摘要
１９９４年对三明莘口教学林场小湖工区２８年生青钩栲人工林生物量及其分配的研究结果表明：２８年生青钩栲人工林总生物量为２５５．９７５ｔ／ｈｍ２，乔木层总生物量为２４７．４０７ｔ／ｈｍ２，净生长量为８．８３６ｔ／（ｈｍ２·ａ）；乔木层生物量大小顺序为：干（５０．５％）＞枝（２１．０％）＞根（１９．８％）＞皮（４．８％）＞叶（３．９％）；树干生物量垂直分布呈金字塔形，活技和鲜叶主要分布在８．５ｍ以上，根系主要集中在土层３０ｃｍ以上．青钩栲相对较为速生，是值得推广阔叶树种之一．
The gross standing crop in a 28-year-old Castanopsis kawakamii plantation is 255. 975t/hm2,about 96. 7percent of which is composed of overstorey trees. The biomass allocation in tree stratum decreased in the order:stem(50. 5 % ) >branch(21. 0% ) >root system (19. 8% )>bark(4. 8% )>leaf(3. 9 % ). The living branches and leaves are maily distributed along the stem more than 8. 5 meters above the ground,and root systems are mainly concentrated in the soil depth of less than 30 centimeters. The growth analysis showed that Catanopsis kawakamii is a relatively fast-growing species,and has a potential for expanding in subtropical regions as a reforestation hardwood species.
出处
《福建林学院学报》
CSCD
1996年第2期114-118,共5页
Journal of Fujian College of Forestry
基金
福建省教育委员会科学基金
关键词
青钩栲
人工林
生物量分配
Castanopsis kawakamii
plantation
biomass allocation
