关键词: 杨树, 无性系, P营养效率, 根际酸化作用, 根际有效磷

Abstract: We reviewed literatures related to eco-environmental effects of human activities in the coastal areas of China over the past 30 years (1987-2017) from aspects of characteristics of eco-environmental effects over different stages, characteristics of the study areas, characteristics of the research media, and characteristics of the key pollutants. The results showed that research in this field was not systematic and comprehensive before 2000. Afterwards, the changes of research foci in this field could be assigned into two stages, i.e., rapid growth of various researches during 2001-2007 and focusing on heavy metals and organic toxic pollutants after that. Most of the selected study areas in the literatures located in the coastal regions, estuaries and bays with rapid urbanization and industrialization. The studied pollution media mainly included sediments, organisms, and water. Overall, the depth and extent of the reviewed studies were insufficient, and there was lack of longterm monitoring data. Moreover, geographic identifications and management of different types of key eco-environmental problems were missing in the previous studies. In the future, the characteristics of sources and sinks of key pollutants also need to be further studied. Theoretical and applied researches focusing on policies and technical system constructions need to be strengthened from urban planning perspective.

Key words: Poplar, Clone, Phosphorus efficiency, Rhizosphere acidification, Available phosphorus in rhizo-sphcre