摘要
在中国，低地草甸的分布严格限于温带气候带范围内，并集中发育在东北平原上，往西逐渐减少。山地草甸、亚高山草甸和高寒草甸在各自然地带的分布是有规律性的。各类草甸有不同的形成途径和水分状况及其决定因素。但无论在平原、高原或山地，草甸都表现出对地带性气候的依赖性。其中，低地草甸的分布、形成和水分状况还取决于经向地带性的大气降水以及地下水、地表迳流、土壤盐分含量和低洼地形等条件，而山地草甸、亚高山草甸和高寒草甸的分布、形成和水分状况则取决于该山地所在的地理位置、海拔高度和空气湿度。
n China, the distribution of the lowland meadow strictly limits in the range of temperate climate zone, and mainly develops in the northeast plain, and toward west gradually decreases. The distributions of mountain meadow, sub-alpine meadow and alpine meadow in every natural zone are regular. Various meadows own different forming pathway, water condition and their decisive factors, which is dependent on zonal climate; and lowland meadow is also dependent on atmospheric precipitation and underground water, surface runoff, soil salt content and its topography. They are all dependent on geographical place of the mountain locating, altitude and air humidity.
出处
《草业科学》
CAS
CSCD
北大核心
1997年第6期1-5,共5页
Pratacultural Science
关键词
草甸
分布
形成途径
水分状况
地带性气候
Meadow, distribution, forming pathway, water condition, zonal climate
