外来植物入侵对全球和区域生物多样性、环境和经济都构成了巨大威胁，这些成功入侵的水生植物中多数为克隆植物，而克隆性状对外来水生植物入侵性的贡献及其适应性机制尚不清楚。本研究以国内三种主要的恶性入侵水生植物及其近缘（或共存）的乡土植物和外来非入侵植物种对为研究对象，以个体、种群和群落生态学理论为基础，以研究入侵水生植物及其近缘（或共存）的乡土植物和外来非入侵植物之间、入侵种原产地种群和入侵地种群之间的克隆劳动分工能力及其作用差异为切入点，综合运用比较生态学、野外生态学、实验生态学和生理生态学等研究技术和手段，研究同质和异质性资源分布条件下、局部干扰和植被竞争环境下克隆劳动分工对外来水生植物入侵的生理、生态意义及其适应性机理，以期更深入地揭示外来水生植物入侵的生理生态机制。本研究对丰富和发展克隆植物生态学、入侵生态学和进化生态学理论具有重要意义，并可为水生植物入侵种的防治提供有力的理论依据。

Plant invasion has posed a great threat to the biodiversity, environment and economy both globally and locally. Many of these successful invaders are clonal plants, however, little is known about the roles and adaptive mechanism of clonal traits on their invasiveness. Based on the transdisciplinary theories and methodologies of individual, population and community ecology, with species pairs of several aquatic invasive plants and their relative (or co-occurring) native and exotic non-invasive species in China as research objects, we investigate the different effects of clonal division of labour (a key clonal trait of clonal plants) among the invasive aquatic plants and their relative native (or co-occurring) and exotic non-invasive species, and between the original and invasive populations of invasive aquatic plants, under homogeneous and heterogeneous resource availability, and under local disturbances and competitive environment by native aquatic plant communities, via the techniques and methods of comparative, field, experimental and physiological ecology. The purpose of this proposal is to explore eco-physiological and adaptive mechanisms of clonal division of labour in aquatic clonal plants, the implications and mechanisms of clonal traits on the invasiveness of alien aquatic plants, and therefore to reveal some invasive mechanisms of alien aquatic plants more deeply. This research will provide important implications for the development of theories in clonal plant, invasive and evolutional ecology. Furthermore, this research will provide powerful theoretical basis for the prevention and control of alien invasive aquatic plants.