本文已被:浏览 601次 下载 1471次
中文摘要: 美国的农业气象比较强调基础和应用基础研究,重点为土壤-植物-大气系统中的能量交换、水分交换、物质积累和转化、农业生产模型以及植物与环境相互作用机制等。试验多在大田条件下进行,配有比较完善的数据自动化采集系统。在农田实际蒸散的测定中,中子仪和蒸散仪得到了广泛的应用,并用来检验各种蒸散计算公式。潜在蒸散的计算方法很多,多在Penman 公式的基础上发展而来,并研制了相应的计算机软件。和其它公式相比,Penman-Monteith公式比较精确,并得到了广泛的应用。
中文关键词: 农业气象,实际蒸散,潜在蒸散,作物系数
Abstract:Research on basic theory and its application in Agrometeorology is ernphasized in the United States of America,especially laying stress on energy exchange,water exchange,accumulation and change of matter,models in agricultural production,and interaction between plant and environrnent in the soil-plant-atmosphere system. Reserch is conducted in field condition with advanced data collect system. Neutron probe and lysimeter are widely used in measurement of actual evapotranspiration and used to verify the formulas for calculating evapotranspiration. Many methods calculating potential evapotranspiration are developed from Penman equation and developed computer soft wares to match it. Comparing to other equations,modified Penman-Monteith equation is accurate and used widely.
文章编号: 中图分类号: 文献标志码:
基金项目:
作者 | 单位 |
朱自玺 | 河南省气象科学研究所,郑州 450003 |
Author Name | Affiliation |
引用文本:
朱自玺,1996.美国农业气象和农田蒸散研究[J].气象,22(6):3-9.
,1996.Research on Agrometeorology and Evapotranspiration of Farmland in the United States of America[J].Meteor Mon,22(6):3-9.
朱自玺,1996.美国农业气象和农田蒸散研究[J].气象,22(6):3-9.
,1996.Research on Agrometeorology and Evapotranspiration of Farmland in the United States of America[J].Meteor Mon,22(6):3-9.