Assessing Impacts of Ozone on Agricultural Crops: II. Crop Yield Functions and Alternative Exposure Statistics
Assessing Impacts of Ozone on Agricultural Crops: II. Crop Yield Functions and Alternative Exposure Statistics
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评估臭氧对农作物的影响：II。
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
P. Temple
中科院分区：
文献类型：
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作者：
W. Heck;W. Cure;J. O. Rawlings;Lawrence J. Zaragoza;A. Heagle;H. E. Heggestad;R. Kohut;L. Kress;P. Temple
国家作物损失评估网络 (NCLAN) 的主要目标是开发 O/sub 3/ 剂量作物产量响应模型，用于评估 O/sub 3/ 对经济上重要的作物品种和品种的影响。本文是 NCLAN 第三次评估报告的一部分。 NCLAN 由多个合作项目组成，在全国不同地区设有现场站点。开顶室可以控制 1980 年和 1981 年研究的主要作物以及 1982 年研究的所有作物的 O/sub 3/ 浓度-作物产量函数。每个实验数据集的 Weilbull 模型中使用四个 O/sub 3/ 平均时间（暴露统计）。比较使用两个季节性平均 O/sub 3/ 统计数据（1 小时/天和 7 小时/天平均值）和两个季节性峰值 O/sub 3/ 统计数据（1 小时和 7 小时）得出的模型。结果表明，当从同一数据集获取并用于同一数据集时，所有四个 O/sub 3/ 统计数据具有相似的值。季节性平均 O/sub 3/ 统计数据可用于开发模型，该模型可用于根据从不同地点或一个地点不同年份获得的数据来估计给定作物的产量。然而，从一个站点获得的峰值统计数据不能更多地用于根据在第二个站点获得的数据或在不同年份在同一站点获得的数据来预测产量。 12 条参考文献，4 个表格。« 更少
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 the effects of O/sub 3/ on economically important crop species and cultivars. This paper is part of a third assessment report from NCLAN. The NCLAN is composed of several cooperating programs with field sites in different regions of the country. Open-top chambers allow control of O/sub 3/ concentration-crop yield functions for the major crops studied in 1980 and 1981, and for all crops studied during 1982. Four O/sub 3/ averaging times (exposure statistics) are used in a Weilbull model for each experimental data set. Models derived using two seasonal mean O/sub 3/ statistics (1-h/day and 7-h/day means) and two seasonal peak O/sub 3/ statistics (1-h and 7-h) are compared. The results suggest that all four O/sub 3/ statistics are of similar value when obtained from and used for the same data set. Seasonal mean O/sub 3/ statistics can be used to develop models which can be used to estimate yield of a given crop from data obtained from different sites or from different years at one site. However, peak statistics obtained from one site cannot bemore » used to predict yield from data obtained at a second site, or from data obtained at the same site in different years. 12 references, 4 tables.« less