植物-土壤反馈研究进展.

This paper reviewed the definition, research approaches and methods of plant-soil feedback and its research progress and problems. Plant-soil feedbacks involve two-step processes; plant changes the abiotic and biotic conditions of its associated soil; these changes in soil conditions may increase or decrease the growth of eonspeeifies, resulting in positive or negative plant-soil feedbacks, respectively. Plant-soil feedbacks can affect plant perlormanee and plant-competitive interactions, ultimately affecting community composition and diversity. Role of feedback in the succession process in the plant is uncertain. Growth enhancement of exotic and less negative feedback may result in that local species are competitively excluded, future climate change may cause changes in species composition and biodiversity loss, but resource complementarity and not too strong plant-soil feedbacks elfeets may lead to high productivity and diversity of mixed plant community. The key issues and further tasks of plant-soil feedback study were suggested as follows: (1) Design the experiment of plant-soil feedback in different ecosystems; (2) There were strong need to study reciprocating elfeets of plant and soil; using the molecular or genetic mean in plant-soil feedback; (3) Study on the mechanism of plant-soil feedback as a ecological factor. [ABSTRACT FROM AUTHOR]