摘要
通过对沈阳市建成区城市树木的调查分析发现 ,沈阳市的各土地利用类型中的树木种类和数量分布不均匀 ,其中 ,被调查的256块样地中每公顷树种≤5种的样地有113块 ,占总调查样地的44.14% ;每公顷≤10株的样地共43块 ,占总样地的16.80%。利用树种多度重要性排序及累积贡献率获得了不同土地类型中的主要树种 ,多个生物多样性指数表明 ,公园性质绿地的树种多样性最高 ,企事业单位用地与居住区用地次之 ,街道类用地较低 ,而商业金融用地最低。
The study on present urban trees in Shenyang built-up area indicated that in all kinds of land types the distribution of trees was non-uniform.In the256investigated sample plots there were113(44.14%)with tree species fewer than5(include5)per hm 2 ,and there were43(16.80%)with trees fewer than10(include10)per hm 2 .The main tree species were determined by the ranked-abundance sort and the accumulative contribution of tree species.The diversities indicated that numeric value of diversity in garden kin is the highest,and that of enterprises and institution land use and residential district take second place,and that of street kin land use is lower,and that of commercial financial land use is the lowest.And some advices for tree species development were put forward.
出处
《沈阳农业大学学报》
CAS
CSCD
2004年第2期116-121,共6页
Journal of Shenyang Agricultural University
基金
国家自然科学基金(30270250)
中国科学院引进国外杰出人才项目(KOTCE -03971003)
中国科学院沈阳应用生态研究所创新项目(C12MC -SCXMS013)
关键词
沈阳市
树种结构
多样性指数
丰富度指数
Shenyang City
built-up area
diversity index
species richness index
land type
