27
We measured leaf loss caused by typhoons in four Hinoki (Chamaecyparis obtusa) plantations in northern Kagoshima Prefecture. In 2004, five typhoons passed through Kagoshima Prefecture and over nearby ...
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...
The Effects of Thinning on the Spatial Distribution of Trees in an Old Chamaecyparis obtusa Plantation Quantitative Analysis Using the L-Function
long rotation old-aged stand spatial statistics tree spacing
2009/8/24
We investigated changes in the spatial distribution of trees in a 90-year-old Chamaecyparis obtusa plantation owned by Hieizan Enryakuji Temple using the L-function. The plantation is an example of lo...
Influence of Thinning History on the Stand Structure of Old-aged Plantations of Chamaecyparis obtusa
Chamaecyparis obtusa old-aged plantation thinning history stand description tree quality structure
2009/8/21
Past management, stand structure and tree quality composition were investigated in six stands of about 100-year-old Chamaecyparis obtusa plantations, to understand the effects of their respective thin...