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

被引:49
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
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 Unpublished Report, Calif.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
收藏
页码:169 / 175
页数:7
相关论文
共 23 条
[1]  
Allen R. G., 1998, FAO Irrigation and Drainage Paper
[2]  
Allen RG, 2000, NATIONAL IRRIGATION SYMPOSIUM, PROCEEDINGS, P201
[3]  
Allen RG., 1994, ICID Bull, V43, P134, DOI DOI 10.12691/AJWR-5-4-3
[4]  
[Anonymous], IRRIG DRAIN DIV REP
[5]  
[Anonymous], 386 WASH AGR EXP STA
[6]  
Burman R. D., 1980, Design and operation of farm irrigation systems., P189
[7]  
Conceição Marco Antônio Fonseca, 2002, Sci. agric. (Piracicaba, Braz.), V59, P417, DOI 10.1590/S0103-90162002000300001
[8]  
Cuenca R. H., 1989, Irrigation system design. An engineering approach., p552pp
[9]  
Doorenbos J., 1977, GUIDELINES PREDICTIN
[10]  
Doorenbos J, 1975, IRRIGATION DRAINAGE