应用生态学报2001，Vol.12Issue(2)：253-256,4.
不同土壤水分条件下CO2浓度对禾谷
缢管蚜种群的影响
Effect of elevated atmospheric CO2 concentration on Rhopalsiphum padi population under different soil water levels.
摘要
Abstract
With the aim of forecasting the wheat-aphid relationships under different precipitation in the future atmospheric CO2
environment, the effects of different atmospheric CO2 concentration on Rhopalsiphum padi population under different soil water levels in Open-Top chambers were studied. The results showed that Rhopalsiphum padi population grew constantly with the continuous rising of atmospheric CO2 and it grew more quickly when CO2 concentration increased from 350μ1· L- 1 to 550μ1· L- 2. In each CO2 concentration treatment, R. padi population were diatinct under different
soil water level, and they were the highest under 60 % of field water capacity treatment. When CO2 concentration increased from 350μ1· L- 1 to 550μ1· L- 1, the increase of R. padi population under 60 % of field water capacity treatment was higher than that under 40 % and 80 % treatment. When CO2 concentration increased from 550μ1· L- 1 to 700μli·L- 1, the increases of R. padi population under 60 % and 40 % soil water treatments were the same and both higher than that under 80 % treatment. These results suggested that R. padi population would grow more quickly from the beginning to the middle of the 21st century and bring more damages to the wheat in arid and semiarid area.
关键词
大气Co2浓度 土壤水分条件 小麦 禾谷缢管蚜 种群增长 为害趋势分类
生物科学引用本文复制引用
张钧,刘敬,王根轩,王亚馥..不同土壤水分条件下CO2浓度对禾谷
缢管蚜种群的影响[J].应用生态学报,2001,12(2):253-256,4.
