CAJ | 학술논문

利用2007年锦州玉米农田生态系统野外观测站玉米生长季辐射资料，对地表反照率综合模型、半经验双层模型和简化双层模型的模拟精度进行比较。结果表明：简化双层模型对玉米生育初期模拟能力较差，其他时段模拟能力均较强，尤其在玉米生育后期更明显；半经验双层模型除在玉米叶面积指数处于最大时期模拟误差较小外，其他时段基本无法模拟。综合模型在玉米生育期大部分时段模拟能力均较强，仅在玉米生育后期模拟能力稍差，该模型对实现玉米农田地表反照率动态参数化更理想，可为改进陆面过程模型提供参考。
이용2007년금주옥미농전생태계통야외관측참옥미생장계복사자료，대지표반조솔종합모형、반경험쌍층모형화간화쌍층모형적모의정도진행비교。결과표명：간화쌍층모형대옥미생육초기모의능력교차，기타시단모의능력균교강，우기재옥미생육후기경명현；반경험쌍층모형제재옥미협면적지수처우최대시기모의오차교소외，기타시단기본무법모의。종합모형재옥미생육기대부분시단모의능력균교강，부재옥미생육후기모의능력초차，해모형대실현옥미농전지표반조솔동태삼수화경이상，가위개진륙면과정모형제공삼고。
Using radiation data from Jinzhou agricultural ecosystem research station during corn growing season in 2007 ,simulation precisions of vegetation surface albedo (α)from different dynamic simulation models were com-pared,including models of a comprehensive(CM),a semi-empirical double layer(SEDLM)and a simplified doub-le layer(SDLM).The results show that the SDLM achieves higher simulation precision in most time of growing season,except during the seedling period.However,simulation errors of the SEDLM are only acceptable when leaf area index reaches the maximum,and αsimulated by the SEDLM is useless in most growth periods.By contrast, the CM exhibites stronger simulation ability in most growth periods,except during the late growth.Therefore,the CM is the desirable method to perform dynamic parameterization ofαin maize field,which could provide refer-ences for improving land surface model.