Evaluation of pan coefficient for reference crop evapotranspiration for semi-arid region

被引：47

作者：

Gundekar, H. G. ^{[1
]}

Khodke, U. M. ^{[2
]}

Sarkar, S. ^{[1
]}

Rai, R. K. ^{[3
]}

机构：

[1] Indian Inst Technol, Dept Hydrol, Roorkee 247667, Uttar Pradesh, India

[2] Marathwada Agr Univ, Dept Irrigat & Drainage Engn, Parbhani 431402, Maharashtra, India

[3] State Water Resources Agcy, Dept Irrigat, Ground Floor WALMI Bhawan, Lucknow 226026, Uttar Pradesh, India

来源：

IRRIGATION SCIENCE | 2008年 / 26卷 / 02期

关键词：

D O I：

10.1007/s00271-007-0083-y

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Pan coefficient (K-pan) is the important factor for computation of reference evapotranspiration (ETo) from pan evaporation (E-pan). In this paper, the approaches proposed by Cuenca (Irrigation system design: an engineering approach. Prentice-Hall, Englewood Cliffs, 1989), Snyder (J Irrig Drain Eng 118(6):977-980, 1992), Orang (Potential accuracy of the popular non-linear regression equations for estimating pan coefficient values in the original and FAO-24 tables. Unpublished Report, Calif. Dept. of Water Resources, Sacramento, 1998), Raghuwanshi and Wallender (J Irrig Drain Eng 118 (6):977-980, 1998) and Pereira et al. (Agric Water Manage 76:75-82, 1995) were evaluated for a semi-arid region. By comparing with the FAO 56 Penman-Monteith (F-PM) method the Snyder (J Irrig Drain Eng 118(6):977-980, 1992, 1992) approach was best suited for the semi-arid region.

引用

页码：169 / 175

页数：7

共 23 条

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