红豆草生存草原类型的探讨及其应用

本文在调查的基础上,用草原类型学的方法,对红豆草的生态特征进行了分析与研究,根据草原的综合顺序分类法,红豆草最适宜分布在①微温微干(栗钙土、淡黑垆土,典型草原)类;②暖湿微于(褐土,半干生阔叶林、暖湿性典型草原)类;③微温微润(暗栗钙土、黑钙土、黑垆土,森林草原、草甸草原)类;④微温微润(黑垆土、淋溶褐土,落叶阔叶林、森林草甸)类;⑤微温湿润(白浆土、黑土、黑钙土,落叶阔叶林、森林、草原)类;⑥暖温湿润(黄棕壤、棕壤,落叶阔叶林、落叶—常绿阔叶林)类六个草原类别上。其中①为最适分布区,②为扩散区。用草原类型的理论,确定红豆草的空间分布特征,不仅是红豆草宜植区划的依据,而且能指导红豆草生产。

A Study on Existing Onobrychi viciaefolia Grassland Types

The characteristics of Onobrychi viciaofolia ecology have been analysed and studied through survey and from the grass- land typological point of view. According to the method of synthetic order classification, the suitable areas for Onob- rychi viciaefolia are as follows: (1) temperate-semiarid class (chesthut, iight heilu soil, typical steppe), (2) warm temperate-semiarid class (brown soil, semiarid wide-leaves deciduous forest, warm temperate steppe), (3) temperate sem- ihumid class(dark chestnut soil, black earth, heilu soil, forest steppe), (4)warm temperate-semihumid class (heilu soil, leaching brown soil, deciduous wide leaves forest, forest meadow), (5) temperate-humid class (white alkali soil, dark soil, black earth, deciduous wide leaves forest, forest steppe) and (6) warm temperate-humid (yellow brown soil, brown soil, deciduous wide leaves forest, deveiduous evergreen wide leaves forest). Among them the first one is the most suitable area and the second is extensive area. The space distribution theory of Onobrychi viciaefolia will not only be the bases regionalization of Onobrychi viciaefolia, but also direct its production.