【摘要】 如何保护生物多样性是当今生命科学中一个急需要解决的热点问题.而物种多样性指数的计算又是定量评价生物多样性现状和为其保护实践活动提供理论依据的重要工具.研究发现,目前使用的大多数物种多样性计算公式,都没有客观反映群落内各种群在个体数量上的绝对差异,忽略了种群大小在维持生物多样性中的贡献,因而并不能完全客观地反映群落生物多样性的现状,不能为生物多样性保护实践提供科学的理论依据.为此提出了新的物种多样性指数计算公式.更多还原

【Abstract】 How to protect biodiversity is a significant challenge in life science. Species diversity index (SDI), as an important tool for assessing biodiversity state quantitatively and providing theoretical basis for its protection, has been used widely. The research here found that the traditional biodiversity index (e.g. Shannon-Wiener index, Simpson index) couldn’t reflect the contribution of population size to maintain biodiversity. A new calculation equation of SDI was proposed.更多还原