CAJ | 학술논문

利用涡度相关法与垂直梯度法对安徽寿县农田湍流通量进行了连续观测，分析了不同天气状况与不同下垫面对农田湍流通量的影响。结果显示：农田湍流通量受不同天气条件的影响显著。LE、H、G变化特征在晴、阴、雨条件下均呈单峰型曲线，日峰值、变化幅度：LE＞H＞G；通量值受短时气象条件影响有所波动，其稳定程度：晴天＞阴天＞雨天；雪天湍流通量单峰曲线规律不明显，LE波动剧烈，G为负值。地表反照率：雪地＞裸地＞作物下垫面；雪面反照率最大，导致H、LE最小，G相对较大，为负值；作物下垫面地表反照率随作物生长周期有先增后减的趋势。反照率与湍流通量各值的变化呈负相关。
이용와도상관법여수직제도법대안휘수현농전단류통량진행료련속관측，분석료불동천기상황여불동하점면대농전단류통량적영향。결과현시：농전단류통량수불동천기조건적영향현저。LE、H、G변화특정재청、음、우조건하균정단봉형곡선，일봉치、변화폭도：LE＞H＞G；통량치수단시기상조건영향유소파동，기은정정도：청천＞음천＞우천；설천단류통량단봉곡선규률불명현，LE파동극렬，G위부치。지표반조솔：설지＞라지＞작물하점면；설면반조솔최대，도치H、LE최소，G상대교대，위부치；작물하점면지표반조솔수작물생장주기유선증후감적추세。반조솔여단류통량각치적변화정부상관。
In this study,the eddy covariance and vertical gradient method was used for a continuous observa?tion on the farmland turbulent flux in Shouxian,Anhui province.The effects of different weather conditions and underlying surfaces on farmland turbulent fluxes was analyzed.The results show that the effects of the different weather conditions to farmland turbulent flux was significantly different.LE,H,G variation in sunny, cloudy,raining conditions showed a unimodal curve,meanwhile there may be fluctation affected by short-term weather conditions.Daily peak and Amplitude of variation shows:LE>H>G;The stability degree of flux value changing over time:sunny>cloudy>raining;In the snow,there is no obvious turbulent fluxes uni?modal regularity.LE is volatile extremely while G is the output state.The surface albedo:snowfield> bare field>crop land;Snow surface albedo was the largest,which result in H and LE was in minimum level,G is negative and higher by contrast.Crop land surface albedo has a tendency to increase after the decrease along with the crop growth cycle.Albedo change was negatively correlated with the turbulent flux value.