CAJ | 학술논문

利用大型称重式蒸渗仪实测数据，对冬小麦蒸散耗水规律进行研究。结果表明：1）冬小麦的目蒸散量变化曲线呈单峰型，中午大，早晚小。蒸散量在分蘖期出现小峰值，此后逐渐降低，返青后又不断增大，在孕穗期土壤水分亏缺严重，作物蒸散量增加速率有所下降。2）Penman—Monteith法估算的实际蒸散量比蒸渗仪实测值略高，怛两者的相关关系较好。3）经回9-3分析，环境因子对冬小麦宾测蒸散量影响的大小顺序为：净辐射〉空气相对湿度〉土壤温度〉空气温度〉40cm土壤含水量〉风速；建立了几个经验模型，可供作物蒸散量的估算。
이용대형칭중식증삼의실측수거，대동소맥증산모수규률진행연구。결과표명：1）동소맥적목증산량변화곡선정단봉형，중오대，조만소。증산량재분얼기출현소봉치，차후축점강저，반청후우불단증대，재잉수기토양수분우결엄중，작물증산량증가속솔유소하강。2）Penman—Monteith법고산적실제증산량비증삼의실측치략고，달량자적상관관계교호。3）경회9-3분석，배경인자대동소맥빈측증산량영향적대소순서위：정복사〉공기상대습도〉토양온도〉공기온도〉40cm토양함수량〉풍속；건립료궤개경험모형，가공작물증산량적고산。
The article made use of measured data by large-scale weighting lysimeter to study evapotranspiration processes of the winter wheat. The results are as follows. 1 ） Variations of evapotranspiration were single peak curves. Values were bigger at noon, and smaller in the morning and evening, the evapotranspiration was low at seedling stage, peak value appeared at tillering stage, and then the evapotranspiration slowly decreased, but after turning green the evapotranspiration of winter wheat continued to grow, but the soil was so drought that the evapotranspiration increased slowly at the booting stage. 2） Values estimated by lysimeter Penman-Monteith equation were higher than values estimated by Penman- Monteith equation, but good correlation can be found between them. 3） The most influencing factor to e- vapotranspiration was net radiation followed by air relative humidity, soil temperature, air temperature, 40 cm soil water content, and wind speed in order. Some empirical models were also proposed for estimation of evapotranspiration through regression analysis.