摘要
采用收获法 ,测定了武汉天河机场狗尾草群落 (Setaria viridiscommunity)的现存量 .样方1号、2号和 3号的地上现存量 (干重 )分别为 3 2 9.1 g/m2、2 62 .6g/m2和 2 2 7.3 g/m2 ,地下现存量(干重 )分别为 1 4.9g/m2 、3 0 .8g/m2 和 3 2 .6g/m2 .各样方现存量和物种丰富度指数计算的结果表明 :狗尾草群落的生长期较短 ,但生长迅速 .夏季生长旺盛 ,株高可达 1 0 0 cm以上 .不同地段、不同季节群落伴生种有较大变化 ,且群落土壤不同层的属性指标虽有不同 。
This paper employes, harvest method to determine the biomass of the Setaria viridis community in the Wuhan Tianhe Airport. The aboveground biomass (fresh weight) of plot 1, plot 2 and plot 3 is 329.1 g/m 2, 262.6 g/m 2 and 227.3 g/m 2, respectively, and the belowground biomass is 14.9 g/m 2, 30.8 g/m 2 and 32.6 g/m 2. The standing biomass and the computation of the species richness index indicate that the growth period of the Setaria viridis community is relatively short but they grow rapidly, and the height can reach up to 100 cm. Associated species of the community in different region and season is variable, and though the characteristic indices of soil layers of the community is changed, they are all suitable for the growth of the Sataria viridis .
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第4期456-458,463,共4页
Journal of Central China Normal University：Natural Sciences
基金
中南民航局资助项目
华中师范大学大学生科学研究项目
