按照最小存活种群的标准，该园有73种稀有濒危植物迁地保护有效。
According to standard of minimum viable population, the ex-situ conservation of 73 rare and endangered plants are effective.
中国的熊猫专家认为大熊猫在人工饲养的300是最小存活种群的物种繁殖和维持100年的到来。
China's panda experts believe the 300 pandas in captivity are the minimum viable population for the species to reproduce and sustain in 100 years to come.
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