草甸植物群落的发生学基础

A base of formation on meadow vegetation

各类草甸有不同的形成途径和水分状况及其决定因素 ,但都表现出对地带性气候的依赖性。不论是低地草甸、山地草甸 ,还是高寒草甸 ,其植物群落发生的基本因素是充足的水分条件。草甸植物群落所具有的明显的低地、山地、亚高山、高山等地形和所反映的各种类型草甸土的湿润土壤 ,正是其群落发生的立地条件 ,并且是个重要因素。多年生中生草本植物的聚集是草甸群落发生的内在因素 ,同时在草甸的发生与发展及生态关系中居核心地位。因此 ,水分条件、地形土壤条件。

Various meadows own different forming pathway, water condition and their decisive factors which are dependent on zonal climate. Whether it is low ground, mountainous or alpine meadow, the basic factor of their vegetation formation is water condition. The meadow vegetation possessing obvious low ground, mountainous, sub alpine and alpine topography conditions and humid soil condition reflecting various type meadow soil are forming conditions of the meadow vegetation, an important factor as well. The gathering of perennial herbs is an internal factor forming the meadow vegetation and a key position in meadow formation, development and ecological correlation. Therefore, water condition, topography and soil condition and perennial meadow herbs are the occurrence base of meadow vegetation.