摘要
对粤东沿海第一重山植被进行踏查，并对主要造林树种生长情况进行比较分析。结果表明：粤东沿海第一重山常见乔木树种共有44种、灌木（含木质藤本）28种、草本（含草质藤本）20种。对11个主要乔木树种按树高年均生长量、胸径年均生长量和冠幅年均生长量进行聚类，共分为3类：尾叶按（Eucalyptus urophylla）生长最快，树高年均生长量为1．76m，胸径年均生长量为1．99cm，冠幅年均生长量为0．90m；大叶相思（Acacia auriculiformis）、木麻黄（Casuarina equisetiforlia）和木荷（Schimasuperba）生长较快，树高年均生长量分别为1．30，1．15和0．96m，胸径年均生长量分别为0．84，1．31和1．16cm，冠幅年均生长量分别为0．90，0．57和0．64m；杨梅（Myricarubra）、珊瑚树（Viburnum odoratissimum）、台湾相思（Acaciaconfusa）、山杜英（Elaeocarpus sylvestris）、大头茶（Gordonia axillaries）、中华楠（Machilus chinensis）和马尾松（Pinus mazsoniana）生长较慢，其中马尾松树高、胸径和冠幅年均生长量分别为0．36m、0．61cm和0．28m，其它6个树种树高年均生长量为0．42—0．88m，胸径年均生长量为0．58—1．35cm，冠幅年均生长量为0．30-0．96m；以上10个阔叶树种可替代马尾松，作为粤东沿海第一重山造林绿化的优选树种。
The vegetation in the first mountain in coastland of eastern Guangdong province was investigated. The growth of the main tree species was compared and analyzed. The results showed that there were 44 kinds of arbor, 28 kinds of shrub and 20 kinds of herb in the first mountain in coastland of eastern Guangdong province. Based on the average annual growth in height, DBH and crown, the eleven main tree species were clustered, and these species were divided into three categories. Eucalyptus urophylla was the fastest - growing plant and the average annual growth in height, DBH and crown were 1.76 m, 1.99 cm and 0. 90 m respectively. Acacia auriculiformis, Casuarirta equisetifolia and Schima superba grew faster and the average annual growth in height was 1.30, 1.15 and 0. 96 m respectively; the average annual growth in DBH was 0. 84, 1.31and 1.16 cm respectively; the average annual growth in crown was 0. 90, 0. 57, 0. 64 m respectively. Myrica rubra, Viburnum odoratissimum,A. confusa, Elaeocarpus sylvestris, Gordonia axillaris, Machilus chinensis and Pinus massoniana grew relatively slowly. The average annual growth in height, DBH and crown of P. massoniana was 0.36 m, 0. 61cm and 0. 28 m respectively. The average annual growth in height, DBH and crown of other six tree species was 0. 42-0. 88 m, 0.58-1.35 cm, 0. 30--0. 96 m respectively. These ten tree species could replace P. massoniana as the superior tree species which were suitable for the first mountain in coastland of eastern Guangdong province.
出处
《林业与环境科学》
2016年第3期55-60,共6页
Forestry and Environmental Science
基金
广东省林业科技创新项目"中华楠培育技术研究"(2016KJCX013)
国家林业公益性行业科研专项经费项目"粤东沿海前沿困难地带营造防护林关键技术研究"(201104038)
关键词
人工林
树种调查
树种选择
聚类分析
沿海
粤东
plantation
species investigation
species selection
cluster analysis
coastal
eastern Guangdong
