CAJ | 학술논문

Penman-Monteith( P-M)参照蒸散发计算模型参数众多，对于实测资料匮乏地区，难以适用。基于四川若尔盖湿地1980~2007年的月值气象数据，利用单因子分析法，并结合DAAG共线性诊断、残差标准差、F检验和t检验，对影响该地区参照蒸散发的气象因子的敏感性进行分析可知，按敏感性大小排序依次为最高气温、日照时数、最低气温、最大相对湿度、最小相对湿度及风速。运用多元线性逐步回归法，建立了由各气象因子构成的参照蒸散发的优化计算模型。利用P-M计算结果作为参照值，对所构建模型进行了验证。结果表明，该优化计算模型有效可行，可替代P-M模型计算若尔盖湿地蒸散发量。
Penman-Monteith( P-M)삼조증산발계산모형삼수음다，대우실측자료궤핍지구，난이괄용。기우사천약이개습지1980~2007년적월치기상수거，이용단인자분석법，병결합DAAG공선성진단、잔차표준차、F검험화t검험，대영향해지구삼조증산발적기상인자적민감성진행분석가지，안민감성대소배서의차위최고기온、일조시수、최저기온、최대상대습도、최소상대습도급풍속。운용다원선성축보회귀법，건립료유각기상인자구성적삼조증산발적우화계산모형。이용P-M계산결과작위삼조치，대소구건모형진행료험증。결과표명，해우화계산모형유효가행，가체대P-M모형계산약이개습지증산발량。
Many parameters are needed in Penman-Monteith Model ( P-M Model) , so it is difficult to be used in the area lack of measured data. On the basis of the collected monthly meteorological data of the Zoige Wetland from 1980 to 2007, the sensitivity of meteorological factors were analyzed by the method combining the single-factor analysis with the DAAG co-linear diagnosis, the residual standard deviation, F-test and t-test. It is found that the sensitivity order of all the meteorological fac-tors is the maximum temperature, sunshine duration, minimum temperature, maximum relative humidity, minimum relative hu-midity and wind speed. In the same time, an optimum calculation model was obtained by the multi-linear step regression meth-od. Taking the calculation values from P-M Model as references, the verification result shows that the established calculation model is valid and effective, and it can replace the P-M model in calculating the evapotranspiration of the research area.