搜索结果: 1-6 共查到“森林培育学 Cryptomeria japonica”相关记录6条 . 查询时间(0.062 秒)
Reliability of Light-trapping Data to Represent the Annual Changing in the Number of Adult Emergences of Cypress Bark Moth Epinotia granitalis Butler (Lepidoptera: Totricidae) in Two Stands of Japanese Cedar Cryptomeria japonica (Taxodiaceae)
Epinotia granitalis feeding scar light trap number of emerged adult
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2009/8/28
The cypress bark moth, Epinotia granitalis (Butler), is a serious insect pest of the Japanese cedar, Cryptomeria japonica. Light traps have been used for monitoring the number of moths in forests. How...
Characteristics and Effectiveness of Glasshouse Miniature Seed Orchards in Cryptomeria japonica D. Don
Cryptomeria japonica D.Don glasshouse miniature seed orchard pollen contamination
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2009/8/28
We produced seeds of Cryptomeria japonica trees in a glasshouse miniature seed orchard to prevent pollen contamination. In the glasshouse, male flowers shed pollen from February 4 to March 27, 2002, w...
Structure and Growth in an Old-growth Sugi (Cryptomeria japonica) Forest in Akita Prefecture,Northeastern Japan
old-aged forest old-growth sugi forest periodic annual net increment stand structure thinning operation
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2009/8/27
Periodic annual net increment of stand volume and stand structure dynamics were analyzed by using data collected in long-term monitoring during a 77-year period in a sugi (Cryptomeria japonica) natura...
Age-related Changes in Stand Volume Growth of Cryptomeria japonica Plantations in Akita District,Northeastern Japan
mean annual net increment mean annual gross increment old-aged plantation of Cryptomeria japonica site productivity stand form factor
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2009/8/24
We analyzed long-term monitoring data on old-aged plantations of sugi (Cryptomeria japonica) in Akita District to examine age-related changes in stand volume growth. Mean annual net volume increment i...
Factors Affecting the Success of Cryptomeria japonica Plantations and Regeneration of Hardwoods in Plantations in a Snowy Region of Northern Japan
dwarf bamboo mixed-forest snow depth unsuccessful plantations zoning
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2009/8/21
We evaluated the relationships of some environmental factors to the success of Cryptomeria japonica afforestation and the degree of regeneration of hardwoods in C. japonica plantations in three waters...
Construction of Crown and Definite Diameter Height Control Diagram of Young Cryptomeria japonica Stand
clear length crown control Cryptomeria japonica definite diameter height stand density
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2009/8/21
A control diagram of crown and stem form was attempted to construct based on the analysis of relationships among several stand characteristics. The data was collected from 32 young even-aged stands of...