[1]WANG Meiyue,ZHANG Lanzhen,ZHAI Luxin,et al.Modification and Comparative Analysis of Evapotranspiration Estimation Formulas for Phyllostachys edulis and Eucalyptus grandisE. urophylla[J].Research of Soil and Water Conservation,2020,27(06):353-361.
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Modification and Comparative Analysis of Evapotranspiration Estimation Formulas for Phyllostachys edulis and Eucalyptus grandis×E. urophylla
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 06
Page number:
353-361
Column:
目次
Public date:
2020-10-20
- Title:
- Modification and Comparative Analysis of Evapotranspiration Estimation Formulas for Phyllostachys edulis and Eucalyptus grandis×E. urophylla
- CLC:
- S161.4
- DOI:
- -
- Abstract:
- To analyze the applicability of the different formulas for estimating evapotranspiration and to explore the water behavior of Phyllostachys edulis and Eucalyptus grandis×E. urophylla, based on the measured evapotranspiration of potted Phyllostachys edulis and Eucalyptus grandis×E. urophylla using weighting method and the calculated evapotranspiration with conventional meteorological data, the estimation formulas were modified by using linear regression approach. The modification improvement and the applicability of these formulas were evaluated; in addition, the evapotranspiration difference of the two plants was analyzed. The results show that before modification, the accuracy for evapotranspiration of Phyllostachys edulis estimated by the Jensen-Haise, Hargreaves1975 and Doorenbos-Pruitt methods is relatively high, and the evapotranspiration values of Eucalyptus grandis×E. urophylla estimated by the FAO Penman-Monteith, Hargreaves1975 and Jensen-Haise methods are close to the actual measured values. The accuracy of actual evapotranspiration estimation is improved significantly by the modified evapotranspiration Formulas. It is also shown that the evapotranspiration of Eucalyptus grandis×E. urophylla is up to 38% larger and more sensitive to the change of meteorological factors than that of Phyllostachys edulis. The order for applicability of these 9 formulas in Northern Guangxi is found as FAO Penman-Monteith, Jensen-Haise, Hargreaves1975, Doorenbos-Pruitt, Priestley-Taylor, Hargreaves1985, Makkink, Abtew and Turc.
- References:
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Last Update:
2020-10-20