岩溶山区石漠化生境灌木层植物功能群划分

植物功能群是研究复杂生态系统结构和功能的有效途径。植物功能群组成的变化情况是生态系统功能的重要表现形式，同时也是生态系统对环境因子变化响应的主要指标之一。因此，研究不同石漠化程度下，植物功能群组成的变化，对于揭示岩溶山区生态系统植被自我更新规律具有重要意义。以岩溶山区石漠化生境灌木层为研究对象，利用地理环境特征与植物适应功能关系来划分植物功能群，将岩溶地区石漠化生态系统灌木层划分为7 个植物功能群。有助于了解岩溶石漠化生态系统功能群结构及功能，同时对石漠化生态系统的恢复与重建提供理论基础。

The Classification of Plant Functional Types Based on Shrub Species in the Habitat of Rocky Desertification in Karst Mountain Region

The composition change of plant functional groups is widely considered as an effective approach to study the structure and functions of complicated ecosystems. It is also one of the main indicators with which cosystems respond to environmental changes. Therefore, studying changes of plant functional groups in karst mountainous ecosystems can help scientists to understand vegetation recovery process and laws. By studying the functional groups in different degree of rocky desertification ecosystems, the authors classified the shrub layer in karst ecosystems into seven functional groups based on geographical environment characteristics and the functional relations of different plants. The study helps understanding the structure and function of plant functional groups in karst ecosystems, and provides empirical data for the restoration of the ecosystem.