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.
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.
出处
《中国农业科技导报》
CAS
CSCD
1999年第4期21-27,共7页
Journal of Agricultural Science and Technology
基金
国家杰出青年科学基金项目(No.39425013)
关键词
根分泌物
生态效应
养分有效性
根际动态
Root exudates
Ecological effect
Nutrient availability
Rhizosphere dynamics
