CAJ | 학술논문

以ASCE标准Penman-Montieth公式为基准,在不同气候区分别对Priestley-Taylor和Hargreaves这两种常用的参考作物蒸发蒸腾量EFref计算公式在高矮两种参考作物上进行适应性分析、地区率定以及率定公式验证。结果表明：以矮型参考作物为参考面时, Priestley-Taylor和Hargreaves公式分别在湿润区和干旱区具有较好的适应性,但对于EFref的估算仍具有较大的误差,两公式均不能直接应用于高型参考作物；经地区率定后两公式在干旱、半干旱半湿润、湿润3个气候区高型参考作物上的计算精度显著改善,但仍低于在矮型参考作物上的精度,Priestley-Taylor公式在气候区间的差异性不明显,Hargreaves公式在干旱区有更好的适应性。
이ASCE표준Penman-Montieth공식위기준,재불동기후구분별대Priestley-Taylor화Hargreaves저량충상용적삼고작물증발증등량EFref계산공식재고왜량충삼고작물상진행괄응성분석、지구솔정이급솔정공식험증。결과표명：이왜형삼고작물위삼고면시, Priestley-Taylor화Hargreaves공식분별재습윤구화간한구구유교호적괄응성,단대우EFref적고산잉구유교대적오차,량공식균불능직접응용우고형삼고작물；경지구솔정후량공식재간한、반간한반습윤、습윤3개기후구고형삼고작물상적계산정도현저개선,단잉저우재왜형삼고작물상적정도,Priestley-Taylor공식재기후구간적차이성불명현,Hargreaves공식재간한구유경호적괄응성。
With ASCE standardized reference Penman-Montieth as benchmark reference evapotranspiration equation, two commonly used ETref estimating methods, namely Priestley-Taylor and Hargreaves, were evaluated, local calibrated and validated in different climate regions in China. The results showed that Priestley-Taylor and Hargreaves performed better for grass reference crop in humid and arid regions,respectively. But the error in ETref estimating is unneglectable, and its can not be applied directly to alfalfa reference crop without local calibration. The local calibrated Priestley-Taylor and Hargreaves performed better in different climate regions, and the accuracy was significantly improved for alfalfa reference crop. Both methods performed better on grass than alfalfa reference crop. Performance of Priestley-Taylor showed no significant difference in different climate region, and Hargreaves had higher precision in arid region.