青海荒漠草地主要藜科牧草的生态地理特征及其饲用价值

ECOLOGICAL GEOGRAPHICAL CHARACTERISTICS AND FODDER VALUE OF THE MAJOR CHENOPODIACEAE HERBAGES IN DESERT GRASSLAND OF QINGHAL

青海黎科植物约１７属５０种，它们的产地及生态地理分布各市相同，反映了青海藜科植物区系的丰富性。在荒漠草地中占据重要位置的藜科植物有１１属４０种，其中有的起建群作用，有的为优势种或主要伴生种。这些牧草具有较高的饲用价值，是该区放牧家畜的主要饲草来源。

There are about 50 species,17 genus in Chenopodiaceae in Qinghai.Their geographical distributionshave nothing in common with each other.In the desert grassland,the major forage grasses have40 species,11 genus。 Part of them play an constructive role, and most of them are dominant species,subdominants orauxiliary species.They own higher fodder value,and are major sources of fodders for animais in the desertgrassland。