温带荒漠珍稀濒危植物的引种栽培

我国荒漠大部分属温带荒漠,以干旱、风沙、盐碱、粗瘠和植被稀疏为主要特征。植物种类约有1000余种[1],其中不乏特有种和稀有植物种。与其它地区植物种类一样,随着自然生境的逆转和人类活动范围扩大,不少种濒临灭绝状态。改善自然生态环境,减少人为破坏,就地保护植物种质资源的流失,需通过建立自然保护区加以实现,而迁地保护濒危植物并开展必要的研究、种质保存和繁殖工作,协助自然界保存濒危稀有植物,并为栽培的濒危植物再转入自然生境提供科学依据、繁殖技术和苗木,则是植物园在植物多样性保护工作中的重要任务。

The Adventitious Culture of Rare Endangered Plants in Temperate Desert

16 temperate desert species have been placed on the "Chinese Rare Endangered Plants". 10 Species of plants and 14 species of protected desert rare plants were introduced to Turpan Desert Botanical Garden. Seed is the main adventitious material and then the cutting and wild nursery stock. Now 83.3% of seeds are beginning to blossom and bear seeds normally, and 62.5% have propsgated the second generation nursery stock. It laid a foundation for thorough study on endangered plants and their returning to natural haditat. Most desert rare endangered plants have no difficulty of sexual propagation. Therefore, propagation dy seed is still the main way to largely cultivite the desert rare endangered plants.