Assessing Impacts of Ozone on Agricultural Crops: II. Crop Yield Functions and Alternative Exposure Statistics

摘要: A principal objective of the National Crop Loss Assessment Network (NCLAN) is to develop O/sub 3/ dose-crop yield response models for use in assessing effects on economically important crop species and cultivars. This paper part a third assessment report from NCLAN. The NCLAN composed several cooperating programs with field sites different regions country. Open-top chambers allow control concentration-crop functions major crops studied 1980 1981, all during 1982. Four averaging times (exposure statistics) are used Weilbull model each experimental data set. Models derived using two seasonal mean statistics (1-h/day 7-h/day means) peak (1-h 7-h) compared. results suggest that four similar value when obtained same Seasonal can be which estimate given or years at one site. However, site cannot bemore » predict second site, years. 12 references, 4 tables.« less