中文摘要：

通过野外调查和查阅大量标本及文献资料，对中国滨藜亚科（Atriplicioides）植物地理分布和区系特点进行了分析。中国滨藜亚科植物有28种，隶属7个属，主要分布于我国新疆、甘肃、内蒙古等20个省、自治区的干旱草原、荒漠、盐碱地带，尤以新疆最为丰富，分布有23个种，占全国的82．14％。在垂直分布上，从低于海平面80m的吐鲁番盆地至海拔4000m以上的帕米尔高山地带都有其分布。中国滨藜亚科植物区系的特点：①特有现象明显；②具有典型的温带干旱荒漠分布性质；③与中亚成分关系密切；④区系成分古老与年轻并存。对滨藜亚科植物的特点，以及地理分布的研究，可为干旱区植被重建、植物的引种以及饲用植物的开发提供科学依据。

英文摘要：

The distribution and floristic characteristics of subfamily Atriplicioides （Chenopodiaceae） in China are studied through field survey, and the specimens in herbaria （PE, SHI, HNWP, XJBI, XJA） and CVH system on the internet are examined so as to obtain the interdepartmental information of China. The detailed distribution maps of most species （ including 9 species in 5 genera） are charted using GIS and putting the database into geographic system, then they are added into the maps of China, and the corresponding important information of some species and statistics results is listed in the tables. The distribution data indicate that there are 28 species in 7 genera in China, and these species are mainly distributed in arid steppes, such as the deserts and salina in Xinjiang Uygur Autonomous Region, Gansu Provinces and Inner Mongolia Autonomous Region of China, especially in Xinjiang where 23 species are distributed and account for 82.14% of total species in the subfamily of Atriplicioides （ Che- nopodiaceae） in China. On the perspective of their vertical distribution, the species are distributed from elevation of 80 m b. s. 1. （the Turpan Basin） to 4 000 m a. s. i. （the Tibetan Plateau and the Pamirs）. The floristic geography of Atriplicioides （Chenopodiaceae） in China is analyzed and discussed based on the significant role of the species in climate h/story and geologic evolution. The results are as follows： ① Component in temperate zone： there are 19 species （except Atriplex hortensis L. and Spinacia oleracea L. ） , in which there are 18 species and account for 64.29% of the total in the arid desert regions, Gobi deserts, wasteland, arid steppes, farmland and also roadside in Xinjiang. They are so strong to adapt the severe environment; ② Component in subtropic zone： there are only 3 species （Atriplex repens Roth, Atriplex rnaximowicziana Makino and Atriplex nummularia Lindl. ） in this region, they are mainly distributed in Fujian Province, Guangdong Province and littor