摘要
大穗结缕草为盐生植物 ,主要生长在沿海潮沟两侧的滨海盐土地带上 ,其区系组成绝大多数种类属于盐生植物 ,为海滩原生植物群落。中华结缕草为耐盐的优良草坪植物 ,其野生群落主要分布在沿海 2～ 40m的滨海阶地上。其生态幅较宽 ,土壤 pH在 7.2～ 9.2之间。中华结缕草群落为单优群落 ,盖度多在 60 %～ 90 %。中华结缕草种内存在十分丰富的变异 ,采用模糊聚类的方法将 1 7份草样划分为 6类 ,各类间差异很大。主分量分析表明有性繁殖器官如果穗高度和营养器官特征如叶长和匍匐茎扩展速度是研究中华结缕草种内分异的重要指标。这 2种植物可作为沿海城市建植草坪的优良植物。
Zoysia macrostachya is a kind of salt-living plant. It mainly grows on salt soil along sea bank. Most species in its section system are salt living. Its communities belong to original beach community. Zoysia sinca and Zoysia macrostachya are suitable lawn grasses for cities along seas. Zoysia sinica is a kind of lawn grass with salt tolerance character. Its communities mainly distribute at 2～40 meters height along seas. Its ecological breadth is wide. The pH values of soil where it grows are between 7.2～7.9. Zoysia sinica communities are single dominant and its cover degrees are between 60～90 percent. There is abundance variation in Zoysia sinica. 17 samples are divided into 6 types by Fuzzy method and the differentiation among the types are great. PCA analysis shows that sexing reproduce organ such as the height of spike, and nourishment organs such as the length of leaf and the increasing speed of stolen are important indexes for studying the variations under the genus of Zoysia sinica.
出处
《植物研究》
CAS
CSCD
北大核心
2001年第2期278-284,共7页
Bulletin of Botanical Research
