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Ảnh hưởng của cây còn lại đối với chiều cao của cây Cryptomeria japonica 18 và 19 tuổi trồng trong các khoảng chọn nhóm Dịch bởi AI
Informa UK Limited - Tập 11 - Trang 227-234 - 2006
Nghiên cứu này đã xem xét các ảnh hưởng của cây còn lại đến chiều cao của cây Cryptomeria japonica 18 và 19 tuổi được trồng trong các khoảng chọn nhóm khoảng 0,1 ha tại Yufuin, tỉnh Oita, miền nam Nhật Bản. Chúng tôi đã phát triển một mô hình tổng quát thể hiện sự biến đổi chiều cao của tất cả các cây trồng trong các khoảng từ các chỉ số cạnh tranh giữa các thế hệ (ảnh hưởng của cây còn lại) và cạ...... hiện toàn bộ
#Cryptomeria japonica #cây còn lại #cạnh tranh giữa các thế hệ #cạnh tranh trong cùng một thế hệ #chiều cao cây trồng #khoảng chọn nhóm
Estimating the annual supply potential and availability of timber and logging residue using forest management records of the Tochigi prefecture, Japan
Informa UK Limited - Tập 19 - Trang 22-33 - 2013
We used forest management records to estimate the annual supply potential and availability of timber and logging residue from profitable subcompartments for all the cities and towns in the Tochigi prefecture. Five log markets and three factories in the Tochigi prefecture were assumed to be the destination of timber and logging residue, and the forest operation systems were set on the basis of inte...... hiện toàn bộ
Dynamics of coast redwood sprout clump development in variable light environments
Informa UK Limited - Tập 15 - Trang 131-139 - 2009
Post-thinning stump sprout response was assessed in a coast redwood [Sequoia sempervirens (D. Don) Endl.] stand from 5 to 9 years after five treatments were initiated. Nine years after treatment, leaf area index (LAI) ranged from 5.9 to 14.1 and the percent above canopy light (PACL) ranged from 0.8 to 3.9. Sprout responses included rapid self-thinning in all treatments with complete sprout mortali...... hiện toàn bộ
Oviposition and larval performance of Monochamus alternatus (Coleoptera: Cerambycidae) on the Japanese cedar Cryptomeria japonica
Informa UK Limited - Tập 11 - Trang 35-40 - 2006
To determine whether Monochamus alternatus can use the Japanese cedar (Cryptomeria japonica) as a host tree, experiments were conducted in a laboratory using three insect populations of different localities. Adult females chose Pinus densiflora bolts as oviposition substrate when supplied with cedar and pine bolts simultaneously, whereas some females from one locality oviposited on cedar bolts whe...... hiện toàn bộ
Estimation of aboveground biomass in mangrove forests using high-resolution satellite data
Informa UK Limited - Tập 19 - Trang 34-41 - 2013
Mangroves play important roles in providing a range of ecosystem services, mitigation of strong waves, protection of coastlines against erosion, maintenance of water quality, and carbon sink in the context of global warming. For trees in mangrove forests in southern Ranong Province, Thailand, we investigated the allometric relationship between crown area derived from high-resolution satellite data...... hiện toàn bộ
Heterogeneity of individual roots within the fine root architecture: causal links between physiological and ecosystem functions
Informa UK Limited - Tập 12 - Trang 126-133 - 2007
This review covers the heterogeneity in functions within the fine root architecture in order to clarify the multiple functions of fine roots. Many fine root characteristics, such as anatomy, physiology, morphology, and their consequences for the ecosystem, differ among root ages and ontogenetic branching hierarchies. Individual root age can be characterized by tissue development, with the main tis...... hiện toàn bộ
Spatial distribution of soil carbon and nitrogen storage and forest productivity in a watershed planted to Japanese cedar (Cryptomeria japonica D. Don)
Informa UK Limited - Tập 11 - Trang 351-358 - 2006
Digital terrain modeling was used to evaluate landscape-level spatial variation of soil C and N storage and site productivity in Japanese cedar (Cryptomeria japonica D. Don) stands. Soil C and N storage were measured in samples from surface soils (0–25 cm depth) of 29 Japanese cedar stands in the 205-ha Myougodani watershed, Toyama Prefecture. The site index (C. japonica tree height at age 40 year...... hiện toàn bộ
Diversity, resource utilization, and phenology of fruiting bodies of litter-decomposing macrofungi in subtropical, temperate, and subalpine forests
Informa UK Limited - Tập 20 - Trang 60-68 - 2014
The diversity, vegetative and reproductive characteristics, and phenology of litter decomposing macrofungi (LDM) were compared between humus forms and climatic regions. Fruiting bodies of LDM were examined for the forest floor of subtropical (ST), cool temperate (CT), and subalpine (SA) forests in Japan. Field surveys during one growing season yielded 35, 32, and 18 species in ST, CT, and SA, resp...... hiện toàn bộ
Operators' mental strain in operating the high proficient forestry machine
Informa UK Limited - Tập 1 - Trang 195-197 - 1996
This study was designed to assess the mental aspect of the work load in operators of high proficient forestry machines. Workers engaged in the operation of harvesters, processors, tower-yarders, forwarders and an excavator were included in this study. Mental fatigue and stress generated by operating these five types of forestry machine were assessed. The stress intensity as a measure of mental str...... hiện toàn bộ
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