2nd Annual International Conference on Energy, Environmental & Sustainable Ecosystem Development (EESED 2016)

Evaluation of three reference crop water requirements algorithm in north China

Authors
Xiao-Fei Liu, Liang-Jun Fei, Ying-Ying Zhang, An-Zhen Qin
Corresponding Author
Xiao-Fei Liu
Available Online August 2016.
DOI
https://doi.org/10.2991/eesed-16.2017.67How to use a DOI?
Keywords
the reference crop water requirements; Penman-Monteithequation(PT); Hargreaves formula(HA); Priestley Taylor formula(PT)
Abstract

Penman-Monteith equation is widely used to calculate the reference crop water requirements, which is composed of two parts: the first part is the radiation part and the second part is the aerodynamics item. Penman-Monteith equation requires more meteorological factors compared with the Hargreaves formula and Priestley Taylor formula, but it is still unknown about the calculation accuracy of the Hargreaves formula calculation and the Priestley Taylor formula calculation. This research demonstrates that the Hargreaves formula calculation results and the Priestley Taylor formula calculation results have a linear relationship with the Penman-Monteith formula calculation results, the correlation coefficient are separately 0.9461 and 0.9222, the coincidence degree are 0.97585 and 0.971501. It is helpful to use the Hargreaves formula and the Priestley Taylor formula to calculate the reference crop water requirements in North China instead of the Penman-Monteith equation, and the the Hargreaves formula calculation results have a greater accuracy compared with the Priestley Taylor formula calculation results.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
2nd Annual International Conference on Energy, Environmental & Sustainable Ecosystem Development (EESED 2016)
Series
Advances in Engineering Research
Publication Date
August 2016
ISBN
978-94-6252-309-8
ISSN
2352-5401
DOI
https://doi.org/10.2991/eesed-16.2017.67How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Xiao-Fei Liu
AU  - Liang-Jun Fei
AU  - Ying-Ying Zhang
AU  - An-Zhen Qin
PY  - 2016/08
DA  - 2016/08
TI  - Evaluation of three reference crop water requirements algorithm in north China
BT  - 2nd Annual International Conference on Energy, Environmental & Sustainable Ecosystem Development (EESED 2016)
PB  - Atlantis Press
SP  - 485
EP  - 492
SN  - 2352-5401
UR  - https://doi.org/10.2991/eesed-16.2017.67
DO  - https://doi.org/10.2991/eesed-16.2017.67
ID  - Liu2016/08
ER  -