青海省蚕豆品种资源的地理分布研究

STUDIES ON GEOGRAPHICAL DISTRIBUTION OF FABA BEANS GERMPLASM IN QINGHAI

青海蚕豆的种植主要集中在海拔1700—2800m间的黄河、湟水、隆务河河谷及两岸的丘陵地带。依蚕豆的自然生态适应地区可划分为东部蚕豆主要生态区、海南半干旱蚕豆生态区、柴达木盆地干旱蚕豆生态区和海北及青南蚕豆次生态区。东部蚕豆主要生态区因海拔的垂直分布、气候特点,又可分为三个生态副区,即温暖川水蚕豆生态副区、干旱浅山蚕豆生态副区和高寒脑山蚕豆生态副区。

Cultivation of Qinghai tick bean was mainly in Huanghe River,Huang water, Valley of Longwu River,and hilly land of both river of elevation 1 700-2 800 metre. According to natural ecological region of tick bean, it was divided into ecological ragion of East tich bean,e-cological region of Hainan semiarid tick bea,ecological region of Chaidamu Basin arid tick bean, secondary ecological region of Haibei and Qingnan tick bean. Ecological region of East tick bean was again divided into three ecological subregion because of vertical distribution of elevation and characteristics of climate. As was ecological subregion of warm temperature tick bean,ecological subregion of arid Qian hill tick bean,ecological subregion high-cold Nao hill tick bean.