Abstract:

The ecological effect of root exudates was discussed in the present paper. The main contents aboutecological effect of root exudates were as follows: ① the impact of root exudates on rhizosphere microorgan-isms, ② the role of root exudates in plant nutrition ecology, especially influence of root exudates on nutrientavailability of plants, ③ the influence of mucilage released by roots on soil structure, ④ heavy metal bindingwith root exudates and ⑤ the role of root exudates in allelopathy

Key words: Root exudates, Ecological effect, Nutrient availability, Rhizosphere dynamics

摘要：

本文综述了根分泌物的生态作用,其中主要包括根分泌物对根际微生物的影响、在植物营养生态中的作用、特别是对土壤养分有效性的直接和间接影响;根分泌的粘胶物质对土壤结构的影响;根分泌物与重金属钝化间的关系、化感作用等几方面内容.

关键词: 根分泌物, 生态效应, 养分有效性, 根际动态