鄂中泡桐生长规律研究  

Research on growth ragularity of Paulownia fortuneat in center of Hubei Province

作　　者：周火明[1] 滕家喜[2] 尹晓蛟[1] 章璐[1] 鲁丛平 柯尊发 李金山 周忠诚[1] 

机构地区：[1]湖北生态工程职业技术学院,湖北武汉430200 [2]华中农业大学,湖北武汉430070 [3]湖北太子山林场管理局,湖北荆门431800 [4]湖北麻城林业局,湖北黄冈438300

出　　处：《吉林林业科技》2016年第3期9-12,29,共5页Journal of Jilin Forestry Science and Technology

摘　　要：在湖北省太子山林场10 a生白花泡桐人工林中设置临时标准样地,并选取标准木进行树干解析和测定,对其生长规律进行研究,结果表明：树高、胸径、材积快速生长期均出现在1-4 a生的幼龄阶段。树高连年生长量与平均生长量在2 a生和4 a生各出现1次高峰,但峰值出现在2 a生,两者生长曲线在2.5 a、3.5 a、4.5 a时出现3次相交;胸径连年生长量与平均生长量2.5 a达到最大值,两者生长曲线在3 a生时出现相交;材积连年生长量4 a生时达到最大值,8 a生后处于缓慢下降状态,平均生长量一直处于上升状态,尚未达到最大值,两者生长曲线亦未相交;树高、胸径、材积连年生长率最大值分别出现在第2 a、2.5 a和4 a;形数随树龄增加而降低,符合林木生长正常规律。The temporary standard sample was set in 10 year Paulowniafortune artificial forest of Taizishan forestry＂ centre of Hubei province. The stem analysis and test was carried by choosing the standard forest. The growth regularity of Paulownia fortune was researched. The result showed that rapid growth period of height, diameter at breast height and volume of wood were all in the young stage of 1 - 4 year. There existed 1 peak in 2 year and 4 year of height current annual increment. But the peak value appeared in 2 year. There was 3 times intersection in 2.5, 3.5, 4.5 year. The maximum of current annual increment and average increment appeared in 2.5 year. Both of growth curve intersected in 3 year. The current annual increment of volume of wood reached maximum in 4 year. It declined slowly after 8 year. The average increment was always in ascent statement and didn＇ t reach maximum. Both growth curve also didn＇ t intersect. The current annual growth percentage maximum of height, diameter at breast height and volume of wood appeared in 2, 2.5 and 4 year. The form factor decreased along with age of a tree which conformed to the forest wood growth normal regularity.

关 键 词：泡桐 生长规律 树干解析 

分 类 号：Q949.777.8[生物学—植物学]