中文摘要：

种-面积关系主要探讨物种数量随面积扩大而变化的规律，它联系不同尺度的生物多样性，是生物多样性尺度转换的重要依据。利用种-面积关系可以估算群落或区域的物种数量、评价区域生物多样性的丧失。由于构建方式、尺度效应以及区域差异，种-面积关系的具体形式及其普适性还存在争议。本文主要从构建、尺度效应、区域分异以及与种-多度分布的联系等方面综述种-面积关系的主要进展，并探讨它在不同方面的适用性。最后给出了利用基于组合样方系列构建的种-面积关系来估算秦岭山地物种数的实例，结果表明估算精度良好。

英文摘要：

The manner in which species richness increases with increasing sampling area is among the important laws of ecology. However, forms and parameters of the species-area relationships vary depending on sampling methods, climate, and spatial scales. Because the species-area relationships connect biodiversity at different scales, they are used for estimating species richness at local or regional scales, and for assessing regional biodiversity losses. Here, we review recent developments in the forms, spatial variation in parameters, applications, and scale-dependence of species-area relationships. As a case study, we used species-area relationships to estimate number of plant species in different regions of the Qinling Mountains, and found that the well-consistent estimated and recorded numbers of species were achieved for different nature reserves in the Qinling Mountains.