【摘要】 奇台县荒漠类草地自然保护区位于准噶尔盆地东南缘，奇台县境内中部平原区，东经89°53．3’－90°7．5’，北纬44°12．6’－44°25．7’，总面积384．19km2。据调查，共有种子植物27科、94属、139种。占全疆种子植物总科数的22．11％，总底数的14．01％，总种数的4．30％。植物的区系特点如下：1、与世界及我国其它荒漠相比，植物种类较丰富，而且大部分植物科、属的系数较大。2、本区系的温带成分属占优势；同时，地中海、西亚至中亚分布也是本区系重要组成部分。3、种的地理成分以干旱的中亚分布为骨干，兼有地中海、西亚至中亚分布等。4、藜科植物在保护区有特殊地位、5、本区系具有明显的古老性，同时也有属的发展。6、珍稀植物资源较丰富。因此，本保护区具有重要的保护价值。更多还原

【Abstract】 Qitai County Desert-type Grassland Nature Reserve is situated at the south-east edge of Zhungger Basin. It belongs to the central plain of Qitai county area,between 44°12. 6’ north latitude and 44°25. 7’ north latitude,and 89°53- 5’t east longitude and 9O°75’ eastlongitude, The Reserve is about 384. 19 square kilometers. There are 139 species of seedplants, which belong to 27 families and 94 genera,and respectively has a percentage of 22. 1 %of total families, 14. 01 % of total genera,and 4. 30% of total species of Xinjiang. The floristiccharacteristics in the Nature Reserve are as follows: (1 ) Comparing with those in otherdeserts,species are richer, and coefficients of most families and genera are large. (2) Thetemperate-zone elements is superior in numbers of genera,and the Mediterranean,westernAsia to Mid- Asia distribution occupies an important place,too. (3) The draugth Mid-Asiadistrbution is the mainstay among the geographical elements of various species. (4 )Chenopodiaceae has special position. (5) The flora is ancient,though having the developmentof genera. (6) Resources of the rare plants are rich. So the Reserve is well worth protecting.更多还原