Calculation Method of Natural Leymus chinensis Evapotranspiration under Shallow Groundwater Level Condition

Abstract:

Natural Leymus Chinensis evapotranspiration in the Otindag sandy area under shallow ground-water level condition is calculated based on Soil-Water-Atmosphere-Plant (SWAP) Model developed by Wageningen Agricultural College. The observed values in open test and interior experiment, the meteorological observation and crop index, and the data of soil volumetric moisture content in 2005, are used to calibrate parameters of SWAP model, determine and check out the water transfer parameters of SWAP model with soil volumetric moisture content in 2006. The result shows that SWAP model has high precision and can be use to simulate evapotranspiration under shallow groundwater level condition.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1644-1647
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1644
• Online since: September 2013
• Authors: Yan Wei Liu, Xiao Ping Han, Yu Long Jing
• Keywords: Evapotranspiration, Leymus chinensis, Otindag Sandy Area, Shallow Groundwater Level, SWAP Model

References

[1] Penman H L. Proc Roy sec A, 1948, 193: 120-145.

[2] Richard G Allen, Luis S Pereira, Dirk Raes Martin Smith. Crop evapotranspiration-guidelines for computing crop water requirements [M]. FAO Irrigation and Drainage Paper 56, 1998, Rome.

[3] Jingsheng Sun, Yumin Chen, Shaozhong Kang, et al. Irrigation and Drainage, 1995, 14(3): 24-29(in Chinese).

[4] Yu Liu, L S Pereira. Transactions of the Chinese Society of Agricultural Engineering, 2000(9): 26-30 (in Chinese).

[5] Jiabing Cai, Lingen Cai, Yu Liu, et al. China Rural Water and Hydropower, 2002(2): 32-37 (in Chinese).